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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
AMD Ryzen 7 5800X3D Processor 10th Anniversary Edition with Carbice Ice Pad
[Processor] AMD Ryzen 7 5800X3D Processor 10th Anniversary Edition with Carbice Ice Pad The legendary gaming champion for socket AM4, featuring revolutionary AMD 3D V-Cache technology with a massive 96MB of L3 cache. This special 10th Anniversary Edition includes an ultra-high performance Carbice carbon-nanotube thermal Ice Pad for maximum heat transfer. ⭐ Key Features - 8 Cores and 16 Threads powered by Zen 3 architecture - 96MB of 3D V-Cache (100MB Total Cache) - Dramatically boosts gaming frame rates over standard Zen 3 CPUs - Includes authentic Carbice Ice Pad thermal interface material - Drops directly into existing AM4 motherboards with a BIOS update - Unlocked for memory tuning and precision boost undervolting 📋 Technical Specifications - Socket: AM4 - Core Count: 8 - Thread Count: 16 - Base Clock: 3.4 GHz - Boost Clock: Up to 4.5 GHz - L3 Cache: 96 MB - TDP: 105W - PCIe Version: PCIe 4.0 - Memory Support: DDR4-3200 (Supports higher via XMP/DOCP) 🎯 Applications - Ultimate AM4 gaming upgrade without replacing motherboard or RAM - Competitive simulation games (Microsoft Flight Sim, Assetto Corsa, Factorio) - High-FPS competitive esports 📦 Package Includes - 1 x AMD Ryzen 7 5800X3D Processor - 1 x Carbice Ice Pad Thermal Interface - 1 x 10th Anniversary Collector Badge & Certificate
Only 1 leftHookup Wires (Red & Black, 100m each)
Red & Black set, 100 meters each.
Almirah Wardrobe Switch – 250V AC 6A Momentary Push-to-Off Switch
[Mechanical Switches] Almirah Wardrobe Switch – 250V AC 6A Momentary Push-to-Off Switch The Almirah Switch is a compact single-pole momentary push-to-off switch designed for use in almirahs, cupboards, wardrobes, cabinets, and furniture lighting applications. It provides instantaneous switching action and is suitable for applications where an electrical circuit needs to be switched according to the opening or closing of a cabinet or door. The switch features a high-grade polycarbonate body and brass contacts, providing reliable electrical conduction and durability for regular use. Its compact design is intended to fit standard almirah cutouts and supports panel or surface mounting with screw-type wire terminals. With a rating of 250V AC and 6A, an IP20 protection level, and a mechanical life of more than 10,000 operations, this switch is suitable for indoor furniture and cabinet applications. ⭐ Key Features 250V AC rated voltage 6A current rating Single-pole design Momentary push-button operation Push-to-Off action Instantaneous response High-grade polycarbonate construction Brass electrical contacts Compact design for standard almirah cutouts Panel or surface mounting Screw-type wire terminals Glossy white finish Mechanical life of >10,000 operations IP20 protection RoHS compliant 📋 Technical Specifications Product Type: Almirah Switch Switch Type: Momentary Actuator Type: Push Button Circuit Type: Single Circuit Number of Poles: Single Pole Rated Voltage: 250V AC Maximum Voltage: 250V AC Current Rating: 6A Maximum Current: 6A Response Time: Instantaneous Automation Grade: Manual Material: High-Grade Polycarbonate Contact Material: Brass Wire Terminal: Screw-Type Mounting Type: Panel / Surface Mount Protection Level: IP20 Finish Type: Glossy Color: White Operating Temperature: -10°C to +50°C Temperature Range: -10°C to +50°C Mechanical Life: >10,000 Operations Insulation Resistance: 100MΩ Minimum @ 500V DC Contact Resistance: 50mΩ Stroke: Standard Push-to-Off Action Size: Compact; fits standard almirah cutout Weight: Approximately 20g Number of Modules: Single Module UV Stabilized: Normal RoHS Compliance: Yes 🔌 Operation The switch provides a push-to-off momentary action. It is designed for applications where the switch operates automatically through the physical movement of a cupboard, wardrobe, almirah, or cabinet door. 🔧 Applications Almirah Lighting Cupboard Lighting Wardrobe Lighting Cabinet Lighting Furniture Lighting Storage Cabinet Applications Office Cabinets Home Furniture Control Panels Indoor Electrical Applications 🛠️ Installation The switch can be installed using its panel or surface mounting arrangement. Fit the switch into a suitable cutout and secure it firmly. Connect the wires to the screw-type terminals with the power supply switched off during installation. 📦 Package Includes 1 × Almirah Switch – White, 250V AC 6A ⚠️ Precautions Disconnect the power supply before installation or wiring. Do not exceed the 250V AC / 6A rating. Ensure screw terminals are tightened securely. Use suitable wiring for the connected load. Intended primarily for indoor applications. IP20 protection does not provide waterproof protection. Do not use in wet or exposed outdoor environments. Replace the switch if contacts become damaged or operation becomes unreliable. ❓ Frequently Asked Questions Q: What is the voltage and current rating?A: The switch is rated for 250V AC and 6A. Q: What type of switch is it?A: It is a single-pole momentary push-to-off switch. Q: Where can it be installed?A: It is designed for almirahs, cupboards, wardrobes, cabinets, and similar furniture applications. Q: What material is used for the switch?A: The body is made from high-grade polycarbonate, with brass contacts. Q: What is the mechanical life?A: The supplied specification states a mechanical life of more than 10,000 operations.
3V 100mA LED Filament 45mm COB Edison Bulb Filament
[COB LED] The 3V 100mA LED Filament 45mm is a flexible COB LED light source designed for decorative lighting, Edison bulb restoration, DIY lamps, and creative illumination projects. Available in a variety of colors, it delivers bright and uniform light output while maintaining low power consumption. In addition, the filament provides 360-degree illumination, closely replicating the appearance of traditional Edison-style incandescent filaments. As a result, it is widely used in decorative bulbs, custom lighting fixtures, model lighting, art installations, and creative electronics projects. Because of its flexible substrate design, the filament can be slightly bent to fit custom enclosures and unique lighting arrangements. Furthermore, it produces minimal heat during operation, making it safe for compact and enclosed lighting applications. The advanced COB LED structure ensures consistent brightness, excellent efficiency, and long service life. Moreover, the solderable metal terminals allow quick integration into DIY electronics and lighting projects. 🔹 Key Features Available in multiple colors Bright and uniform light output COB LED filament design Low power consumption Excellent energy efficiency Minimal heat generation 360° illumination pattern Lightweight and compact structure Easy solderable metal terminals Long operational life 🔹 Technical Specifications Product Type: COB LED Filament Operating Voltage: 2.8V to 3.2V DC Rated Voltage: 3V DC Forward Current: 100mA (Maximum) Power Consumption: Approximately 0.3W Brightness: Approximately 80–100 Lumens per Watt Filament Type: COB (Chip-on-Board) LED Filament Base Material: Flexible Polymer Substrate Connection Type: Solderable Metal End-Caps led Length: 45mm Total Length: 55mm Filament Diameter: Approximately 2.0mm Terminal Size: Approximately 2mm × 2mm Weight: Less than 1g Available Colors: Warm White, Cool White, Red, Blue, Green (subject to availability) 🔹 Mechanical Specifications Filament construction Durable polymer substrate Highly resistant to mechanical shock Lightweight design Easy soldering connection terminals Suitable for custom lamp and lighting assemblies 🔹 Applications This LED filament is suitable for: Edison bulb repair and replacement Decorative LED lamps Custom lighting fixtures Battery-powered lighting projects Art installations Scale models and dioramas Display and showcase lighting Wearable electronics DIY electronics projects Creative lighting applications 🔹 Package Includes 1 × 3V 100mA LED Filament 38mm (Selected Color)
Black Latching Mini ON/Off Switch Self-Lock Micro Push Button Switch DC 30V 1A for Light Lamp Wall Outlet DIY SMD Flashlight
[Mechanical Switches] The Black Oval Self-Lock Tactile Switch is a compact and durable push button switch designed for low-voltage electronic control applications. It features a self-locking ON/OFF mechanism, allowing the switch to remain in position until pressed again. In addition, the switch uses an SPST (Single Pole Single Throw) configuration for simple and reliable switching operation. As a result, it is suitable for portable electronic devices, LED lighting systems, flashlights, and DIY electronics projects. Because of its compact oval-shaped design, the switch fits easily into small electronic enclosures and space-limited devices. Furthermore, the durable internal mechanism ensures stable operation and long service life. The switch is rated for 1A at 30V DC, making it ideal for battery-powered circuits and low-power applications. Moreover, the tactile push operation provides smooth switching feedback during use. This self-lock tactile switch is commonly used in flashlights, portable devices, DIY electronics, LED control systems, and electronic repair projects. 🔹 Key Features Oval-shaped self-lock tactile switch SPST switching configuration Push ON / Push OFF operation Compact and lightweight design Durable and long-lasting construction Smooth tactile switching response Suitable for low-voltage DC applications Easy installation for DIY projects 🔹 Technical Specifications Product Type: Self-Lock Tactile Switch Switch Shape: Oval Operation Type: Self-Locking Switching Mode: Push ON / Push OFF Contact Configuration: SPST Rated Voltage: 30V DC Rated Current: 1A Switch Dimensions: 12mm × 8mm Plate Length: 8mm Insulation Resistance: 100MΩ Operating Force: 2.55 ± 0.69N Body Material: Plastic + Metal Button Color: Black 🔹 Applications This tactile push switch is suitable for many electronic applications, including: LED flashlights DIY electronics projects Portable electronic devices LED lighting systems Small control circuits Electronic repair projects Battery-powered devices Low-voltage switching systems 🔹 Package Includes 1 × Black Oval Self-Lock Tactile Push Button Switch
5V 100mA 0.5W Mini Solar Panel 70x70mm Polycrystalline DIY Solar Cell Charger
[Solar Panel] The 5V 100mA 0.5W Mini Solar Panel is a compact and efficient photovoltaic module designed for small solar power applications and DIY renewable energy projects. Made using high-quality polycrystalline silicon, this solar panel converts sunlight into usable electrical energy with reliable performance. In addition, the panel delivers a stable 5V output with up to 100mA current, making it suitable for charging small batteries, powering low-power devices, and educational electronics projects. As a result, it is widely used in portable solar applications, science experiments, and DIY electronic systems. Because of its lightweight and compact design, the panel can be easily installed in limited spaces. Furthermore, the durable epoxy surface improves protection against moisture and environmental conditions, helping ensure long-term outdoor use. The solar panel features excellent low-light performance and high conversion efficiency for improved energy generation. Moreover, the exposed copper connection pads allow easy soldering and quick integration into custom electronic projects. This mini photovoltaic panel is commonly used in solar DIY kits, battery chargers, garden lighting, educational projects, portable electronics, and renewable energy systems. 🔹 Key Features High-efficiency polycrystalline solar panel Stable 5V output voltage Lightweight and compact design Excellent low-light performance Durable epoxy-coated surface Easy soldering connection pads Waterproof and long-lasting structure Suitable for DIY and educational projects 🔹 Technical Specifications Product Type: Mini Solar Panel Material: Polycrystalline Silicon Output Voltage: 5V Output Current: 0–100mA Rated Power: 0.5W Dimensions: 70mm × 70mm × 3mm Surface Type: Epoxy Coated Connection Type: Copper Tape Pads Application Type: Solar Charging / DIY Projects 🔹 Applications This mini solar panel is suitable for many applications, including: DIY solar projects Small battery charging Educational electronics kits Portable solar devices Garden lighting systems Renewable energy experiments Low-power electronics projects 🔹 Package Includes 1 × 5V 100mA 0.5W Mini Epoxy Solar Panel
TP4056 1A Li-Ion Lithium Battery Charging Module with Micro USB 3.7V Charger Board
[Li-ion Rechargeable Battery Charger, Lithium Battery Protection Board] The TP4056 1A Li-Ion Lithium Battery Charging Module – Micro USB is a compact and efficient charging board designed for charging single-cell 3.7V lithium-ion and lithium polymer batteries. It features an onboard Micro USB connector, allowing direct charging from USB power sources such as computers, adapters, and power banks. In addition, the module supports external power input through the IN+ and IN- pads, making it suitable for custom battery charging applications and DIY electronics projects. As a result, users can easily integrate the module into portable devices and battery-powered systems. Because of its compact size and lightweight design, the TP4056 module is ideal for space-limited applications. Furthermore, the onboard charging management IC provides stable charging performance with high accuracy and reliable battery protection. The charging current is set to 1A by default, but it can also be adjusted by changing the onboard programming resistor. Moreover, the module includes dual LED indicators for charging status and full-charge indication. This charging module is widely used in power banks, DIY battery chargers, portable electronics, IoT devices, robotics systems, and rechargeable battery projects. 🔹 Key Features TP4056 lithium battery charging IC Onboard Micro USB input interface Suitable for 3.7V Li-Ion and LiPo batteries Default 1A charging current Adjustable charging current support Dual LED charging status indicators Compact and lightweight design High charging accuracy and stable performance Easy integration into DIY projects 🔹 Technical Specifications Product Type: Lithium Battery Charging Module Charging IC: TP4056 Input Interface: Micro USB Input Voltage: 5V DC Battery Type: 3.7V Li-Ion / LiPo Battery Default Charging Current: 1A Adjustable Current Range: 100mA – 1000mA Charging Method: Constant Current / Constant Voltage Charging Indicators: Charging LED & Full Charge LED Mounting Type: PCB Module Body Material: FR4 PCB 🔹 Applications This TP4056 charging module is suitable for many electronic applications, including: DIY power banks Rechargeable battery projects Portable electronics Robotics systems IoT devices Battery charging circuits Arduino projects DIY electronics projects 🔹 Package Includes 1 × TP4056 1A Li-Ion Lithium Battery Charging Module – Micro USB
TC4056 Type-C 1A Lithium Battery Charging Module 5V USB-C 3.7V Li-ion LiPo Charger Board
[Li-ion Rechargeable Battery Charger, Lithium Battery Protection Board] Product Description The TC4056 Type-C Lithium Battery Charging Module is a compact, efficient, and reliable solution for charging 3.7V lithium-ion and lithium polymer batteries. Designed with a modern USB Type-C input, this module ensures easy compatibility with standard chargers and power sources. It uses a proven CC/CV (Constant Current / Constant Voltage) charging algorithm, which ensures safe charging, longer battery life, and stable performance. The module is ideal for DIY electronics, power banks, portable devices, and embedded systems. With intelligent charging management, automatic cut-off, and pre-charge functionality, the TC4056 module provides complete protection and efficient charging for your batteries. ⚡ Key Features 🔋 Safe & Efficient CC/CV ChargingProvides stable and optimized charging for lithium batteries. 🔌 Type-C USB InputEasy to use with mobile chargers, USB adapters, and power banks. ⚡ Stable 1A Charging CurrentDefault charging current of 1A for fast and reliable performance. 🔴🔵 LED Charging Indicators Red LED: Charging Blue LED: Fully Charged 🧩 Compact & Lightweight DesignPerfect for space-constrained and portable applications. 🛠️ Easy IntegrationSimple connections make it beginner-friendly and ideal for DIY use. 🔄 Smart Charging Features 🔋 Automatic Charge TerminationStops charging when current drops to 100mA after full charge, protecting battery health. 🔄 Auto Recharge FunctionCharging restarts automatically when battery voltage falls below 4.05V. 🪫 Pre-Charge ModeWhen battery voltage is below 2.9V, the module charges safely at 100mA. 📊 Specifications Specification Description Charging IC TC4056 Input Voltage 5V DC (Type-C USB) Charging Current 1A (default, adjustable) Battery Type 3.7V Li-ion / Li-Po Cut-off Voltage 4.2V Charging Method CC/CV Indicators Red (Charging), Blue (Full) 🔧 Applications 🔋 18650 Battery Charging🔌 DIY Power Banks🔧 Arduino / ESP32 Projects🎮 Portable Electronics💡 Rechargeable LED Projects📦 Backup Power Systems 📦 Package Includes 1 × TC4056 Type-C Lithium Battery Charging Module
Type-C USB 5V 2A Step-Up Boost Converter with USB Charger
[Li-ion Rechargeable Battery Charger, Step UP Buck Converter] Build your own portable power solutions with the Type-C USB 5V 2A Step-Up Boost Converter Power Bank Module — a compact and efficient charging solution designed for DIY power banks and USB-powered devices. This versatile module supports battery charging and 5V boost output, allowing you to convert battery voltage into a stable 5V USB output for powering smartphones, microcontrollers, and other USB devices. Equipped with a Type-C input, high-efficiency boost circuit, and intelligent power management, this module ensures reliable performance, fast charging, and safe operation. It also supports simultaneous charging and discharging, making it perfect for uninterrupted power supply applications. Key Features 🔋 2-in-1 Charging + Boost ModuleCharge your lithium battery while simultaneously providing a stable 5V output. ⚡ Stable 5V 2A OutputDelivers consistent power for USB devices like smartphones, Arduino, ESP32, and more. 🔌 Type-C USB InputModern and widely compatible input for easy charging (5V–5.5V). 🔄 High Efficiency Boost Conversion (Up to 92.5%)Minimizes power loss and improves battery life. 🧠 Smart Power ManagementAutomatically controls charging cycles, output switching, and battery protection. 🔘 External Button Control Support Short press: Turn ON output & display Double press: Turn OFF output 🔧 DIY Friendly DesignIncludes USB-A solder pads for custom builds and integrations. Working Functions 🔹 Auto shutdown when load current < 50mA🔹 Auto stop charging when current drops to 100mA🔹 Auto recharge when battery voltage < 4.1V🔹 Pre-charge mode below 2.8V (180mA safe charging)🔹 Supports charging while discharging Specifications Specification Description Input Voltage 5V – 5.5V (Type-C USB) Charging Cut-off Voltage 4.2V / 4.35V ±0.5% Charging Current 2.4A ±5% Boost Output Voltage 5V – 5.15V Output Current Up to 2A Efficiency Up to 92.5% Output Ripple 100mV Quiescent Current 30µA Material Metal + Plastic Applications 🔋 DIY Power Banks📱 Mobile Charging Projects🔧 Arduino / ESP32 Power Supply🔌 USB Device Power Modules🚗 Portable Electronics🧪 Embedded Systems & Prototyping Package Includes 1 × Type-C USB 5V 2A Step-Up Boost Converter Power Bank Module
BC557 PNP General Purpose Transistor – TO-92-3 Package
[Transistor] BC557 PNP General Purpose Transistor – TO-92-3 Package BC557 PNP General Purpose Transistor 45V 100mA BC557 is a semiconductor device used to amplify or switch electronic signals and electrical power. This transistor composed of semiconductor material usually with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor’s terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. This product is known as BC557, BC557BTA, BC557ATA, BC557BTF, BC557B, BC557C, BC557A, BC557CBK, BC557BBK Features: Low current (max. 100 mA) Low voltage (max. 65 V). Low error voltage Fast switching speed Full-voltage operation High power and current handling capability Features/Specs: Product Type: BJTs – Bipolar Transistors Transistor Polarity: PNP Configuration: Single Collector- Emitter Voltage VCEO Max: 45 V Collector- Base Voltage VCBO: 50 V Emitter- Base Voltage VEBO: 5 V Pd – Power Dissipation: 500 mW Gain Bandwidth Product fT: 100 MHz DC Collector/Base Gain hFE Min: 125 DC Current Gain hFE Max: 125 at 2 mA, 5 V Minimum Operating Temperature: – 65°C Maximum Operating Temperature: + 150°C Mounting Style: Through Hole Package/Case: TO-92-3 Applications: Driver Modules like Relay Driver, LED driver etc.. Amplifier modules like Audio amplifiers, signal Amplifier etc.. Darlington pair Datasheet: BC557 PNP Transistor Package Includes: 1 x BC557 PNP General Purpose Transistor – TO-92-3 Package Note: Product Images are shown for illustrative purposes only and may differ from actual product
Single Side Adhesive Barley Insulation Paper 100mm –1 Meter Sheet
[Insulation Paper] Barley Insulation Paper Sheet is an imported, double-layered insulation material, less than 1 mm thick, and ideal for battery packs. Its green, plain shape comes in roll packaging. Made from pure cellulose, it has excellent electrical properties, making it suitable for various appliances, particularly portable lithium-ion batteries. This versatile insulation sheet provides reliable performance and protection for your battery applications. Features: 1. Reduces Heat Transfers 2. Oil Resistance 3. Moisture Absorptions 4. High Elasticity 5. High Mechanical Strength 6. Enriched with Dielectric Properties Applications: 1. Barley Insulation Paper Self-Adhesive Rolls used for Li-ion battery packs & automatic Cell Paper machines. 2. Barley Insulation Paper Stickers on Li-ion Cell Terminals. 3. Used as Gasket Material in Automobile Industries. Package Includes: 1 x Single Side Adhesive Barley Insulation Paper Roll 100mm – 1 meter
Type-C USB Input High Current 3A Polymer Ternary Lithium Battery Quick Fast Charging Board IP2312 CC/CV Mode 5V To 4.2V
[Lithium Battery Protection Board] Power your projects with the Type-C USB Input 3A Lithium Battery Fast Charging Board (IP2312) — a compact, high-efficiency charging solution designed for 3.7V lithium-ion and lithium polymer batteries. Built around the advanced IP2312 main control chip, this module delivers fast, stable, and intelligent charging using a full CC/CV (Constant Current / Constant Voltage) charging algorithm. It ensures optimal battery health, safety, and performance while supporting high current charging up to 3A, making it ideal for modern DIY electronics and portable power applications. The Type-C input interface provides universal compatibility with standard 5V USB power sources, while onboard indicator LEDs clearly display charging status. ⚠️ Note: Not suitable for 3.2V LiFePO4 (Lithium Iron Phosphate) batteries Key Features ⚡ High Current Fast Charging (Up to 3A)Supports rapid charging for lithium-ion/polymer batteries, reducing charging time significantly. 🔋 Advanced CC/CV Charging TechnologyEnsures safe and efficient charging with automatic switching between charging stages. 🔌 Type-C USB InputModern and widely compatible input interface (4.5V–5.5V), easy to power from adapters, power banks, or USB ports. 🧠 Smart Charging Management (IP2312 Chip)Automatically adjusts charging mode based on battery voltage for maximum safety and efficiency. 🔴🔵 LED Status Indicators Red LED: Charging in progress Blue LED: Fully charged 🛠️ Compact & Easy IntegrationSmall size makes it perfect for embedded systems, DIY battery packs, and portable devices. Charging Working Principle 🔹 Trickle Charging Mode (< 3V)When battery voltage is below 3V, the module charges with a safe low current (~100mA). 🔹 Constant Current Mode (> 3V)Once voltage exceeds 3V, it switches to constant current charging (up to 3A). 🔹 Constant Voltage Mode (~4.2V)As the battery approaches full charge, it maintains voltage while gradually reducing current. 🔹 Auto Cut-Off & Recharge Charging stops when current drops below 300mA Automatically resumes charging if voltage drops below 4.1V Specifications Specification Description Main Chip IP2312 Charging Mode CC/CV (Constant Current / Voltage) Input Voltage 4.5V – 5.5V (Type-C USB) Charging Current Up to 3A Battery Type 3.7V Li-ion / Li-Po Cut-off Voltage 4.2V / 4.35V Indicator LEDs Red (Charging), Blue (Full) Dimensions 34.5mm × 15mm Applications 🔋 DIY lithium battery packs🔌 Power bank projects🚗 Portable electronics & gadgets🔧 Arduino / ESP32 battery systems🔦 Rechargeable lighting systems📦 Embedded battery charging modules Package Includes 1 × Type-C USB 3A Lithium Battery Fast Charging Board (IP2312)
4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module 4S 40A
[Lithium Battery Protection Board] The 4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module comes with recovery function – AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 40A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (If the cooling environment is not good, please reduce the load current use). The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650, 26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance). The Board which can be easily installed in a compact size or on battery bundle itself. Note: The Successful start of the drill requires a three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!). Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. The Discharge test, the voltage drop faster battery that group is a poor battery. Features: 4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery). Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery). Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version). Charging voltage: 16.8V – 18.1V. Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use). Continuous charge current (upper limit): 20A. Equalization version: suitable for starting current below 80A, power 135W below the drill. Package Includes: 1 x 4 Series 40A 18650 Lithium Battery Protection Board.
3 Series 20A 18650 Lithium Battery Protection Board 11.1V 12V 12.6V Good Quality
[Lithium Battery Protection Board] 3S 20A 18650 Lithium Battery Protection Board with Balance – 11.1V/12.6V The 3 Series 20A 18650 Lithium Battery Protection Board is designed for building and protecting 3S lithium-ion battery packs using 3.6V/3.7V cells such as 18650, 26650, and compatible lithium-polymer cells. It features automatic recovery, balanced charging, and 20A continuous charge/discharge capability. The board uses 10 low-resistance MOSFETs and provides approximately 100mA balancing current. ⭐ Key Features 3S lithium-ion battery protection board Suitable for 11.1V nominal / 12.6V fully charged battery packs Supports 3.6V/3.7V lithium-ion cells Compatible with 18650, 26650 and compatible Li-ion/Li-Po cells 20A maximum continuous discharge current 20A maximum continuous charge current Built-in 100mA balance function Automatic recovery after protection operation Integrated 10 low-resistance MOSFETs Suitable for compact DIY battery-pack construction Designed for applications such as drills, sprayers, LED lights and low-power inverters 📋 Technical Specifications Product Type: 3S Lithium Battery Protection Board / BMS Battery Configuration: 3 cells in series (3S) Compatible Battery: 3.6V/3.7V Li-ion cells Battery Pack Voltage: 11.1V nominal Full Charge Voltage: 12.6V Continuous Discharge Current: Up to 20A Continuous Charge Current: Up to 20A Balance Current: Approximately 100mA Balance Function: Yes Recovery Function: Automatic recovery MOSFET: 10 low-resistance MOS tubes Charging Voltage: 12.6V for the completed 3S pack Board Size: Approximately 46 × 60 × 3.4mm Compatible Cells: 18650, 26650 and compatible lithium-polymer cells 🔧 Applications 3S 18650 battery packs DIY rechargeable battery packs Electric drills Battery-powered sprayers LED lighting systems Low-power DC inverters Portable electronic projects Robotics and DIY power systems 🛠️ Wiring The balance connection points should be connected in the correct sequence according to the board markings: 0V → 4.2V → 8.4V → 12.6V Do not short-circuit the terminals or connect the cells incorrectly. ⚠️ Important Notes The 20A rating is the maximum continuous rating; actual usable current depends on cooling, wiring, MOSFET temperature and battery capability. For electric-drill applications, high-current cells are required. Ordinary low-current 18650 cells may not be capable of supplying the required starting current. Sources specify high-C-rate cells for drill applications. If cooling is insufficient, reduce the load current. For brushed DC motors, a suitable suppression capacitor may be used across the motor terminals to reduce voltage spikes, as recommended by the supplied product instructions. Cells used in the same 3S pack should be properly matched and have similar voltage and condition. This is a protection/balancing board, not a standalone 12.6V charger. Use an appropriate 12.6V lithium-ion charger. Connect the battery and balance wires exactly according to the PCB markings. 📦 Package Includes 1 × 3S 20A 18650 Lithium Battery Protection Board with Balance
HC-05 6pin Bluetooth Module with Button
[Bluetooth Module] HC-05 Bluetooth Module Are you in search of an HC-05 Bluetooth Module, a versatile and cost-effective solution for your wireless communication needs? Look no further. This Bluetooth module offers seamless wireless communication for a wide range of applications, from GPS navigation systems to water and electricity meter readings. Whether you're an electronics enthusiast, a DIY hobbyist, or a professional looking for competitive pricing, this module is designed to meet your requirements. The HC-05 Bluetooth Module lets you switch between Master and Slave modes with ease using AT Commands, and it comes pre-configured in Slave Mode. Its compatibility with devices such as phones, laptops, and microcontrollers ensures hassle-free connectivity. With a USART interface, it's a perfect fit for microcontrollers supporting USART communication. Plus, you can configure its settings effortlessly using the command mode. Ideal for DIY projects and data exchange, this Bluetooth module provides LED feedback for seamless operation, giving you the best bang for your buck. Buy the HC-05 Bluetooth Module today and enjoy top-notch wireless communication at a competitive price. The HC-05 Bluetooth Module with Baseplate is a slave-only device. This means that it can connect to most phones and computers with Bluetooth but it cannot connect to another slave-only device such as keyboards and other HC-06 modules. To connect with other slave devices a master module would be necessary such as the HC-05 module ,which can do both master and slave. The slave mode in HC-05 Bluetooth cannot initiate a connection to another Bluetooth device but can accept connections. Master mode can initiate a connection to other devices. Key Features: Working current: matching for 30 mA, matching the communication for 8 mA. With the computer and Bluetooth adapter, PDA, seamless connection equipment. Use the CSR mainstream Bluetooth chip, Bluetooth V2.0 protocol standards. Potter default rate of 9600, the user can be set up. Bluetooth protocol: Bluetooth Specification v2.0+EDR Speed: Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps. Security: Authentication and encryption. Profiles: Bluetooth serial port. HC-05 Bluetooth Module Pin Diagram: HC-05 Bluetooth Module Pin Description: Pin Number Pin Name Description 1 Enable / Key This pin is used to switch between command mode (set low) and Data Mode (set high). The default setting of this HC 05 Bluetooth module is Data Mode. 2 Vcc This pin can be used to power the Bluetooth module. It has an operating voltage of +5V DC. 3 Ground Connect the module's ground pin to the Microcontroller’s Ground Pin (GND). 4 TX – Transmitter Sends serial data to the MCU. This pin will distribute all Bluetooth data in the form of serial data to the Microcontroller. 5 RX – Receiver Obtain Serial Data. This pin will transmit all serial data that is provided to it over Bluetooth. 6 State The on-board LED attached to the state pin can be used as feedback to see if Bluetooth is functioning properly. 7 LED Indicates the status of Module Blink once in 2 sec: Command Mode Repeated Blink: Waiting for connection in Data Mode Blink twice in 1 sec: Connection successful in Data Mode 8 Button Used to control the Key/Enable pin to switch between Data Mode and command Mode HC-05 Default Values: Bluetooth Name: “HC-05” Password: 1234 or 0000 Communication: Slave Mode: Data Mode Data Mode Baud Rate: 9600, 8, N, 1 Applications Can be used for wireless communication between two microcontroller units. Communicate with Laptop mobile phones etc. Data Logging Wireless Robots DIY Home Automation Projects GPS-based DIY projects. Specifications: Serial communications 9600-115200bps Frequency 2.4~2.524 GHz Power Supply 5VDC Operating Current 30mA Range <100m Dimensions 30mm x 14mm x 2.2 mm Weight 5 grams Package Includes: 1 x HC-05 Bluetooth Module
BC547 NPN Good Quality General Purpose Transistor Rapid Make
[Transistor] BC547 NPN General Purpose Transistor TO-92 Package NPN transistor in a TO-92; SOT54 plastic package. PNP complements: BC556 and BC557. This device is designed for switching and amplifier applications.BC547 is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material usually with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor’s terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits. APPLICATIONS: General-purpose switching and amplification Features/Specs: Part No: C-TBC547B Brand: CDIL Transistor Polarity: NPN Collector-Base Voltage: 50VDC Collector-Emitter Voltage: 45VDC Emitter-Base Voltage: 6VDC Continuous Collector Current: 100mA Output Capacitance: 4.5pF Transition Frequency: 300MHz DC Current Gain: 110-800 Operating Temperature Range: -55 – 150°C Power Dissipation: 625mW Low error voltage Fast switching speed Full-voltage operation High power and current handling capability Package: TO-92 Material: Plastic Package
PVC Heat Shrink Sleeve 110mm Sky Blue 1 Meter
[Sleeves] This is 110mm 1-Meter PVC Heat Shrink Sleeve Blue for Lithium Cell Pack. PVC Heat Shrinks are mainly used to protect, insulate and hold all your battery packs in place. You can use a hair drier or a heat gun to shrink the tube properly. It provides electrical insulation, mechanical protection, sealing, and strain relief, and it can also be used to identify components and wires, creating a functional, professional appearance of the assembly. Features: Type: PVC Heat Shrink Color: Blue Material: Poly Vinyl Chloride (PVC) Length: 1 Meter Width: 110mm Type PVC Heat Shrink Color Blue Material Poly Vinyl Chloride (PVC) Length 1 Meter Width 100mm Shipping Weight 35 gram Shipping Dimensions 11 × 5 × 5 cm Package Includes: 1 x PVC Heat Shrink Sleeve 110mm
DMEGC INR18650-32E 3.7V 3200mAh 3C Li-Ion Battery
[Lithium Battery Cell] DMEGC Cylindrical Lithium-ion Cell 3200mAh 3.7V 18650 – High Performance & Reliable Power The DMEGC Cylindrical Lithium-ion 18650 Cell is a high-performance, rechargeable lithium-ion battery with a 3200mAh capacity and a 3.7V nominal voltage. Designed for high energy density, long cycle life, and stable performance, this cell is ideal for portable electronics, power tools, electric vehicles (EVs), energy storage systems, and custom battery packs. You can check our others lithium cells click here. Product Data Sheet (INR18650-32E) Key Features High Capacity & Voltage: 3.7V nominal voltage with a 3200mAh capacity for extended usage. Long Cycle Life: Over 1,000 charge cycles, ensuring durability and cost-effectiveness. Fast Charging & Discharging: Supports high charge/discharge currents for high-performance applications. Stable Performance: Low internal resistance for efficient power output. Enhanced Safety: Built-in protection against overcharging, over-discharging, and short circuits. Eco-Friendly: Free from toxic heavy metals like lead and cadmium. Technical Specifications Model: 18650 Nominal Voltage: 3.7V Nominal Capacity: 3200mAh Minimum Capacity: 3100mAh Charge Voltage: 4.2V Discharge Cut-off Voltage: 2.5V Cycle Life >1,000 cycles (80% DOD) Maximum Discharge Current: 1C (3.2A) Maximum Discharge Current: 2C (6.4A Dimensions: 18mm x 65mm Weight: Approximately 48g Applications The DMEGC 3200mAh 18650 cell is widely used in various applications: Portable Electronics & Power Banks Perfect for laptops, flashlights, power banks, and other consumer electronics, ensuring long-lasting power. Power Tools & DIY Battery Packs Provides consistent high power output, making it ideal for cordless drills, electric screwdrivers, and other tools. Electric Vehicles (EVs) & E-Bikes Offers a stable and high-energy output for electric bicycles, scooters, and lightweight electric vehicles. Energy Storage Systems Can be used in solar energy storage systems, home battery banks, and off-grid applications. Why Choose DMEGC Cylindrical Lithium-ion Cell 3200mAh 3.7V 18650? Superior Lifespan: Long cycle life compared to standard lithium-ion cells. Enhanced Safety: No risk of thermal runaway, explosion, or fire. Energy Efficient: Low self-discharge rate and high efficiency. Environmentally Friendly: 100% recyclable and non-toxic materials. Package Includes : 1 x DMEGC INR18650-32E 3.7V 3200mAh 3C Li-Ion Battery
3 Pin Leg 2 Position SPDT 1P2T PCB Panel Mini Vertical Slide Switch
[Mechanical Switches] Description Product Name : Slide Switch; Model : SS-12F32G5 Action Type : SPDT Power : DC50V 0.5A Terminal Length : 5mm/ 0.2 Insulation Resistance : 100mohm Min. at 500V DC Withstand Voltage : AC 500V for 1 min
Out of stock3S 60A Lithium Battery Charger BMS 18650 Protection Module Circuit
[Lithium Battery Protection Board] Lithium-Ion Battery Packs need to be Balanced Charged and protected from Over Charge and Over-Discharge. This ensures the safety of the circuit and gives optimum battery life preserving the original capacity through use. You can use this Battery Management System(BMS) to ensure these conditions. It also offers short circuit protection. If you are using a 3S Lithium Battery in your project, you can also use this BMS Module to protect it from short circuits in the circuit. In the event of a short circuit, the BMS will cut power to the battery and restart. The 3 Series 60A 18650 Lithium Battery Protection Board 11.1V 12.6V with Balance for Drill Motor Lipo Cell Module comes with recovery function-AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 60A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (if the cooling environment is not good, please reduce the load current use). The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance). The Board comes in a size of approx. 46 x 60 x 3.4 mm which can be easily installed in a compact size or on the battery bundle itself. Features: 3S 11.1V 12.6V 60A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery). Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery). Continuous discharge current (upper limit): 60A (if the cooling environment is not good, please reduce the load current use). Continuous charge current (upper limit): 20A. Suitable for the drills with starting current below 80A, power 135W below. Note: The Successful start of the drill requires three 15C-20C power battery, or six 10C-15C power batteries (ordinary 18650 cannot start the drill!!). Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 3 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. In the Discharge test, the voltage drops faster battery that group is a poor battery. Package Includes: 1 x Battery Balance Module Enhanced 18650( 3S, 60A )
AC-01 3 Pin AC Power Entry Socket IEC C14 Panel Mount Male Connector 250V 10A Black
[Power Connector] The AC-01 3 Pin AC Power Entry Socket is a reliable IEC C14 panel-mount AC power inlet designed for use in electronic equipment, industrial control systems, power supplies, and electrical appliances. It provides a secure AC mains connection while ensuring safe and stable power delivery. Manufactured from high-quality flame-retardant thermoplastic with durable copper alloy terminals, the connector offers excellent electrical conductivity, high mechanical strength, and long service life. The snap-fit panel mounting design enables quick installation without additional mounting hardware, making it ideal for OEM equipment and DIY electronic projects. The rear terminals support soldering or crimp connections for easy wiring during assembly. Rated at 250V AC and 10A, the socket is suitable for a wide range of electronic devices requiring grounded AC mains power. Its compact design provides a clean and professional finish while allowing easy replacement and servicing of detachable IEC power cords. 🔹 Key Features Standard IEC C14 AC power inlet 3-pin grounded connector Snap-fit panel mounting No external mounting screws required Durable flame-retardant housing High-quality copper alloy terminals Supports solder or crimp connections Secure and reliable AC mains connection Compact and professional design Long service life 🔹 Technical Specifications Product Type: AC Power Entry Socket Model: AC-01 IEC Standard: IEC 60320 C14 Connector Type: Male Power Inlet Number of Pins: 3 (Live, Neutral, Earth) Mounting Type: Panel Mount Mounting Style: Snap Fit Terminal Type: Solder / Crimp Rated Voltage: 250V AC Rated Current: 10A Frequency: 50/60Hz Contact Material: Copper Alloy Housing Material: Flame-Retardant Thermoplastic Color: Black Insulation Resistance: ≥100MΩ Contact Resistance: ≤20mΩ Operating Temperature: -20°C to +85°C 🔹 Pin Configuration L – Live (Phase) N – Neutral E – Earth (Ground) 🔹 Applications Suitable for: SMPS power supplies Desktop computers UPS systems Laboratory equipment Industrial control panels Battery chargers Audio amplifiers Medical equipment Electronic enclosures DIY electronics projects 🔹 Package Includes 1 × AC-01 3 Pin IEC C14 AC Power Entry Socket
Out of stock8mm High Quality LED- Clear Lens-Cool White
[DIP LED] This White colour LED type with a clear lens is a low power consumption LED with a wide viewing angle, Ideal for backlight and indicator. It is widely used in pin Status, optoelectronics sensors, and fun blinky displays. This is a very basic 8 mm LED with a clear lens. It has a typical forward voltage of 3.3V and a rated forward current of 100 mA. SPECIFICATION LED Diameter 8mm Emitted Colour Cool White Viewing Angle 120° Forward Voltage 3-3.4V Forward Current 100mA Lens Type Clear Quantity 1
8mm High Quality LED- Clear Lens-Warm White Brand Superlight
[DIP LED] This Yellow colour LED type with a clear lens is a low power consumption LED with a wide viewing angle, Ideal for backlight and indicator. It is widely used in pin Status, optoelectronics sensors, and fun blinky displays. This is a very basic 8 mm LED with a clear lens. It has a typical forward voltage of 3.3V and a rated forward current of 100 mA. SPECIFICATION LED Diameter 8mm Emitted Colour Warm White Viewing Angle 120° Forward Voltage 3-3.4V Forward Current 100mA Lens Type Clear Quantity 1
Out of stock3S 12V 25A 18650 Lithium Battery Protection Board with Balance
[Lithium Battery Protection Board] This is 3S 12V 25A 18650 Lithium Battery Protection Board 11.1V 12.6V High Current With Balanced Circuit Over Charge Over-Discharge Over Current And Short Circuit Protection Function. Board charging and discharging are the same port, the board includes the balanced circuit. When the charge balance, the board will be a bit warm, even after disconnecting the charger, some are still in the balance, will continue to warm for a while until below the equilibrium break threshold. The protection board cannot be used for iron lithium polymer battery (for other batteries, no matter what material, as long as the overvoltage and put voltage can be used for cutting), electric finish machinery, electric bicycle batteries, car, and motorcycle starter battery protection. Applicable to the following products (within rated power): Electric drill, 775 motors (6A-10A), small power inverter, small power vacuum massager battery, LED lamp, 12V standby power electronic products, 12V120W car washing pump, battery, solar street lamp monitoring standby power supply, and other products. Rated current can’t over 25A, it can’t exceed 50A per 0.5 seconds. Specifications : Overcharge voltage range: 4.25-4.35v + 0.05v. Overdischarge voltage range: 2.3-2.7v + 0.05v. Operating current: 0 – 25A. Operating temperature: -40 – +50℃. Instantaneous current: 35 – 40A. Storage condition: -40 – +80℃. Quiescent current: less than 30uA. Balance current: about 40 – 50mA. Effective life: more than 30000 hours. Internal resistance: less than 100m ohm. Short-circuit protection: protection, delayed self recovery. Package includes: 1 x 3S 12V 18650 lithium battery protection board with Balance.