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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Coco Sports Rampage Panoramic Tempered Glass Gaming PC Case
[PC Case] Coco Sports Rampage Panoramic Tempered Glass ATX Gaming Case Pillarless aquarium-style panoramic tempered glass PC case pre-fitted with 4x hydraulic bearing ARGB fans. Features full bottom-to-top vertical airflow and dual chamber cable routing. ⭐ Key Features - 270-degree pillarless dual tempered glass view - Pre-installed with 4x 120mm ARGB rainbow fans with LED control button - Dual-chamber layout hides power supply and SATA storage - Supports GPUs up to 380mm in length 📋 Technical Specifications - Form Factor: ATX, M-ATX, Mini-ITX - Drive Bays: 2x 3.5" HDD, 2x 2.5" SSD - Expansion Slots: 7 - Front I/O: 1x USB 3.0, 2x USB 2.0, Audio In/Out 📦 Package Includes - 1 x Coco Sports Rampage Gaming Case - 4 x 120mm ARGB Fans pre-installed
48mm Square Internal Magnet Speaker – 4Ohms 5W
[Speakers] 48mm Square Internal Magnet Speaker – 4Ω 5W The 48mm Square Internal Magnet Speaker is a compact full-range audio driver designed for clear and efficient sound reproduction in space-constrained applications. With a 4Ω impedance and 5W power rating, this speaker is suitable for Bluetooth speakers, portable audio systems, DIY speaker projects and embedded electronic devices. Its square frame allows convenient mounting inside compact enclosures and panels. ⭐ Key Features Compact square speaker design 4Ω impedance 5W power rating Internal magnet construction Full-range audio output Compact size for space-limited applications Easy to install inside speaker enclosures Suitable for DIY and commercial audio projects Lightweight and practical design 📋 Technical Specifications Speaker Type: Internal Magnet Speaker Shape: Square Speaker Size: 48mm class Model: 4Ω 5W Impedance: 4Ω Power Rating: 5W Magnet Type: Internal Magnet Audio Type: Full-range Mounting Type: Panel / Enclosure Mount Dimensions: 47 × 29 × 23mm Application: Compact audio systems, DIY electronics and portable speakers 🔧 Applications Bluetooth speaker systems Portable speakers DIY speaker projects Compact audio enclosures Embedded audio systems Intercom systems Alert and notification devices Educational electronics projects Consumer electronic devices Custom audio projects 🛠️ Installation Connect the speaker to a compatible amplifier with a 4Ω output. Ensure the amplifier's output power is suitable for the speaker's 5W rating. Mount the speaker securely inside the enclosure to reduce unwanted vibration. Observe correct speaker polarity when connecting multiple speakers. 📦 Package Includes 1 × 48mm Square Internal Magnet Speaker Impedance: 4Ω Power: 5W ⚠️ Precautions Do not exceed the 5W rated power for prolonged operation. Use a compatible 4Ω amplifier. Avoid short-circuiting the speaker terminals. Keep away from moisture, excessive heat and physical damage. Ensure proper mounting to minimize vibration and unwanted noise. Actual sound quality depends on the amplifier, enclosure and application.
2 Inch 4 Ohms 5Watt Internal Magnet Speaker with Frame
[Speakers] 2-Inch Internal Magnet Speaker with Frame – 53×29×23mm 4Ω 5W The 2-Inch Internal Magnet Speaker with Frame is a compact and efficient audio driver designed for DIY electronics, portable audio devices, alarms, toys, embedded systems, and other space-constrained applications. Featuring an internal magnet design and durable frame construction, this speaker provides clear and balanced sound output while maintaining a compact footprint. With dimensions of 53×29×23mm, 4Ω impedance, and a 5W power rating, this speaker is suitable for small amplifier projects and electronic devices requiring a compact audio solution. The mounting frame makes installation convenient in custom enclosures and equipment. ⭐ Key Features 2-Inch compact speaker design Internal magnet structure 4Ω impedance 5W power rating Durable metal frame construction Clear and balanced sound output Compact and space-saving design Easy mounting with frame and screw slots Suitable for low and medium-power audio applications Ideal for DIY and OEM applications 📋 Technical Specifications Product Type: Dynamic Internal Magnet Speaker Speaker Size: 2 Inch Dimensions: 53 × 29 × 23mm Impedance: 4Ω Power Rating: 5W Magnet Type: Internal Magnet Magnet Material: Ferrite Shape: Rectangular Frame Type: Metal Frame Cone Material: Paper / Mylar Diaphragm depending on variant Speaker Type: Full Range / Dynamic Speaker Mounting: Frame with Screw Slots Application: Compact Audio & Embedded Electronics 🔧 Applications DIY Speaker Projects Portable Audio Devices Bluetooth Speaker Projects Alarm Systems Toys and Sound Modules Intercom Systems Embedded Electronics Educational Electronics Kits Replacement Speaker Repairs Smart Gadgets OEM Product Manufacturing Mini Amplifier Projects 🛠️ Installation Connect the speaker to a compatible amplifier output matching the speaker's 4Ω impedance and 5W power rating. Secure the speaker firmly using the mounting frame to reduce unwanted vibration and noise during operation. 📦 Package Includes 1 × 2-Inch Internal Magnet Speaker with Frame – 4Ω 5W ⚠️ Precautions Match the 4Ω impedance with the amplifier output. Do not exceed the 5W rated power. Avoid applying direct DC voltage to the speaker. Avoid exposure to moisture and excessive humidity. Mount the speaker securely before operation. Do not apply physical pressure to the speaker cone or diaphragm. Avoid short circuits at the speaker terminals. Keep the speaker away from excessive heat and magnetic interference.
ESP32-C3 Super Mini Development Board With Headers Pins
[ESP Modules] Ultra Compact • Wi-Fi & BLE 5.0 • USB Type-C • Perfect for IoT & Embedded Projects The ESP32-C3 Super Mini Development Board is a compact, feature-rich development board built around the powerful ESP32-C3 SoC from Espressif. Powered by a 32-bit RISC-V single-core processor running at up to 160MHz, it combines 2.4GHz Wi-Fi, Bluetooth 5.0 Low Energy (BLE), and low-power operation in an ultra-small form factor. Designed for IoT, smart home, wireless communication, automation, and embedded system development, the ESP32-C3 Super Mini offers 4MB Flash memory, 400KB SRAM, multiple GPIOs, ADC, PWM, UART, SPI, and I2C interfaces for connecting sensors, displays, relays, and other peripherals. The onboard USB Type-C interface simplifies programming and power supply, while the built-in USB-to-Serial functionality enables quick firmware uploading without requiring additional programmers. Fully compatible with Arduino IDE, ESP-IDF, PlatformIO, and MicroPython, it is suitable for beginners, students, makers, and professional developers. Its ultra-compact breadboard-friendly design makes it ideal for portable and space-constrained projects where performance, wireless connectivity, and energy efficiency are essential. Note: Programming, software configuration, driver installation, firmware flashing, and coding-related issues are not covered under return or replacement. Users are expected to troubleshoot software-related issues independently. ⭐ Features Powerful ESP32-C3 32-bit RISC-V processor CPU frequency up to 160MHz Built-in 2.4GHz Wi-Fi (802.11 b/g/n) Integrated Bluetooth 5.0 Low Energy (BLE) Ultra-compact Super Mini design Breadboard-friendly layout USB Type-C interface for programming and power 4MB onboard Flash memory 400KB SRAM Multiple GPIO, ADC, PWM, UART, SPI & I2C interfaces Low power consumption with Deep Sleep mode Onboard programmable LED Compatible with Arduino IDE, ESP-IDF, PlatformIO & MicroPython Ideal for IoT, automation, robotics, and wireless applications 📋 Technical Specifications Product Type: Development Board Board Model: ESP32-C3 Super Mini Microcontroller: ESP32-C3 Processor Architecture: 32-bit RISC-V CPU Frequency: Up to 160MHz Core: Single Core Flash Memory: 4MB SRAM: 400KB Wi-Fi Standard: IEEE 802.11 b/g/n (2.4GHz) Bluetooth: Bluetooth 5.0 Low Energy (BLE) Operating Voltage: 3.3V Input Voltage: 5V via USB Type-C or 3.3V External USB Interface: USB Type-C GPIO: Multiple Digital GPIO Pins Analog Input: Up to 6 ADC Channels PWM: Supported UART: Supported SPI: Supported I2C: Supported USB-to-Serial: Onboard Onboard LED: User Programmable (GPIO8) Power Consumption: Ultra Low (Deep Sleep ≈ 43µA) Dimensions: Approx. 22.5 × 18 mm Headers: Pre-Soldered 🔧 Applications Suitable for: Internet of Things (IoT) Smart Home Automation Wireless Sensor Networks Home Automation Systems Bluetooth Low Energy Devices Wi-Fi Enabled Controllers Robotics Projects Data Logging Systems Remote Monitoring Industrial Automation Portable Embedded Devices Educational Learning DIY Electronics Projects Wearable Electronics Rapid Prototyping 📦 Package Includes 1 × ESP32-C3 Super Mini Development Board Pin Headers ⚠️ Note Programming, firmware installation, software configuration, and driver-related issues are not covered under warranty, return, or replacement. Please verify board compatibility and install the appropriate development environment before programming. Soldered and non-soldered header pin depend on stock
Winway 18650 Lithium-Ion Rechargeable Battery 3.7V 2600mAh 9.62Wh
[Lithium Battery Cell] The Winway 18650 Lithium-Ion Rechargeable Battery is a high-performance cylindrical Li-ion cell designed to deliver reliable and long-lasting power for a wide range of electronic devices. With a nominal voltage of 3.7V, 2600mAh capacity, and 9.62Wh energy rating, it provides consistent power output for both high-drain and low-drain applications. Manufactured using premium lithium-ion cell technology, this battery offers excellent energy density, stable discharge performance, and long cycle life. Its standard 18650 form factor makes it compatible with most battery holders, chargers, and devices designed for 18650 cells. The Winway 2600mAh battery is widely used in rechargeable flashlights, emergency lights, battery packs, power banks, Bluetooth speakers, portable fans, solar lighting, DIY electronics, robotics, and various battery-operated devices. Designed for durability and dependable performance, this battery delivers excellent backup time while maintaining stable voltage throughout the discharge cycle. ⭐ Features High-quality 18650 Lithium-Ion rechargeable battery 2600mAh high-capacity cell Nominal voltage of 3.7V Energy rating of 9.62Wh Stable discharge performance High energy density Long charge and discharge cycle life Lightweight and compact cylindrical design Suitable for battery pack assembly Compatible with standard 18650 battery holders and chargers 📋 Technical Specifications Product Type: Lithium-Ion Rechargeable Battery Brand: Winway Battery Model: 18650 Nominal Voltage: 3.7V Nominal Capacity: 2600mAh Energy: 9.62Wh Battery Chemistry: Lithium-Ion (Li-ion) Cell Type: Rechargeable Form Factor: Cylindrical 18650 Diameter: Approx. 18mm Length: Approx. 65mm Weight: Approx. 45g Color: Green Rechargeable: Yes Made In: India Pack Quantity: 1 Piece 🔧 Applications Suitable for: Rechargeable Flashlights Emergency Lights Power Banks Bluetooth Speakers Portable Fans Solar Lighting Systems DIY Battery Packs Robotics Projects Arduino Projects ESP32 Projects Electronic Toys Portable Electronic Devices Medical Equipment (Compatible Models) Industrial Electronic Equipment 📦 Package Includes 1 × Winway 18650 Lithium-Ion Rechargeable Battery 3.7V 2600mAh ⚠️ Safety Instructions Use only a compatible Li-ion battery charger. Do not short-circuit, puncture, crush, or disassemble the battery. Do not expose the battery to fire, excessive heat, or water. Observe correct polarity during installation. Do not overcharge or over-discharge the battery. Store in a cool, dry place away from direct sunlight.
702025 3.7V 400mAh rechargeable Battery for Drone, Toys, Gaming, Robotics bluetoorh Headset, Bluetooth Speaker
[LiPo Cell] The 702025 3.7V 400mAh Rechargeable Lithium Polymer Battery is a compact and high-performance power source designed for portable electronic devices requiring lightweight and reliable energy storage. Built using advanced Lithium Polymer (Li-Po) technology, it provides high energy density, low self-discharge, and consistent output voltage. In addition, the battery delivers a nominal voltage of 3.7V with a capacity of 400mAh, making it suitable for powering compact electronic devices and embedded systems. As a result, it is widely used in drones, Bluetooth speakers, Bluetooth headsets, wireless gaming accessories, robotics, GPS devices, wearable electronics, and DIY battery-powered projects. Because of its slim profile and lightweight construction, the battery can be easily integrated into space-constrained applications. Furthermore, it supports multiple charge and discharge cycles while maintaining stable performance and long service life. The battery includes a pre-attached connector with insulated leads for quick installation and safe operation. Moreover, its rechargeable design makes it an economical and environmentally friendly power solution. ⚠️ Note: Charge the battery only with a compatible 3.7V Lithium Polymer battery charger or BMS protection circuit. 🔹 Key Features Rechargeable Lithium Polymer (Li-Po) battery High energy density Compact and lightweight design Stable 3.7V output Long charge/discharge cycle life Low self-discharge rate Pre-attached connection wires Suitable for portable electronic devices Reliable and safe performance Ideal for DIY electronics projects 🔹 Technical Specifications Battery Type: Lithium Polymer (Li-Po) Model: 702025 Nominal Voltage: 3.7V Full Charge Voltage: 4.2V Capacity: 400mAh Battery Dimensions: Approx. 7 × 20 × 25 mm Rechargeable: Yes Protection Circuit: Yes Charging Method: CC/CV (Constant Current / Constant Voltage) Operating Temperature: -10°C to +60°C Weight: Approximately 6–7g 🔹 Applications This battery is suitable for: Mini drones RC toys Bluetooth headsets Bluetooth speakers Wireless gaming controllers Robotics projects GPS trackers Wearable electronics DIY electronic devices Portable rechargeable products
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
704060 3.7V 2000mAh LiPo Battery | Rechargeable Lithium Polymer Battery with BMS
[LiPo Cell] The 704060 3.7V 2000mAh Lithium Polymer Battery is a compact, high-capacity rechargeable LiPo battery designed for portable electronic devices. With a nominal voltage of 3.7V and a capacity of 2000mAh, it provides reliable and long-lasting power for small electronics and DIY projects. This battery includes a built-in protection circuit (PCM) that helps prevent overcharging, over-discharging, and short circuits, ensuring safer operation and longer battery life. Its slim pouch design makes it ideal for space-constrained applications such as Bluetooth speakers, GPS trackers, mini cameras, and wearable devices. 🔹 Key Features High capacity 2000mAh LiPo battery Nominal voltage 3.7V Built-in PCM protection circuit Lightweight and compact pouch design Stable discharge performance Long service life Suitable for portable electronic devices 🔹 Technical Specifications Parameter Specification Model 704060 Battery Type Lithium Polymer (LiPo) Nominal Voltage 3.7V Fully Charged Voltage 4.2V Capacity 2000mAh Dimensions 60 × 40 × 7 mm Length 60 mm Width 40 mm Thickness 7 mm Protection Built-in PCM protection board Rechargeable Yes 🔹 Applications Bluetooth speakers MP3 / MP4 players Mini cameras GPS trackers Vehicle data recorders IoT devices Portable electronics DIY electronics projects 🔹 Package Includes 1 × 704060 3.7V 2000mAh Lithium Polymer Rechargeable Battery ⚠ Battery color and label may vary depending on batch. ⚠ Safety Instructions Do not short circuit the battery terminals. Do not charge above 4.2V. Do not discharge below 3.0V. Use a LiPo compatible charger. Do not puncture, crush, or expose battery to fire. Do not charge unattended. Store in a cool and dry place.
113440P 3.7V 1500mAh Lithium Polymer Rechargeable Li-Po Pouch Cell
[LiPo Cell] The 113440P 3.7V 1500mAh Lithium Polymer Battery is a compact and lightweight rechargeable Li-Po pouch cell designed for reliable power delivery in modern electronic applications. With a nominal voltage of 3.7V and a high capacity of 1500mAh, this battery is well-suited for DIY electronics, IoT devices, Bluetooth speakers, GPS trackers, medical devices, wearables, and portable gadgets. Manufactured using advanced lithium polymer chemistry, the battery offers stable discharge performance, low internal resistance, and long cycle life. Its flat pouch form factor allows easy integration into slim and space-constrained designs where cylindrical cells are not suitable. For safe operation, the battery should be used with a proper Li-Po charging circuit (CC/CV) and protection module (PCM/BMS) to prevent over-charge, over-discharge, over-current, and short-circuit conditions. ⭐ KEY FEATURES ✔ Nominal Voltage: 3.7V✔ Capacity: 1500mAh✔ Lithium Polymer (Li-Po) Chemistry✔ Rechargeable & Long Cycle Life✔ Slim pouch / flat cell design✔ Stable discharge & low self-discharge✔ Lightweight and compact✔ Suitable for DIY & OEM applications 🔧 TECHNICAL SPECIFICATIONS Model: 113440P Battery Type: Lithium Polymer (Li-Po) Nominal Voltage: 3.7V Rated Capacity: 1500mAh Max Charging Voltage: 4.2V Discharge Cut-off Voltage: ~3.0V Rechargeable: Yes Form Factor: Pouch / Flat Cell 🎯 APPLICATIONS DIY electronics projects IoT & embedded systems Bluetooth speakers & audio devices Wearable & medical devices GPS trackers Power banks & portable gadgets 📦 PACKAGE INCLUDES 1 × 113440P 3.7V 1500mAh Lithium Polymer Battery Cell(Quantity as per selected pack)
MAS830L Digital LCD Multimeter with Backlight | AC/DC Voltage Current Resistance Tester
[Measuring Instruments] The MAS830L Digital LCD Pocket Multimeter with Backlight is a compact, accurate, and reliable electrical measuring instrument designed for everyday testing and troubleshooting. Built for technicians, students, hobbyists, and DIY electronics users, this multimeter supports measurement of AC voltage, DC voltage, DC current, resistance, continuity, and diode testing in a convenient handheld format. Equipped with a clear LCD display and built-in backlight, the MAS830L allows easy reading of measurements even in low-light working conditions. Its manual range selector dial provides simple and precise control over measurement ranges, while automatic polarity indication helps prevent reading errors. Designed with durability and portability in mind, this pocket-size multimeter features a strong impact-resistant body and lightweight construction, making it ideal for both field work and bench testing. The included test leads allow immediate use for checking batteries, circuits, wiring, power supplies, and electronic components. With stable performance, essential protection features, and user-friendly operation, the MAS830L is an excellent choice for electrical maintenance, electronics repair, lab experiments, educational training, and home diagnostics. Whether you are testing voltage, checking continuity, or measuring resistance, this multimeter delivers dependable results at an affordable price. ⭐ Key Features ✔ Measures AC & DC Voltage ✔ Measures DC Current ✔ Resistance Measurement ✔ Continuity Test with Buzzer ✔ Diode Test Function ✔ LCD Display with Backlight for low-light use ✔ Compact pocket-size design ✔ Manual range selection for accuracy ✔ Automatic polarity indication ✔ Lightweight and portable ✔ Ideal for beginners and professionals 🔧 Technical Specifications Model: MAS830L Display: LCD Digital with Backlight Display Count: 3½ digit (1999 count) Range Selection: Manual Polarity: Automatic indication Low Battery Indicator: Yes Measurement Ranges DC Voltage: 200mV / 2V / 20V / 200V / 600V AC Voltage: 200V / 600V DC Current: 200µA / 2mA / 20mA / 200mA / 10A Resistance: 200Ω / 2kΩ / 20kΩ / 200kΩ / 2MΩ Test Functions Continuity with buzzer Diode test Transistor hFE test (model variant dependent) Power Supply: 9V Battery (6F22) Operating Temperature: 0°C to 40°C (typical) Form Factor: Handheld / Pocket Body Material: Impact-resistant plastic 🎯 Applications Electrical troubleshooting Electronics repair & assembly Battery testing Circuit diagnostics DIY electronics projects Educational laboratories Home & industrial maintenance 📦 Package Includes 1 × Unity MAS830L Digital Multimeter 1 × Test Lead Pair 1 × User Manual (if included by batch)
ESP32 Development Board with WiFi & Bluetooth – CH340C USB Type-C
[ESP Modules] The ESP32 Development Board with WiFi & Bluetooth (CH340C, Type-C) is a powerful and versatile microcontroller board designed for modern wireless and IoT applications. It features a dual-core processor and integrated 2.4GHz WiFi and Bluetooth (Classic + BLE) connectivity. This board includes an onboard CH340C USB-to-Serial converter, which allows easy programming and communication without requiring an external crystal oscillator. The USB Type-C port provides a stable and reversible connection for power and data. With a wide range of GPIO pins and peripherals such as ADC, DAC, PWM, UART, SPI, and I2C, this board is perfect for building home automation systems, smart devices, IoT nodes, robotics controllers, sensor networks, web servers, and wireless projects. It is fully compatible with Arduino IDE, ESP-IDF, and MicroPython, making it suitable for beginners, students, and professional developers. 🔹 Key Features Based on ESP32 dual-core microcontroller Built-in WiFi 802.11 b/g/n and Bluetooth v4.2 (Classic + BLE) Onboard CH340C USB-to-Serial converter (no external crystal required) Modern USB Type-C connector for power and programming Dual-core CPU up to 240 MHz for high-performance applications Multiple GPIO pins with ADC, DAC, PWM support Supports Arduino IDE, ESP-IDF, and MicroPython Low-power modes including deep sleep for battery-powered projects Compact design with breadboard-friendly layout Ideal for IoT, automation, robotics, smart home, and DIY electronics 🔹 Technical Specifications Microcontroller: ESP32 CPU: Dual-core Tensilica LX6, up to 240 MHz Flash Memory: 4 MB (typical, may vary by batch) SRAM: 520 KB Wireless Connectivity: WiFi: 2.4 GHz, 802.11 b/g/n Bluetooth: v4.2, Classic + BLE USB Interface: USB Type-C USB-to-Serial Chip: CH340C Operating Voltage: 3.3 V Input Voltage: 5 V via USB Logic Level: 3.3 V GPIO Pins: 30+ multifunction pins Peripherals: ADC, DAC, PWM, UART, SPI, I2C, I2S Clock Frequency: Up to 240 MHz Programming Support: Arduino IDE, ESP-IDF, MicroPython Onboard Components: Reset & Boot buttons, voltage regulator, status LEDs Form Factor: Standard ESP32 Dev Board size 🔹 Applications Internet of Things (IoT) projects Home and industrial automation Smart home devices Robotics and motor control Wireless sensor networks Web servers and cloud-connected devices Educational and training projects DIY electronics and prototyping 🔹 Package Contents 1 × ESP32 Development Board with WiFi & Bluetooth (CH340C, USB Type-C)
Kapton 25mm x 33m High Temperature Resistant Tape
[Kapton Tapes] Kapton tape is a polyimide film first developed by DuPont in the 1960s. It remains stable at an extremely wide range of temperatures from -269˚C to 260˚C and has been an industry-standard due to its excellent electrical, thermal, chemical and mechanical properties. This enables the film to withstand extreme temperatures, vibration, and other demanding environments. This Kapton 50mm x 33m High-Temperature Resistant Tape for 3D Printers is a polyester film tape with a high-temperature resistant adhesive. Primarily used to hold transfer sheets in place while sublimating onto a variety of items and hold the polymer plate on the heating platen in the hot foil stamping. Excellent heat & solvent resistance. Minimal shrinkage after baking and clean removal. Due to Kapton tape’s large range of temperature stability and electrical isolation ability, it is used during the manufacturing and final assembly of electronic components. It acts as a protective layer that isolates and prevents the electrostatic discharge of sensitive components, also protecting and restraining components during high temp applications and reflow soldering procedures. ABS and Kapton adhere extremely well to one another, making Kapton tape a perfect 3D printing bed surface layer. It is usually applied to a glass or aluminum bed surface, where extruded ABS filament adheres to the surface. Specification and Features: Material: Polyimide Spindle Type: Roll Tape Length: 33m TapeWidth: 25mm Colour: Metallic Brown Temperature Range: 200ºC High-quality product from a well-known brand Package Includes: 1 x Kapton 25mm x 33m High-Temperature Resistant Tape for 3D Printers Note: Product Images are shown for illustrative purposes only and may differ from the actual product
1S 2A 18650 (NMC) Lithium Battery BMS Round Shape With Nickel Strip
[Lithium Battery Protection Board] JLGW BMS NMC 1S 2A ROUND Hardware Product Data Sheet The BMS NMC 1S 2A ROUND (JLGW) is a high-precision, compact Battery Management System specially designed for single-cell NMC (Li-ion 3.7V) battery protection. This module is uniquely built in a round PCB layout, allowing it to seamlessly integrate into compact cylindrical battery designs or battery packs with limited space. Technical Specifications Parameter Specification Configuration 1S (Single 3.7V Li-ion Cell) Battery Chemistry NMC / Li-ion Nominal Voltage 3.7V Continuous Current 2A Overcharge Protection 4.25V ± 0.05V Over-discharge Protection 2.75V ± 0.05V Short Circuit Protection Yes (Instant cut-off) Overcurrent Protection Yes (~3A threshold) Working Temperature Range -20°C to +60°C PCB Shape & Size Round mini-PCBA with dual nickel strips Mounting Style Spot-Weld Tabs Key Features Space-Saving Round Design: Engineered for cylindrical cells and compact builds. Intelligent Safety Circuitry: Built-in MOSFETs and ICs protect against all common faults. 2A Output: Suited for low-drain applications like wearables and IoT gadgets. Nickel Strips Included: Pre-attached nickel makes welding and integration seamless. Single Cell Protection: Manages charge-discharge cycles efficiently for 1S packs. Ideal Applications LED Flashlights Cylindrical Battery Packs DIY Battery Projects Bluetooth Audio Devices Small IoT Systems Mini Power Banks The PCM NMC 01S/2A ROUND is a Battery Protection Circuit Module (PCM) designed for 1 series Nickel Manganese Cobalt (NMC) battery packs, supporting a 2A continuous discharge current. This module is suitable for low-power applications such as small energy storage systems, backup power solutions, and portable devices. The round designation indicates that the PCM is designed for round-cell configurations, which are commonly used in battery packs for various consumer electronics. It offers essential protection features, including overcharge, over-discharge, overcurrent, short circuit, and temperature protection, ensuring the safe and reliable operation of the battery. The PCM helps maintain the health of the cells by balancing the voltage across them, optimizing performance and extending the battery's lifespan. Package Includes: 1 x 1S 2A 18650 (NMC) Lithium Battery BMS Round Shape With Nickel Strip
DC 3V-6V to 1000KV 1000000V Boost Step-up Power Module
[Step UP Buck Converter] Description Overview of this DC 3V-6V to 1000KV step up high voltage generator The DC 3.6V-6V To 1000KV Boost Step Up Power Module is a cutting edge high voltage generator designed for diverse applications. With a focus on safety and efficiency. This module easily transforms low input voltages of 3.6V to 6V into a powerful output up to 1000KV. Ideal for high-voltage experiments, education purposes, and prototype. It also provides a versatile solution for various electronic projects. Featuring advanced step-up DC conversion technology, this module ensures stable and reliable performance. Its compact design also make it perfect for use in a wide range of projects. The input range of 3V-6V offers flexibility, and the adjustable output allows users to fine-tune the voltage as needed. With a focus on user safety, the module includes built-in protective featur to prevent overloading and ensure efficient operation. This makes it an excellent choice for experimentation. And also enable users to observe and understand high-voltage principles while maintaining a reliable and secure environment. Elevate your projects with this versatile high-voltage generator, perfect for education institute, research lab. Features High Voltage Output for Varied Applications: The DC 3V-6V to 1000KV high voltage generator also contain a remarkable high voltage output. This capability opens the door to a wide range of experimental setups, scientific projects, and practical applications where such high voltage are important. Versatile Compatibility with Input Range: Operating easily within the input voltage range of 3.6V to 6V. This module offers versatility and compatibility with different power sources. This adaptability ensures its applicability across a diverse array of electronic projects. Compact and Space-Efficient Design: With dimensions 50mm x 30mm x 25mm, the module compact design provide easy integration into various electronic setups. Its space efficient form factor is ideal for projects with size constraints. Precision with Adjustable Output: The module provides users with the flexibility to fine-tune the output voltage according to specific project needs. This adjustability ensure precision in voltage control, catering to the needs of different applications. Enhanced Safety through Built-in Protection: This module prioritizes it by incorporating built in protection mechanism. These feature prevent over loading and ensure a secure and reliable high voltage generation experience. Specifications: Specification Value Input Voltage (V) 3.3V~5V DC Maximum Operating Current (A) 2 – 5 Max. Output Voltage 1000 KV Max. Output Current (A) 0.5 A Discharge Time 10s Color Black Length (mm) 8.8 Width (mm) 2.67 Height (mm) 2.3 Weight (gm) 45 Efficiency Up to 93% Main application of this DC 3V-6V to 1000KV step up high voltage generator High-Voltage Experiments and Demonstrations: This versatile DC 3V-6V to 1000KV Boost Step up Power Module is perfect for safely conduct a wide range of high voltage experiment. This module also use an important tool for showcase the principle of high voltage in a controlled environment. Education tools: Elevate your physics and electronics education with the inclusion of this module in class room activities. The adjustable high voltage output allows students to explore various aspects of electricity. And foster a hands on learning experience that enhance knowledge. Powering Electronic Projects: Integrate this module into your electronic projects that demand a reliable and adjustable high voltage power source. Its compact design and efficiency make it perfect to power various electronic applications where precise control over voltage is crucial for optimal project performance. Captivating Static Electricity: Capture the attention of audiences with captivating static electricity demonstrations. This module provides the necessary power to create visually striking and education displays. Research and Development in Electric Engineering: For professionals in electric engineering and researcher. This module also use a valuable asset in research and development. Its efficiency and versatility make it an ideal tool for testing projects in the field of electric engineering. Package Includes: 1 x 1000KV Step Up Power Module
150mm PVC Heat Shrink Sleeve for Lithium Battery Pack – 1 Meter
[Sleeves] This is a blue color 150mm 1 meter PVC Heat Shrink Sleeve for Lithium battery Pack. It can be used to protect, insulate and hold your battery packs to provide stability, electrical insulation, mechanical protection, sealing, and strain relief. Features: Operating Temperature: -10C-+105C; Fit for: AA Battery Pack (Battery Not Included); Country of Manufacture: Made In INDIA Material: PVC; Net Weight: 300g Package Content: 1 x PVC Heat Shrink Tubing; Main Color: Blue Wall Thickness: 0.15mm (Before Shrinkage); Rated Voltage: 300V; Transversal Heat Shrinking Ratio: 40-45%; Longitudinal Heat Shrinking Ratio: 5-10%; . Shrinking Temperature: 90-100C Specifications: Brand Name Generic Colour Sky Blue Number of Items 1 Part Number 150mm Package Includes: 1x 150mm 1 meter PVC Heat Shrink Sleeve for Lithium Cell Pack.
T Handle Connector for SB50 Anderson Connector – Grey
[Power Connector] T-Handle for SB50 Anderson Connector The T-Handle for SB50 Anderson Connector is a durable and convenient accessory designed to make connecting and disconnecting SB50-style 2-pole power connectors easier. Its ergonomic T-shaped design provides a firm grip and improved leverage, allowing the connector to be removed smoothly without pulling directly on the cables. ⭐ Key Features Designed for SB50 Anderson-style connectors Ergonomic T-shaped handle Provides a firm and comfortable grip Makes connector removal easier Helps reduce strain on connector cables Easy bolt-on installation Durable construction Suitable for frequent connector connection/disconnection 📋 Technical Specifications Product Type: Anderson Connector T-Handle Compatible Connector: SB50 Connector Type: 2-Pole Rated Current: Up to 50A for SB50 Handle Type: T-Shape Pull Handle Color: Grey Mounting: Bolt-On Application: Connector Insert & Pull 🔧 Applications Battery Packs Solar Power Systems Inverters UPS Systems Electric Vehicles Golf Carts Electric Scooters Trailers Caravan & RV Systems Automotive Power Connections DIY Battery Projects 📦 Package Includes 1 × T-Handle for SB50 Anderson Connector Mounting Bolts Nuts
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
TPA3110D2 2x15W Class-D Stereo Audio Amplifier Board 12V Digital Power Amplifier Module
[Amplifier Board] The TPA3110D2 Audio Amplifier Module is a compact and high-performance Class-D stereo amplifier board designed for efficient audio amplification. Based on the TPA3110D2 amplifier IC, it delivers clear sound quality, low distortion, and excellent power efficiency. In addition, the module can provide up to 15W per channel, making it suitable for powering bookshelf speakers, DIY Bluetooth speakers, multimedia systems, and portable audio projects. As a result, it offers powerful and reliable audio performance while maintaining low power consumption. Because of its Class-D architecture, the amplifier generates less heat compared to traditional analog amplifiers. Furthermore, its compact size makes integration easy in custom audio projects and space-constrained applications. The board includes built-in protection features such as over-temperature, short-circuit, and under-voltage protection. Moreover, it supports a wide operating voltage range, allowing compatibility with batteries, adapters, and DC power supplies. This amplifier module is widely used in Bluetooth speakers, home audio systems, multimedia speakers, portable sound systems, and DIY electronics projects. 🔹 Key Features Based on TPA3110D2 amplifier IC Class-D high-efficiency amplifier design Stereo audio output Up to 2×15W output power Low distortion and low noise Wide DC operating voltage range Built-in protection circuits Compact and lightweight module design Suitable for DIY audio projects 🔹 Technical Specifications Amplifier IC: TPA3110D2 Amplifier Type: Class-D Digital Amplifier Output Channels: Stereo (2 Channel) Output Power: 2 × 15W (Max) Supply Voltage: DC 8V – 18V Recommended Voltage: 12V DC Speaker Impedance: 4Ω – 8Ω Efficiency: Up to 90% Signal-to-Noise Ratio (SNR): >100dB THD+N: <0.1% Protection Features: Overcurrent, Overtemperature, Short Circuit Protection PCB Type: Audio Amplifier Module 🔹 Applications This amplifier module is suitable for: DIY Bluetooth speakers Home audio systems Multimedia speaker systems Portable speaker projects Battery-powered audio devices Educational electronics projects DIY amplifier builds 🔹 Package Includes 1 × TPA3110D2 Stereo Audio Amplifier Module
LM358P PDIP-8 High Gain Operational Amplifier
[Logic Gates IC] Description These devices consist of two independent, high-gain, frequency-compensated operational amplifiers designed to operate from a single supply over a wide range of voltages. Operation from split supplies also is possible if the difference between the two supplies is 3 V to 32 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. The low supply-current drain is independent of the magnitude of the supply voltage. Note: Product may vary from images shown in terms of brand name according to the availability. Package Includes: 1 x LM358P PDIP-8 High Gain Operational Amplifier
1.5-Inch 40mm Speaker – 4Ω 2W with Neodymium Magnet
[Speakers] 1.5-Inch 40mm Speaker – 4Ω 2W with Neodymium Magnet The 1.5-Inch 40mm Speaker with Neodymium Magnet is a compact and lightweight audio driver designed for DIY electronics, portable speakers, multimedia devices, toys, alarms, embedded systems, and other space-constrained audio applications. Featuring a neodymium magnet, this speaker provides a compact magnetic structure while maintaining efficient audio performance. With a 40mm (1.5-inch) speaker size, 4Ω impedance, and 2W power rating, it is suitable for small audio amplifier projects and compact electronic devices. Its lightweight construction makes it particularly suitable for portable applications where space and weight are important considerations. ⭐ Key Features 40mm (1.5-Inch) speaker size 4Ω impedance 2W power rating Neodymium magnet Compact and lightweight design Clear and balanced sound output Suitable for low-power audio applications Easy to integrate into compact enclosures Ideal for DIY and embedded electronics Suitable for portable audio devices 📋 Technical Specifications Product Type: Mini Full Range Speaker Speaker Size: 40mm (1.5 Inch) Diameter: 40mm Impedance: 4Ω Power Rating: 2W Magnet Type: Neodymium Speaker Type: Dynamic / Full Range Mounting: Enclosure / Panel Mount Application: Compact Audio & Embedded Electronics 🔧 Applications DIY Speaker Projects Mini Bluetooth Speakers Portable Audio Devices Multimedia Devices Toys and Educational Kits Alarm and Notification Systems Intercom Systems Embedded Electronics Smart Gadgets Replacement Speaker Applications Mini Amplifier Projects OEM Electronic Products 🛠️ Installation Connect the speaker to a compatible audio amplifier designed for a 4Ω load. Ensure that the amplifier's output power is suitable for the speaker's 2W rating. Mount the speaker securely inside the enclosure to reduce unwanted vibration and improve sound performance. 📦 Package Includes 1 × 40mm (1.5-Inch) 4Ω 2W Speaker with Neodymium Magnet ⚠️ Precautions Match the 4Ω impedance with the amplifier output. Do not exceed the 2W rated power. Do not apply direct DC voltage to the speaker. Ensure correct polarity during installation. Avoid moisture and excessive dust. Do not apply pressure to the speaker cone or diaphragm. Mount securely to prevent vibration and unwanted noise. Use a compatible amplifier for best performance.
18650 3.7V 1800mAh Lithium-Ion Rechargeable Cell – Good Quality
[Lithium Battery Cell] Good Quality ICR18650 3.7V 1800mAh Li-Ion Rechargeable Battery Cell The ICR18650 3.7V 1800mAh Lithium-Ion Rechargeable Battery Cell is a cylindrical rechargeable battery suitable for portable electronics, DIY battery packs, power banks, lighting projects and other compatible applications. Cell colour and printing may vary from the images shown. The cell will be shipped randomly according to available stock. ⭐ Key Features Nominal voltage: 3.7V Capacity: 1800mAh Rechargeable Li-ion battery 18650 cylindrical form factor Flat-top terminal High energy density Compact and lightweight Low self-discharge No memory effect Suitable for single-cell and multi-cell battery packs Cell colour and printing may vary depending on stock 📋 Technical Specifications Battery Type: Lithium-Ion (Li-ion) Model/Format: ICR18650 Cell Size: 18650 Nominal Voltage: 3.7V Capacity: 1800mAh Nominal Energy: Approximately 6.66Wh Cell Shape: Cylindrical Terminal Type: Flat Top Rechargeable: Yes Memory Effect: No Dimensions: Approximately 18 × 65mm Colour: May vary Printing/Brand: May vary 🔋 Battery Configuration Examples 1S: 3.7V nominal / 4.2V fully charged 2S: 7.4V nominal / 8.4V fully charged 3S: 11.1V nominal / 12.6V fully charged 4S: 14.8V nominal / 16.8V fully charged For multi-cell battery packs, use properly matched cells with an appropriate BMS/protection circuit and charger. 🎯 Applications Power banks DIY lithium battery packs Portable electronics LED lighting projects Bluetooth speakers Electric toys Small UPS systems Electronic DIY projects Rechargeable portable devices ⚠️ Important Safety Notes Do not short-circuit the battery. Do not charge above 4.2V. Use a suitable Li-ion charger. Do not reverse the polarity. Do not puncture, crush, open or damage the cell. Keep away from excessive heat and fire. Do not mix old and new cells or significantly different cells in the same pack. For multi-cell battery packs, use properly matched cells and a suitable BMS. Actual discharge capability depends on the specific cell and batch; verify the cell's discharge rating before using it in high-drain applications. Cell colour and printing may be different from the images shown. Actual cell will be shipped randomly. Images are for illustrative purposes only. Actual product may vary. 📦 Package Includes 1 × ICR18650 Lithium-Ion Rechargeable Battery Cell – 3.7V 1800mAh
Out of stockIRF740 MOSFET – 400V 10A N-Channel Power MOSFET TO-220
[Mosfet] IRF740 MOSFET – N-Channel Transistor IRF740 is type of N-Channel enhancement mode power field effect transistors which are using planar, DMOS technology. This advanced technology has been especially tailored to minimize on-state resistance, provide superior switching performance, and withstand high energy pulse in the avalanche and commutation mode. These devices are well suited for high efficiency switch mode power supplies and electronic lamp ballasts based on half bridge.. Specifications Drain-Source Volt (Vds): 400V Drain-Gate Volt (Vdg): 400V Gate-Source Volt (Vgs): 20V Drain Current (Id): 10A Power Dissipation (Ptot): 125W Type: N-Channel Features Low gate charge Low Crss (typical 35 pF) Fast switching 100% avalanche tested Improved dv/dt capability Lead-Free, RoHS Compliant
Out of stockOSELTECH 3800 MAH RECHARGEABLE BATTERY ( PACK OF 2 PCS)
[Lithium Battery Cell] 3800 mAh 18650 3.7V Lithium-Ion Battery 18650 Li-ion battery is a lithium-ion rechargeable battery and is used in high drain applications due to its superior capacity and discharge rate. The first 4 digits of 18650 indicate its dimension, i.e. 18mmx65mm, and the last 5th digit indicates its shape, i.e. cylindrical. Li-ion batteries can usually boost a 300-500 charge cycle. Features : High energy density High working voltage for single battery cells. Pollution-free Long cycle life No memory effect Capacity, resistance, Voltage, platform time consistency is good. Good consistency and low self-discharge. Lightweight, small size Shape: Cylindrical Battery Battery Type: Lithium-Ion Battery High performance and capacity Flat top to suit many devices fitting. Weight 85gms Package Includes : 2 x Lithium-Ion 18650 Rechargeable Cell 3.7V 3800mAh