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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
5 Pin Mini SPDT Relay 12V 10A 250V PCB Mount Electromagnetic Relay
[Relay Module, Relays] 12V PCB Mount Sugar Cube SPDT Relay – 5 Pin 10A The 12V PCB Mount Sugar Cube SPDT Relay is a compact Single Pole Double Throw (SPDT) electromagnetic relay designed for switching AC and DC electrical loads using a microcontroller, sensor, automation circuit, or other low-power control system. Its compact PCB-mount design makes it suitable for DIY electronics, home automation, security systems, switching circuits, motor control, lighting control, and embedded applications. The relay features a 12V DC coil and a 5-pin SPDT configuration consisting of two coil terminals, COM (Common), NO (Normally Open), and NC (Normally Closed) contacts. When the coil is energized, the internal contact switches between the NC and NO terminals. With contact ratings of up to 10A at 250V AC, 10A at 125V AC, 12A at 120V DC, and 10A at 28V DC, this relay is suitable for a wide range of electrical switching applications. ⭐ Key Features SPDT (Single Pole Double Throw) relay 12V DC coil Compact Sugar Cube design 5-pin configuration PCB mounting type 10A @ 250V AC contact rating 10A @ 125V AC contact rating 12A @ 120V DC contact rating 10A @ 28V DC contact rating Coil resistance: approximately 270Ω Approximately 45mA nominal coil current 50/60Hz frequency specification Fast switching response Suitable for microcontroller and sensor-controlled switching Ideal for automation and control applications 📋 Technical Specifications Product Type: PCB Mount Relay Relay Type: SPDT (Single Pole Double Throw) Contact Configuration: 1 Form C Number of Pins: 5 Coil Voltage: 12V DC Trigger Voltage: 12V DC Coil Resistance: 270Ω Nominal Coil Current: Approximately 45mA Frequency: 50/60Hz Maximum AC Load: 10A @ 250V AC Maximum AC Load: 10A @ 125V AC Maximum DC Load: 12A @ 120V DC Maximum DC Load: 10A @ 28V DC Operating Time: 10ms Release Time: 5ms Mounting Type: PCB Mount Contact Terminals: COM / NO / NC Coil Terminals: Coil End 1 / Coil End 2 🔌 Pin Configuration Coil End 1: One terminal of the 12V DC relay coil Coil End 2: Other terminal of the 12V DC relay coil COM: Common switching contact NO: Normally Open contact NC: Normally Closed contact When the relay coil is not energized, COM is connected to NC. When the 12V DC coil is energized, COM switches from NC to NO. 🛠️ How It Works The relay uses an electromagnetic coil to mechanically switch an electrical circuit. Applying 12V DC to the coil energizes the relay and changes the contact position. A load connected between COM and NC remains connected when the relay is inactive. A load connected between COM and NO remains disconnected until the relay coil is energized. This allows a low-power control circuit such as an Arduino, microcontroller, sensor, timer, or automation controller to control a higher-current AC or DC load. 🔧 Applications Arduino Projects Microcontroller Projects Sensor-Controlled Switching Home Automation Security Systems Lighting Control Fan Control Motor Control Pump Control Power Supply Switching Industrial Control Systems Embedded Electronics DIY Electronics Projects 📦 Package Includes 1 × 12V PCB Mount Sugar Cube SPDT Relay – 5 Pin 10A ⚠️ Precautions Use a suitable 12V DC supply for the relay coil. Do not exceed the specified contact voltage and current ratings. Check the COM, NO, NC, and coil terminals before wiring. Use suitable flyback protection when driving the relay coil from sensitive electronic circuits. Use appropriate suppression/protection components for inductive loads such as motors, solenoids, and coils. Provide sufficient PCB insulation and clearance when switching mains voltage. Disconnect power before changing or modifying wiring. Do not touch exposed mains-voltage terminals during operation.
Out of stock1.3 Inch I2C IIC 128×64 OLED Display Module – White
[LED/LCD Display Module] The 1.3 Inch I2C 128×64 OLED Display Module is a compact, high-contrast display designed for Arduino, ESP32, NodeMCU, Raspberry Pi, and other microcontroller-based projects. This module uses OLED (Organic Light Emitting Diode) technology, providing bright white pixels with excellent contrast and wide viewing angles. Powered by the SSH1106 controller chip, the display offers smooth graphics rendering and reliable performance. With a resolution of 128×64 pixels, it can display text, graphics, icons, and sensor data clearly even in small embedded systems. The module communicates using the I2C (IIC) interface, requiring only 4 pins (VCC, GND, SDA, SCL), which helps save valuable GPIO pins on your microcontroller. It operates within a voltage range of 3.3V to 5V, making it compatible with most development boards. Unlike traditional LCD displays, OLED displays do not require a backlight because each pixel emits its own light. This results in lower power consumption, better contrast, and faster response times. Due to its compact size, lightweight design, and simple wiring, the display module is ideal for IoT devices, sensor monitors, battery indicators, portable electronics, robotics projects, and DIY electronics applications. ⭐ Features 1.3 Inch OLED Display Module 128 × 64 pixel resolution White pixel display SSH1106 display controller I2C / IIC communication interface Requires only 4 pins High contrast and wide viewing angle Low power consumption Compatible with Arduino, ESP32, NodeMCU, Raspberry Pi Ideal for embedded and IoT projects 🔧 Technical Specifications Display Size: 1.3 inch Resolution: 128 × 64 pixels Controller Chip: SSH1106 Display Area: 34.5 × 19 mm Interface Type: IIC / I2C Pixel Color: White Driving Voltage: 3.3V – 5V Operating Temperature: -40°C to 70°C Physical Dimensions Length: 35.5 mm Width: 33.5 mm Height: 4 mm Weight: 7 g 📦 Package Includes 1 × 1.3 Inch 128×64 OLED Display Module (White)
Type-C 3S 4A 18650 Lithium Battery Charger Module | USB-C Step-Up Boost Charging Board for Li-ion
[Li-ion Rechargeable Battery Charger, Step UP Buck Converter] The 3S Type-C Charging Module Battery Charger Board is a compact and highly efficient solution for charging 18650 lithium-ion and Li-Po polymer battery packs. Designed specifically for 3S battery configurations (12.6V charging voltage), this module integrates a USB Type-C input and a high-frequency step-up (boost) circuit, making it ideal for modern portable power applications. With multiple current variants available (1A / 2A / 4A), the module offers flexibility for different power requirements. Its high switching frequency up to 1MHz ensures fast response, stable performance, and compact PCB size. The intelligent quasi-CV (constant voltage) mode compensates for voltage loss caused by internal battery resistance and PCB trace resistance, ensuring accurate and efficient charging. This charging board also features automatic recharge capability, restarting charging when battery voltage drops, and excellent adaptability to power sources with limited driving capability. Built-in protection functions safeguard the battery and connected devices from over-voltage, under-voltage, and short-circuit conditions, enhancing safety and battery lifespan. Thanks to its wide compatibility and reliable performance, this module is suitable for a broad range of applications including DIY power banks, portable electronics, solar charging systems, audio equipment, POS machines, electric fans, Bluetooth devices, and other Type-C powered equipment. ⭐ Key Features ✔ USB Type-C Input for convenient and modern charging ✔ Supports 3S Lithium Battery Packs (12.6V charging voltage) ✔ Multiple Charging Current Options: 0.37A (1A version) 0.74A (2A version) 1.48A (4A version) ✔ High Switching Frequency up to 1MHz for stable and efficient operation ✔ Quasi-CV Charging Mode compensates voltage loss ✔ Automatic Recharge Function ✔ Built-in Protection: Over-voltage, low-voltage, short-circuit ✔ Compact design, easy integration into DIY projects 🔧 Technical Specifications Battery Configuration: 3S lithium battery Supported Batteries: 18650 Li-ion / Li-Po polymer Input Voltage: DC 3–6V (Recommended: 3.7V / 5V) Input Current: Up to 4A (4A version) Charging Voltage: 12.6V Charging Current: 0.37A (1A version) 0.74A (2A version) 1.48A (4A version) Switching Frequency: Up to 1MHz Protection Functions: Over-voltage, under-voltage, short-circuit 🎯 Applications DIY power banks 18650 lithium battery packs Mobile phones & portable devices Bluetooth speakers & audio equipment Solar charging systems POS machines Cameras, MP3/MP4 players Game consoles & notebooks Type-C powered electronics 📦 Package Includes 1 × 3S Type-C Charging Module Battery Charging Board 4A Version Please note: Image Only for representation purposes. Actual products may vary as per available stock.
XH-M312 TPA3118D2 45W*2 Digital Amplifier Board Dual Channel Audio Amplifier Board Module
[Amplifier Board] Description XH-M312 TPA3118D2 Dual-Channel Digital Amplifier Board – 45W Output Upgrade your audio experience with the XH-M312 Digital Amplifier Board, powered by the advanced TPA3118D2 digital amplifier chip. This high-performance board delivers 45W output per channel, offering exceptional audio clarity and power. Designed for hobbyists and audio enthusiasts, it features user-friendly terminal blocks, making it a perfect ready-to-use solution for your electronic projects. Key Features: Powerful Dual-Channel Output: Delivers 45W per channel, perfect for driving a pair of 30W double speakers. Advanced Protection Mechanisms: Built with a brand-new C chip that includes: Over-voltage protection Over-current protection Over-heat protection Short-circuit protection This ensures reliable performance and longevity, even during demanding operations. Easy Connectivity: Equipped with 2P audio output terminals with a 5mm pitch, allowing secure and straightforward speaker connections. Versatile Application: Ideal for DIY audio projects, home audio systems, and electronic enthusiasts seeking high-quality sound performance. Compatibility: Perfect for superior audio output, making it suitable for custom speaker setups, audio experiments, or enhancing your existing audio systems. Boost Your Audio Performance Today! Bring your projects to life with the XH-M312 TPA3118D2 Dual-Channel Digital Amplifier Board—a reliable, high-power, and easy-to-use solution for outstanding sound quality. Why Choose the XH-M312 Amplifier Board? Whether you’re a seasoned DIYer or new to electronics, this amplifier board is built for convenience and reliability. The terminal block design simplifies connections, while the robust protection features safeguard your setup, ensuring worry-free operation. Package Includes: 1 x XH-M312 TPA3118D2 45W*2 Digital Amplifier Board
TowerPro Metal Gear MG90S Mini Digital Servo Motor (180° Rotation)
[Servo Motor] ⚙️ TowerPro MG90S Mini Digital Metal Gear Servo Motor (180°) Metal Gear • Digital Servo • 180° Rotation • High Precision • Ideal for RC & Robotics The TowerPro MG90S Mini Digital Servo Motor is a compact, high-performance 9g metal gear servo designed for precise position control in robotics, RC models, automation, and DIY electronics projects. Equipped with all-metal gears, a digital control circuit, and high positioning accuracy, the MG90S offers greater durability, faster response, and higher torque than standard plastic gear servos. Operating from 4.8V to 6.0V DC, the servo delivers a stall torque of up to 2.2 kg·cm and a rotation angle of approximately 180°, making it ideal for robotic arms, pan-tilt camera systems, RC airplanes, RC cars, boats, educational kits, and embedded control applications. The standard 3-wire JR/Futaba-compatible connector allows direct interfacing with Arduino, ESP32, Raspberry Pi, STM32, and most RC receivers. Its lightweight design, compact dimensions, and excellent holding torque make the MG90S one of the most popular micro servos for hobbyists, students, and professionals alike. ⭐ Features Genuine TowerPro MG90S digital servo Durable all-metal gear transmission Approximate 180° rotation angle High positioning accuracy Fast control response High holding torque Smooth and quiet operation Lightweight and compact design Standard 3-wire servo interface Compatible with Arduino, ESP32, Raspberry Pi and RC receivers Ideal for robotics, RC models and automation projects 📋 Technical Specifications Product Type: Mini Digital Servo Motor Brand: TowerPro Model: MG90S Gear Type: Metal Gear Rotation Angle: Approximately 180° Operating Voltage: 4.8V–6.0V DC Stall Torque: 1.8 kg·cm @ 4.8V 2.2 kg·cm @ 6.0V Operating Speed: 0.10 sec/60° @ 4.8V 0.08 sec/60° @ 6.0V Control Signal: PWM (50Hz Standard Servo Signal) Dead Band Width: 1µs Connector Type: JR / Futaba Compatible Cable Length: Approximately 25cm Dimensions: 22.8 × 12.2 × 28.5 mm Weight: Approximately 13.4g Operating Temperature: 0°C to +55°C These specifications are consistent with the manufacturer's published specifications. 🔧 Applications Suitable for: Arduino Projects ESP32 Projects Raspberry Pi Projects Robotic Arms Humanoid Robots RC Airplanes RC Cars RC Boats Pan-Tilt Camera Systems Automatic Door Mechanisms DIY Electronics Educational Robotics Smart Automation Projects Mechatronics Projects 📦 Package Includes 1 × TowerPro MG90S Mini Digital Servo Motor 1 × Servo Horn Set Single Arm Horn Double Arm Horn Four Arm Horn 1 × Mounting Screw Set ⚠️ Note Operate the servo only within the recommended 4.8V–6.0V DC supply range. For stable operation, use an external regulated power supply when driving the servo from microcontrollers. Product appearance, cable color, or accessories may vary slightly depending on the manufacturing batch. Counterfeit MG90S servos are common in the market. Purchase from trusted suppliers for genuine performance.
Stepper Motor(28YBJ-48) with SMD ULN2003 Driver Board
[Servo Motor] The 28BYJ-48 Stepper Motor with ULN2003 Driver Board is a compact, reliable, and low-cost 5V geared stepper motor kit designed for Arduino, robotics, automation, and embedded control applications. This motor features a 4-phase, 5-wire configuration with an integrated reduction gearbox, delivering high torque and precise positioning at low speeds. One of the biggest advantages of a stepper motor is its ability to operate accurately in an open-loop control system, eliminating the need for expensive feedback sensors or encoders. The motor position is precisely controlled by simply counting the input step pulses. The included ULN2003 driver board acts as a signal amplifier, allowing low-power control signals from microcontrollers such as Arduino, Raspberry Pi, ESP32, and 8051 to safely drive the stepper motor. The driver board also features four LED indicators (A, B, C, D) that display the working status of each phase in real time, making testing and debugging easy. With its compact size, plug-and-play connector, stable operation, and high reliability, this stepper motor kit is ideal for robot arms, CNC projects, camera sliders, 3D mechanisms, automation systems, and educational electronics projects. ⭐ KEY FEATURES ✔ 28BYJ-48 Mini Geared Stepper Motor – 5V DC✔ 4-Phase, 5-Wire Configuration✔ Includes ULN2003 Stepper Motor Driver Board✔ Open-Loop Precise Control – No encoder required✔ Built-in Gear Reduction for Higher Torque✔ Plug-and-Play Interface – Easy connection✔ Phase LED Indicators on driver board✔ Compact size, lightweight & reliable✔ Perfect for Arduino, robotics & automation projects 🔧 TECHNICAL SPECIFICATIONS Stepper Motor Model: 28BYJ-48 Supply Voltage: 5V DC (commonly used version) Number of Phases: 4 Wires: 5 Stride Angle: 5.625° × 1/64 (with gearbox) Gear Reduction Ratio: 1:64 (approx.) Dimensions: 44 × 44 × 28 mm (L × B × H) Type: Geared Stepper Motor Driver Board Driver Model: ULN2003 Input Interface: Standard 5-pin connector Indicators: 4 Phase LED status indicators Function: Signal amplification & motor driving 🎯 APPLICATIONS Arduino & microcontroller projects Robotics & automation systems Camera sliders & pan-tilt systems CNC & 3D motion mechanisms Educational electronics kits Smart home & IoT projects 📦 PACKAGE INCLUDES 1 × 28BYJ-48 5V Stepper Motor 1 × ULN2003 Stepper Motor Driver Board
Type C BMS 3S 2A 18650 Lithium Battery Charger Board USB C Step-up Boost Module for Li-Po Polymer Power Bank
[Step UP Buck Converter] Description The 3S Charging Module Battery Charging Board is a compact and versatile solution for efficiently charging 18650 lithium-ion batteries. Designed with a USB Type-C input for convenient power connection, this module supports 3S configurations, making it suitable for a range of applications. Feature : Charging current : 0.37A(1A Version);0.74A(2A Version);1.48A(4A Version) Input voltage : DC 3-6V(Recommend DC 3.7V 5V) Input current : 2A(2A Version); Charging voltage : 12.6V Charging current : 0.74A(2A Version); Switching frequency up to 1MHz Quasi-CV mode to compensate for the voltage loss on the battery’s internal Resistance and trace resistance automatic recharge Good adaptability to input supply with limited driving capability With battery overvoltage protection, low voltage protection, and short circuit protection Great for PDA, MP3, MP4, cameras, Bluetooth applications, games consoles, notebooks, 18650 lipo lithium battery, phones, solar charging, audio equipment, POS, electric fan, Type-C charging equipment, etc. Package Include: 1 x Charging Module Battery Charging Board Type-C Step-Up Boost Module 18650 Lithium Battery Charger Module( 3S 2A)
Out of stock32700 32650 3.2V Rechargeable 6000mAh LifePO4 Battery Cell for EV
[LiFePO4 Battery Cell] 32700 32650 3.2 V 6000 MAH LiFePO4 Battery This Standard 32700 32650 3.2 V Rechargeable 6000mAh LifePO4 Battery Cell is a single cell powerful battery cell with a massive 6000 mAh capacity. This LifePO4 battery is very convenient to install in your project where 3.2 Volt with high capacity is needed. The Standard 6000mAh 3.2V Rechargeable LifePO4 Battery is a source of power for various portable devices including flashlights, hobby transmitters, and receivers, etc. This Battery can be the best Replacement to the normal Non-Rechargeable AA Battery used in many applications such as in RC Transmitter/Reciever Remote, which can make your flight driving experience very cost-effective and efficient in terms of power output than that of conventional AA batteries. IMPORTANT: Never completely discharge the LifePO4 battery ( below 2.5V under load ). Charge fully to 4.2V before first use. Never attach any metal moving part like a magnet to the battery contact. Never use force to install (insert) LifePO4 battery. Do not use old and new battery cells together. Use only a high-quality battery charger. Do not expose to heat. Do not short (connect) positive (top), and negative (bottom) battery terminals (contacts). Keep battery that is not in use in the plastic holder (or any insulating [plastic] container). Do not charge the battery over 4.22V (another reason to use a high-quality battery charger). Don’t charge unattended. Do not store your LifePO4 batteries fully charged (for an extended period of time). Store in a cold and dry place at approximately 3.7V (storage charge). After the battery is discharged-don’t leave it discharged, charge it as soon as possible. FEATURES: Shape: Cylindrical Battery Battery Type: Lithium-Ion Rechargeable Battery High performance and capacity Flat top to suit many devices fitting PACKAGE INCLUDES: 1 x 32700 or 32650 3.2 V Rechargeable 6000mAh LifePO4 Battery Cell for EV. Note: Color and Print on the Cells may vary with every lot. We ship it randomly
3-6V DC Mini Submersible Water Pump
[DC Water Pump] Description Overview Of This 3-6V Mini Submersible Water Pump The 3-6V Mini Submersible Water Pump offers efficient water circulation in compact setups. Operating at 6V, this micro pump ensures reliable performance for various water based projects. With its submersible design, it’s perfect for aquariums, fountains, and hydroponic systems. Designed for versatility, the 3-6V Mini Submersible Water Pump is ideal for both indoor and outdoor applications. Its compact size and low voltage operation make it suitable for DIY projects and education demonstrations. Enjoy reliable water pumping with minimal power consumption. Experience hassle-free water management with the 3-6V Mini Submersible Water Pump. Whether it’s for hobbyist projects or educational purposes, this pump delivers consistent performance, making it a valuable addition to any water based setup. Features Submersible Design: The 3-6V Mini Submersible Water Pump is fully submersible, allowing for versatile placement in water based setups. Low Voltage Operation: With a voltage range of 3-6V, this pump offers efficient water circulation while consuming minimal power. Compact Size: Its small footprint makes it ideal for tight spaces and ensures easy integration into various projects. Quiet Operation: Enjoy peaceful water circulation with the pump’s quiet operation, suitable for home and office environments. Durable Construction: Constructed with durable materials, this micro pump ensures long-lasting performance and reliability. SPECIFICATION DETAILS Operating Voltage 3 ~ 6V Operating Current 130 ~ 220mA Flow Rate 80 ~ 120 L/H Maximum Lift 40 ~ 110 mm Continuous Working Life 500 hours Driving Mode DC, Magnetic Driving Material Engineering Plastic Outlet Outside Diameter 7.5 mm Outlet Inside Diameter 5 mm Main Use Of This 3-6V Micro Submersible Pump Aquariums: Ensure optimal water circulation and filtration in fish tanks using the 3-6V Mini Submersible Water Pump. Fountain Systems: Create stunning water features with ease using this trusted 6V micro submersible water pump. Hydroponic Systems: Deliver essential nutrient solutions efficiently to plants in hydroponic setups with the 3-6V Mini Submersible Water Pump. DIY Projects: Incorporate this versatile pump into various DIY water based projects for smooth water circulation. Educational Demonstrations: Enhance learning experiences with demonstrations on fluid dynamics using the 3-6V Mini Submersible Water Pump.
Stepper Motor(28YBJ-48) with ULN2003 Driver Board
[Servo Motor] The 28BYJ-48 Stepper Motor with ULN2003 Driver Board is a compact, reliable, and low-cost 5V geared stepper motor kit designed for Arduino, robotics, automation, and embedded control applications. This motor features a 4-phase, 5-wire configuration with an integrated reduction gearbox, delivering high torque and precise positioning at low speeds. One of the biggest advantages of a stepper motor is its ability to operate accurately in an open-loop control system, eliminating the need for expensive feedback sensors or encoders. The motor position is precisely controlled by simply counting the input step pulses. The included ULN2003 driver board acts as a signal amplifier, allowing low-power control signals from microcontrollers such as Arduino, Raspberry Pi, ESP32, and 8051 to safely drive the stepper motor. The driver board also features four LED indicators (A, B, C, D) that display the working status of each phase in real time, making testing and debugging easy. With its compact size, plug-and-play connector, stable operation, and high reliability, this stepper motor kit is ideal for robot arms, CNC projects, camera sliders, 3D mechanisms, automation systems, and educational electronics projects. ⭐ KEY FEATURES ✔ 28BYJ-48 Mini Geared Stepper Motor – 5V DC✔ 4-Phase, 5-Wire Configuration✔ Includes ULN2003 Stepper Motor Driver Board✔ Open-Loop Precise Control – No encoder required✔ Built-in Gear Reduction for Higher Torque✔ Plug-and-Play Interface – Easy connection✔ Phase LED Indicators on driver board✔ Compact size, lightweight & reliable✔ Perfect for Arduino, robotics & automation projects 🔧 TECHNICAL SPECIFICATIONS Stepper Motor Model: 28BYJ-48 Supply Voltage: 5V DC (commonly used version) Number of Phases: 4 Wires: 5 Stride Angle: 5.625° × 1/64 (with gearbox) Gear Reduction Ratio: 1:64 (approx.) Dimensions: 44 × 44 × 28 mm (L × B × H) Type: Geared Stepper Motor Driver Board Driver Model: ULN2003 Input Interface: Standard 5-pin connector Indicators: 4 Phase LED status indicators Function: Signal amplification & motor driving 🎯 APPLICATIONS Arduino & microcontroller projects Robotics & automation systems Camera sliders & pan-tilt systems CNC & 3D motion mechanisms Educational electronics kits Smart home & IoT projects 📦 PACKAGE INCLUDES 1 × 28BYJ-48 5V Stepper Motor 1 × ULN2003 Stepper Motor Driver Board
Vibration sensor module alarm Motion sensor module vibration switch SW-420
[Vibration Sensor] Vibration sensor module alarm Motion sensor module vibration switch SW-420 module based on the vibration sensor SW-420 and Comparator LM393 to detect if there is any vibration that beyond the threshold. The threshold can adjust using an onboard potentiometer. When this no vibration, this module output logic LOW the signal indicates LED light, and vice versa. If the module does not vibrate, the vibration switch was on the close state, the output of low output, the green indicator light. The product vibrates, vibration switches momentary disconnect, the output is driven high, the green light does not shine. The output can connect to the microcontroller, which to detect high and low level; so as to detect whether the environment exists vibration, play a role in the alarm. Note: Do not reverse the power directions, otherwise, it is possible to burn the chip. Signal LED light is output Low, signal LED OFF output is High. The output level close to the input voltage. Features : Using SW-420 normally closed type vibration sensor. Comparator output, clean signal, good waveform, strong driving ability, >15mA. Using a wide voltage LM393 comparator. With bolt holes for easy installation. Package Includes : 1 x Vibration sensor module alarm Motion sensor module vibration switch SW-420.
250W High Power Constant voltage Current Adjustable Aluminum Substrate LED Driver Module
[Step UP Buck Converter] The 250W High Power DC-DC Boost Converter with Constant Voltage & Constant Current Control is a versatile and efficient power module designed for demanding applications such as LED driving, battery charging, and power supply systems. Built on an aluminum substrate for superior heat dissipation, this module ensures stable performance even under high load conditions. It supports adjustable output voltage (10V–50V) and current control up to 6A (10A peak), making it ideal for precision applications. With high efficiency up to 96%, premium components, and dual potentiometer control, this module delivers reliable and customizable power output for both hobbyists and professionals. Key Features ⚡ High Power Output (Up to 250W)Supports high-power applications with stable voltage and current control. 🔧 Adjustable Voltage & CurrentFine-tune output using onboard multi-turn potentiometers for accurate control. 🔥 Aluminum Substrate Heat DissipationIntegrated heat sink design ensures continuous operation under heavy load. 📈 High Efficiency (92%–96%)Minimizes power loss and improves system performance. 🧠 Stable Constant Current OutputLow temperature drift (<1%) ensures reliable performance for LED applications. 🔌 Wide Application SupportSuitable for LED drivers, battery charging, solar systems, and DIY power supplies. Specifications Specification Description Module Type Non-Isolated Boost Converter Output Voltage 10V – 50V (Adjustable) Output Current Up to 6A (10A peak) Constant Current Range 0.2A – 6A Output Power Up to 250W Efficiency 92% – 96% Input Voltage 10V – 40V Static Current 10mA Mounting 4 × 3mm Screw Holes Cooling Aluminum Substrate Applications 💡 High Power LED Driver🔋 Battery Charging (Li-ion, Lead Acid, etc.)☀️ Solar Power Regulation🚗 Vehicle Power Supply Systems🔧 DIY Adjustable Power Supply💻 Laptop & Portable Device Power Usage Instructions Connect VIN+ / VIN- to input power supply Connect OUT+ / OUT- to load Adjust RV1 (Voltage) as per requirement Adjust RV2 (Current) based on load ⚠️ Always set voltage/current before connecting load Precautions Do not reverse input/output polarity Ensure proper heat dissipation at high load Input voltage must be at least 2V lower than output Avoid exceeding maximum current/power limits Do not adjust current using short circuit method Package Includes 1 × 250W High Power DC-DC Boost Converter Constant Voltage & Current Module
USB QC3.0 QC2.0 DC to DC Buck Converter Charging Module Fast Quick Charger
[Step Down Buck Converter] This module accepts a 6-24V Input and supports USB QC3 Charging on the output. It takes care of regulating the signals on the USB Data transer lines and offers fast charging when a compatible device is connected. Great for adding USB charging in your next project. Supports: QC2.0, QC3.0, MTK PE1.1/2.0, FOR Apple, FOR Samsung AFC,FOR Huawei FCP, FOR Spreadtrum SFCP Input voltage: DC 6~30V Output voltage: default 5V, adjust range 3~12V according to fast charging protocol Output capacity: single-port rated current 2.4A, Rated power 24W Protection measures: Output overvoltage protection, limit the output voltage does not exceed 13V (in the case of chip failure); input with a fuse. This mini DC-DC step-down voltage converter module supports 6-24V voltage input and 5V 3A output with input polarity reverse protection and output overvoltage protection, short circuit protection. It adopts synchronous rectification technology to ensure ultra-high power conversion up to 97.5% to take full use of your input power. On-board female type A USB port with identification circuit perfectly fit for smartphones as well as it can be useful to power or recharge any electronic gadget which required 5V input power up to 3A Features: Non-isolated buck module (BUCK) synchronous rectification Maximum Output Current: 3A MAX Conversion efficiency: can up to 97.5% (6.5V step down to 5V 0.7A) (after short reverse protection and fuses test value) Switch frequency: 500KHz Output Ripple: 10mV around (12V to 5V3A) 20M bandwidth Output indicator: The output voltage indicator is red Operating temperature: Industrial grade (-40 to + 85 ) (the higher the ambient temperature, the lower the output power) Output overvoltage protection: Yes, input 1.5A fuse, output 5V have 300W TVS tube clamp protection. Flat copper inductor, improve conversion efficiency With output overvoltage protection. There is a 1.5A fuse, output 5V have 300W TVS tube protect your USB device High-quality USB port Output voltage indicator (RED) Small size, Compact Size Input with reverse polarity protection diode, will not damage when input connect incorrectly Ultra-low static current, 0.85 mA only. Do not need to add switch when connected to the car battery, can be connected to car cigarette lighter cable or ACC power supply cable Ultra-small size, 26.4 (L) * 15 (W) * 7.4 (H) mm Input voltage range: 6V-32V Output voltage: default 5V, automatically adjust between 3-12V after triggering fast charge Output power: up to 24W (5V/3.4A, 9V/2.5A, 12V/2A, etc.) Output voltage cable compensation function Conversion efficiency: 90%-97% Support multiple fast charging protocols Input overvoltage and undervoltage protection Input overcurrent protection Output overcurrent, short circuit protection Machine over temperature protection Support fast charge agreement Support DCP protocol, BC1.2, Apple, Samsung protocol Support Huawei Fast Charge Protocol FCP/SCP Support Huawei Fast Charge Protocol AFC Support Spreadtrum Fast Charge Protocol SFCP · Support Qualcomm QC2.0 and 3.0 Support MTK PE1.1/PE2.0 Precautions: please enhance heat dissipation when fully used for load output(i.e. 5V@3A with 24V Input). For the ideal case (i.e. 5V@2A output with 12V Input) it does not need to enhance heat dissipation. Applications: Solar panel to mobile phone charging Car charging retrofit Driving recorder power supply Home power supply, smart plug modification Fast charge adapter Package Includes: 1 x USB Step Down DC-DC Converter Module
Out of stockIC 74HC32 Quad 2-Input/Gate Dip
[Logic Gates IC] The ACT32 is an advanced high-speed CMOS QUAD 2-INPUT OR GATE fabricated with sub-micron silicon gate and double-layer metal wiring C2 MOS technology. It is ideal for low power applications maintaining high-speed operation similar to equivalent Bipolar Schottky TTL. The internal circuit is composed of 2 stages including buffer output, which enables high noise immunity and stable output. The device is designed to interface directly with High-Speed CMOS systems with TTL, NMOS, and CMOS output voltage levels. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. Features: HIGH SPEED: tPD = 4.5 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 4 µA (MAX.) at TA = 25 C COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN), VIL = 0.8V (MAX) 50Ω TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH|=IOL =24 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 32 IMPROVED LATCH-UP IMMUNITY Package Includes: 1 x 74ACT32 Dip IC Product Images are shown for illustrative purposes only and may differ from actual product.
Out of stockMagnetic Reed Switch Sensor Module
[Magnetic Sensor] Magnetic Control Module Reed Switch Sensor This module can be applied in Program-controlled switches, copiers, washing machines, refrigerators, cameras, Disinfection cabinets, doors, window magnetic, electromagnetic relays, electronic weighing, level meters, gas meters, water meters, and so on. Specifications and Features: Clean, good waveform driving ability, more than 15mA. Working voltage 3.3V-5 Output format: digital switching output (0 and 1) A fixed bolt hole for easy installation PCB size: 3.2cm x 1.4cm Digital output using a voltage LM393 comparator IC Package Includes: 1 x Reed Switch Module
Out of stock8 Bit WS2812 5050 RGB LED Built-in Full Color Driving Lights Circular Development Board
[RGB LED Strip] Outer Diameter: 32 mm. Supply Voltage: DC 4-7V. LED Driver IC: WS2812 Communication interface: single wire communication. Send data at speeds of 800Kbps. The color of the light was highly consistent Full-color module, Full-color soft lights a lamp strip. The 8Bit WS2812 5050 RGB LED Built-in Full Color Driving Lights Circular Development Board has round black shape, let us be clear at a glance! 8 super bright smart NeoPixels LED arranged in a 28mm outside diameter circular PCB. These ring RGB lamps can be simply connected via the output pin cascade one to the other’s input pin (DI-DO). In this way, by using only one single chip you will be able to control as many LED lights as possible, each LED lamp is integrated with a driver chip in it so that our LED becomes intelligent and addressable. Each has a -18mA constant current drive, so the LED color will be very uniform, even if the voltage change is the same, do not need an external resistor current limiting resistor to make the overall design of the RGB lamp ring to become slim, as you see so simple and easy to use. With 5V power supply to drive the RGB lamp ring. Characteristic : Single wire communication, to maximize the reduction of I/O port pressure, and the use of the RGB WS2812B driver chip, so that the peripheral circuit requires only a single capacitor can meet the needs of the circuit, give people the enjoyment of beauty, in addition, this RGB ring, but also through a simple Dout input port, and the other using the same chip RGB lamp cascade, without need considering the shape of the limit. Features : The control circuit and the LED share the only power source. Control circuit and RGB chip are integrated into a package of 5050 components, form a complete control of pixel point. Built-in signal reshaping circuit, after wave reshaping to the next driver, ensure wave-form distortion not accumulate. Built-in electric reset circuit and power lost reset circuit. Each pixel of the three primary colors can achieve 256 brightness levels, or 16M colors full-color display, and scan frequency not less than 400Hz/s. Cascading port transmission signal by a single line. Any two points the distance more than 5m transmission signal without any increase circuit. When the refresh rate is 30fps, cascade number is not less than 1024 points. Send data at speeds of 800Kbps. The color of the light was highly consistent Full-color module, Full-color soft lights a lamp strip. LED decorative lighting, Indoor/outdoor LED video irregular screen. Package Includes : 1 x 8Bit RGB Lamp Ring Development Board
Out of stock24 Bit WS2812 5050 RGB LED Built-in Full Color Driving Lights Circular Development Board
[RGB LED Strip] The 24 Bit WS2812 5050 RGB LED Built-in Full Color Driving Lights Circular Development Board has round black shape, let us be clear at a glance! 24 super bright smart NeoPixels LED arranged in a 86mm outside diameter circular PCB. These ring RGB lamps can be simply connected via the output pin cascade one to the other’s input pin (DI-DO). In this way, by using only one single chip you will be able to control as many LED lights as possible, each LED lamp is integrated with a driver chip in it so that our LED becomes intelligent and addressable. Each has a -18mA constant current drive, so the LED color will be very uniform, even if the voltage change is the same, do not need an external resistor current limiting resistor to make the overall design of the RGB lamp ring to become slim, as you see so simple and easy to use. With 5V power supply to drive the RGB lamp ring. Characteristic : Single wire communication, to maximize the reduction of I/O port pressure, and the use of the RGB WS2812B driver chip, so that the peripheral circuit requires only a single capacitor can meet the needs of the circuit, give people the enjoyment of beauty, in addition, this RGB ring, but also through a simple Dout input port, and the other using the same chip RGB lamp cascade, without need considering the shape of the limit. Features : The control circuit and the LED share the only power source. Control circuit and RGB chip are integrated into a package of 5050 components, form a complete control of pixel point. Built-in signal reshaping circuit, after wave reshaping to the next driver, ensure wave-form distortion not accumulate. Built-in electric reset circuit and power lost reset circuit. Each pixel of the three primary colors can achieve 256 brightness levels, or 16M colors full-color display, and scan frequency not less than 400Hz/s. Cascading port transmission signal by a single line. Any two points the distance more than 5m transmission signal without any increase circuit. When the refresh rate is 30fps, cascade number is not less than 1024 points. Send data at speeds of 800Kbps. The color of the light was highly consistent Full-color module, Full-color soft lights a lamp strip. LED decorative lighting, Indoor/outdoor LED video irregular screen. Package Includes : 1 x 24 Bit WS2812 5050 RGB LED Built-in Full Color Driving Lights Circular Development Board
WS2812B 4×4 RGB LED Module
[LED/LCD Display Module] The WS2812B 4 x 4 RGB LED Module has built-in Full-Color Driving Lights Circular Development Board, and a round black shape. 16 super bright smart Neo Pixels LED arranged in a 68mm outside diameter circular PCB. These ring RGB lamps can be simply connected via the output pin cascade one to the other’s input pin (DI-DO). In this way, by using only one single chip you will be able to control as many LED lights as possible, each LED lamp is integrated with a driver chip in it so that our LED becomes intelligent and addressable. Each has a -18mA constant current drive, so the LED color will be very uniform, even if the voltage change is the same, do not need an external resistor current limiting resistor to make the overall design of the RGB lamp ring to become slim, as you see so simple and easy to use. With a 5V power supply to drive the RGB lamp ring. Single wire communication, to maximize the reduction of I/O port pressure, and the use of the RGB WS2812B driver chip, so that the peripheral circuit requires only a single capacitor can meet the needs of the circuit, give people the enjoyment of beauty, in addition, this RGB ring, but also through a simple Dout input port, and the other using the same chip RGB lamp cascade, without need considering the shape of the limit. Features : The control circuit and the LED share the only power source. The control circuit and RGB chip are integrated into a package of 5050 components, form a complete control of pixel points. Built-in signal reshaping circuit, after wave reshaping to the next driver, ensure wave-form distortion not accumulate. Built-in electric reset circuit and power lost reset circuit. Each pixel of the three primary colors can achieve 256 brightness levels, or 16M colors full-color display, and scan frequency not less than 400Hz/s. Cascading port transmission signal by a single line. Any two points the distance more than 5m transmission signal without any increase circuit. When the refresh rate is 30fps, the cascade number is not less than 1024 points. Send data at speeds of 800Kbps. The color of the light was highly consistent Full-color module, Full-color soft lights a lamp strip. LED decorative lighting, Indoor/outdoor LED video irregular screen. Package Includes : 1 x WS2812B 4 x 4 RGB LED Module.
XL4015 5A DC-DC POWER SUPPLY MODULE LED WITH HEATSINK.
[Step Down Buck Converter] The XL4015 5A DC-DC Step Down Adjustable Power Supply Buck Module is a 180 KHz fixed frequency PWM buck (step-down) DC/DC module, capable of driving a 5A load with high efficiency, low ripple, and excellent line and load regulation. This product is a 180 kHz fixed frequency PWM buck (step-down) DC/DC module, capable of driving a 5A load with high efficiency, low ripple, and excellent line and load regulation. The DC/DC buck module has applications where the input voltage is higher than the output voltage, such as battery, power transformer, DIY adjustable regulated power supply, LCD Monitor and LCD TV portable instrument power supply telecom/networking equipment, 24V vehicle notebook power supply, industrial equipment buck. This module has an adjustable output Voltage. Also works as a dedicated charger for Lithium Batteries (Li-Ion, LiPo) as it is capable of controlling voltage. Ex. 12V buck to 3.3V, 12V buck to 5V, 24V buck to 5V,24V buck to 12V, 36V buck to 24V, etc. Features : High efficiency up to 96% The built-in thermal shutdown function Built-in current limit function In-Built output short protection function Input reverse polarity protection: None (if required, the high current diode in series with the input). Input voltage range: 4V-38V DC Output voltage range: 1.25V-36V DC adjustable. Output current: 0-5A. Output power: 75W. High efficiency up to 96% The built-in thermal shutdown function Built-in current limit function In-Built output short protection function Package Includes : 1 x XL4015 5A DC-DC Step Down Adjustable Power Supply Buck Module 1 x Aluminium Heat Sink
Out of stock2 Channel 5V Relay Module
[Relay Module] This is a 2 Channel 5V Relay module, be able to control various appliances, and other equipment with large current. It can be controlled directly by Microcontroller (8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).5V 2-Channel Relay interface board and each one needs 15-20mA Driver Current Equipped with high-current relay, AC250V 10A; DC30V 10A Standard interface that can be controlled directly by microcontroller (8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) Indication LEDs for Relay output status. Features: The module using Single relay control. AC voltage 250V, AC current 10A, maximum DC voltage 30V DC current maximum 10A. Power indicator (green), Two ways of relay status indicator light (red). Using 8550 transistor-driven, strong driving ability. Has the fixed bolt hole and easy installation. Package Includes: 1 x 5V 2 Channel Relay Module. Specifications :- Operating Voltage (VDC) 2.5 ~ 5.5 Trigger Voltage (VDC) 5 Trigger Current (mA) 20 Switching Voltage (VAC) 250@10A Switching Voltage (VDC) 30@10A Operating Temperature (C) -40 to 85 Opt. Relative Humidity(RH) 20% 85% Storage condition () 65 to 125 Length (mm) 43 Width (mm) 43 Height (mm) 17 Weight (gm) 25
12V PCB Mount Sugar Cube SPDT Relay – 5 Pin 7A
[Relays] 12V PCB Mount Sugar Cube SPDT Relay – 5 Pin 7A The 12V PCB Mount Sugar Cube SPDT Relay is a compact Single Pole Double Throw (SPDT) electromagnetic relay designed for switching AC or DC loads using a microcontroller, sensor, control circuit, or other low-power trigger source. Despite its small size, this relay can be used to control loads up to 7A at 250V AC according to the provided specifications. The relay operates with a 12V DC coil and has a coil resistance of approximately 270Ω, with a nominal coil current of around 45mA. Its compact PCB-mount design makes it suitable for use in automation systems, switching circuits, security systems, control panels, DIY electronics, and embedded projects. The relay features 5 pins: two coil terminals, COM (Common), NO (Normally Open), and NC (Normally Closed). The COM terminal is switched between NO and NC when the relay coil is energized or de-energized. ⭐ Key Features SPDT (Single Pole Double Throw) relay 12V DC coil Compact Sugar Cube design PCB mounting type 5-pin configuration Coil resistance: approximately 270Ω Nominal coil current: approximately 45mA Suitable for switching AC and DC loads Maximum AC load: 7A @ 250/125V AC Compact and easy to install Suitable for microcontroller and sensor-controlled switching Useful for automation and control applications 📋 Technical Specifications Product Type: PCB Mount Relay Relay Type: SPDT Contact Configuration: 1 Form C Number of Pins: 5 Coil Voltage: 12V DC Trigger Voltage: 12V DC Coil Resistance: 270Ω Trigger / Nominal Coil Current: Approximately 45mA Maximum AC Load Current: 7A @ 250/125V AC Maximum DC Load Current: 10A @ 24/120V DC as specified Operating Time: 10ms Release Time: 5ms Mounting Type: PCB Mount Contact Terminals: COM / NO / NC Coil Terminals: Coil End 1 / Coil End 2 🔌 Pin Configuration Coil End 1: One terminal of the 12V DC relay coil Coil End 2: Other terminal of the 12V DC relay coil COM: Common contact connected to the load circuit NO: Normally Open contact NC: Normally Closed contact When the relay coil is not energized, COM is connected to NC. When the 12V DC coil is energized, the internal contact switches from NC to NO. 🛠️ How It Works Connect the relay coil terminals to a suitable 12V DC control supply. When the coil is energized, the internal contact changes state and switches the connected load between the NC and NO terminals. For an NC connection, the load can remain connected before the relay is triggered. For an NO connection, the load remains disconnected until the relay coil is energized. The relay allows a low-power control circuit such as a microcontroller, sensor, timer, or automation controller to control a higher-current electrical load. 🔧 Applications Microcontroller Projects Arduino Projects Sensor-Controlled Switching Home Automation Security Systems Switching Circuits Motor Control Lighting Control Fan Control PCB Control Boards Embedded Electronics Industrial Control Systems DIY Electronics Projects 📦 Package Includes 1 × 12V PCB Mount Sugar Cube SPDT Relay – 5 Pin ⚠️ Precautions Use a 12V DC supply for the relay coil. Do not exceed the specified contact voltage and current ratings. Ensure correct identification of COM, NO, NC, and coil terminals before wiring. Use suitable protection circuitry when driving the relay coil from sensitive electronic circuits. For inductive loads such as motors and solenoids, use appropriate suppression/protection components. Ensure proper PCB insulation and clearance when switching mains voltage. Disconnect power before changing or modifying wiring. Do not touch exposed mains-voltage terminals during operation. ally Open) then the load remains OFF before trigger. These relays are usually used in home automation, switching circuits, securi