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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
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
30A BLDC ESC Electronic Speed Controller with Connectors
[ESC] 30A BLDC ESC Electronic Speed Controller is specifically made for quadcopters and multi-rotors. Which provides faster and better motor speed control giving better flight performance compared to other available ESCs. 30A BLDC ESC Electronic Speed Controller can drive motors that consume current up to 30A. It works on 2-3S LiPo batteries. This electronic speed controller offers a battery eliminator circuit (BEC) that provides 5V and 2A to the receiver so we don’t need an extra receiver battery. This version of the ESC also includes backward-polarity protection and protection on the 5V receiver line, this means that if you accidentally attach a battery backward it won’t destroy your motor controller and other BEC won’t affect the ESC. If you are wandering to build a drone and don’t know what will be the best ESC for you then worry no more, we have got your back. At , we have everything for you to get started with your drone project. This particular ESC is recommended with A2212 brushless motor (1000kv, 1400kv, 2200kv). For your Convenience Same ESC without Connectors is also available Connections: 30A ESC wiring (Other products not included in this package): Warning: When we connect BLDC ESC directly to the remote control receiver; never ever switch off the remote control before switching off power to the BLDC ESC. Depending on the model of the remote control; it may result in full throttle applied to the motor and it will rotate at full speed. Features: High-quality MOSFETs for BLDC motor drive. Backward-polarity protection and protection on the 5V receiver line. High-performance microcontroller for best compatibility with all types of motors at greater efficiency. Fully programmable with any standard RC remote control. Heat sink with a high-performance heat transmission membrane for better thermal management. 3 start modes: Normal / Soft / Super-Soft, compatible with fixed-wing aircraft and helicopters. We can configure the throttle range to be compatible with any remote control available in the market. Package Includes: 1 x 30A BLDC ESC Electronic Speed Controller with Connectors.
1S 3.7V Li-ion 1MOS 2A Battery Protection Board
[Lithium Battery Protection Board] The 1S 3.7V Li-ion 1MOS 2A Battery Protection Board is designed for single-cell lithium-ion batteries. It provides essential overcharge, over-discharge, and overcurrent protection to ensure battery longevity and safety. The board supports up to 2A of continuous current, making it suitable for low-power applications. Its single MOSFET structure ensures efficient power control. Compact and lightweight, it is ideal for portable electronics. Easy to integrate into battery packs, it enhances battery reliability. Features: Style：2A 1MOS Overcharge Protection Over-discharge Protection Overcurrent Protection Single MOSFET Design Compact and Lightweight Low Standby Power Consumption Easy Integration Package Includes: 1 x 1S 3.7V Li-ion 1MOS 2A Battery Protection Board
12.6V 2A Lithium-ion Battery charger for 18650/26700 NMC Battery Pack with CC and CV
[Adaptor Power Supply] The 12.6V 2A Li-ion Battery Pack Smart Charger is a high-performance SMPS-based charging solution designed specifically for 3S (11.1V nominal) lithium-ion battery packs. Delivering a stable constant output voltage of 12.6V and a constant charging current of 2A, this charger ensures fast, efficient, and safe charging for lithium battery systems. Built with advanced control circuitry, the charger automatically switches between constant current (CC) and constant voltage (CV) charging modes to protect the battery and maximize its lifespan. The built-in cooling fan provides excellent heat dissipation, allowing continuous operation under heavy load. For maximum safety, the charger features output overload and short-circuit protection. In case of a fault, the charger enters an auto-restart protection mode, alternately enabling and disabling the power MOSFET until the fault condition is removed — effectively protecting both the charger and the battery pack. With a wide AC input range of 100–270V, this charger works reliably in Indian and international power conditions. Its compact table-top design with C14 socket input makes it ideal for DIY battery packs, power backup systems, robotics, solar storage, and portable energy solutions. ⭐ KEY FEATURES ✔ Designed for 3S Lithium-Ion Battery Packs (12.6V charging)✔ Constant Voltage & Constant Current Charging (CC/CV Mode)✔ Output: 12.6V DC, 2A (25W)✔ Built-in Overload & Short-Circuit Protection with Auto Restart✔ Cooling Fan for efficient heat dissipation✔ Wide Input Voltage Range: 100–270V AC✔ High efficiency & stable output✔ Ideal for DIY battery packs, robotics, solar & backup systems 🔧 TECHNICAL SPECIFICATIONS Category: Lithium-Ion Battery Charger (SMPS) Wattage: 25W Output Voltage: DC 12.6V Output Current: 2A Charging Mode: Constant Voltage / Constant Current (CV / CC) Input Voltage: AC 100 – 270V Input Frequency: 47 – 63 Hz Input Current: 0.69 A Single Output: 12.6V / 2A Socket Type: C14 Cooling: Built-in Cooling Fan Operating Temperature: Up to 85°C 🎯 APPLICATIONS 3S lithium-ion battery packs DIY power banks & battery projects Robotics & automation systems Solar energy storage UPS & backup battery charging Electric mobility & embedded systems 📦 PACKAGE INCLUDES 1 × 12.6V 2A Table Top Smart 25W Lithium-Ion Battery Charger
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
3.2V BMS 1S 6A LFP 32650 4MOS Lithium Battery Protection Board
[Lithium Battery Protection Board] 🟦 3.2V BMS 1S 6A LFP 32650 4MOS Lithium Battery Protection Board Upgrade your LiFePO4 battery packs with the 3.2V 1S 6A BMS (Battery Management System) featuring a high-reliability 4-MOSFET protection circuit. Designed specifically for 32650 and 3.2V LFP single-cell lithium batteries, this protection board ensures long battery life, safe operation, and stable performance under various load conditions. The intelligent BMS module provides overcharge, over-discharge, overcurrent, and short-circuit protection, making it ideal for DIY battery packs, solar power systems, LED lighting, small motors, backup power, and custom electronics. With a compact, efficient, and durable design, this BMS offers excellent value for your LFP battery projects. ⭐ Key Features 1S LiFePO₄ Protection: Designed for 3.2V LFP batteries such as 32650/32700 single cells. 6A Continuous Discharge Current: Stable performance suitable for most medium-load devices. Advanced 4-MOS Protection: Ensures low resistance, high efficiency, and improved reliability. Full Safety Protection: Includes overcharge, over-discharge, overcurrent, and short-circuit protection. Compact & Easy to Use: Simple wiring makes it ideal for DIY power packs and electronics projects. High Durability: Built with premium components for long life and consistent performance. 🔧 Technical Specifications Type: 1S LiFePO4 Battery Protection Board Battery Type: 3.2V LiFePO₄ (LFP) Single Cell Continuous Discharge Current: 6A Protection Circuit: 4 MOSFET Overcharge Protection Voltage: ~3.60V (typical) Over-Discharge Protection Voltage: ~2.0–2.2V Overcurrent Protection: Yes Short-Circuit Protection: Yes Balancing: No (Standard 1S BMS) Application: 32650/32700 cell packs, DIY LFP projects, solar backup systems, LED drivers, portable devices 🎯 Best Uses 3.2V LFP battery packs 32650/32700 cell protection Solar energy storage Portable electronics & DIY projects LED lights & emergency lamps Robotics & embedded systems Power banks & backup supplies Wiring instructions: 3.2V and 3.7V wiring methods are consistent; B+ is connected to the positive terminal of the battery. B- Connected to the negative pole of the battery. P+ is the positive input of the battery pack input P- is the negative input of battery pack output Specification: 3.2V lithium iron phosphate battery protection board 4MOS: Overcharge detection voltage: 3.75±0.05V Overcharge release voltage: 3.75±0.05V Overdischarge detection voltage: 2.1V±0.1V Upper limit continuous current: 6A Overcurrent detection current: 7A Charging voltage: 3.6V Product size: ~35 * ~8 * ~2.2MM Package Include: 1 x 3.2V BMS 1S 6A LFP 32650 4MOS Lithium Battery Protection Board.
1S 12A 18650 3.7V lithium battery protection plate 6 MOS
[Lithium Battery Protection Board] Nowadays Li-ion batteries are most popular to be used in many indoor and outdoor gadgets, these batteries are preferred due to their high charge storage capacity. such batteries are widely used in today’s portable devices. they are compact, more efficient and have a high energy intensity compared to other types of batteries. One drawback of such a battery is that we need to continually monitor their charging and discharging process if we do not do this, it badly affects battery life and also reduces the charge storing capacity. If we discharge such battery below certain voltage range, then the battery cell has a high risk of damage and if we overcharge such battery then it may explode. To overcome such issues, we can use battery protection and battery charging circuits such as this product. This is Li-ion single-cell charger/protection circuit which can be used to charge a single cell of 15 Amp capacity or 2500Mah parallel-connected 5 to 6 li-ion cells. In this MOSFET are employed to do the monitoring task which protects our battery cells from overcharge, over-discharge, and from short circuit. Protection : Overcharge protection. over-discharge protection. short circuit protection. overcurrent protection. Wiring instructions: B+ battery is positive. B- battery negative. P+ outputs the positive input for the battery pack. P- outputs the negative electrode for the battery pack. Specifications and Features : Overcharge detection voltage : 4.25 + 0.05V. Over charge release voltage : 4.23 + 0.05V. discharge detection voltage : 2.45 + 0.1V. Ceiling continuous current : 12A. Overcurrent detection current : 15A. Input Charging voltage : 4.2V. IC components : DW01+8205A. Package Includes : 1 x 1S 18650 3.7V lithium battery protection plate 6 MOS.
Small Aluminium Heat Sink for TO-220 Package Black
[Aluminium Heat Sink] Heat Sink-TO220 Package- Black Anodized Heatsink to dissipate heat from any TO-220 package like 7805 voltage Regulators, Mosfets, transistors, etc. Generally used to keep voltage regulators and motor drivers cool, and efficient, and increases the reliability of the components. Feature/Specs: Package: TO220 PI49 Material: Aluminum Color: BLACK Processing method: Extruded Uses in Regulator, Mosfet, IGBT, High Power Transistor, IC, VGA, LED, RAM, Prevents overheating of the board, etc. Absorbs heat quickly Fast cooling High-temperature dissipation Quantity of blade: 4 Size: 22mm Blade thickness: 1mm Dimensions: 22 x 16 x12.5mm Approx Weight: 17gm Package Includes: 1x Heat Sink-TO220 Package-PI49 Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
4S 100A LiFePO4 Lithium Battery Protection Balance Charging BMS Protection PCB Board
[Lithium Battery Protection Board] ⚡ 4S 100A LiFePO₄ BMS Protection Board with Cell Balancing (White PCB) 4S LiFePO₄ Battery Management System • 100A Protection • Active Cell Balancing • Temperature Protection The 4S 100A LiFePO₄ Battery Management System (BMS) Protection Board is a high-performance protection circuit designed specifically for 4-cell (4S) 12.8V LiFePO₄ battery packs. It provides comprehensive protection against overcharging, over-discharging, over-current, short circuits, and temperature abnormalities, ensuring safe and reliable battery operation. Equipped with 15 ultra-low resistance MOSFETs and an integrated cell balancing function, the BMS helps maintain equal voltage across all four battery cells, improving battery efficiency, performance, and service life. The onboard balancing circuit automatically equalizes cell voltages during charging, reducing cell imbalance and maximizing battery capacity. This BMS supports both common port (same port) and separate charge/discharge (different port) configurations. In common-port mode, it supports up to 60A continuous charge and discharge, while in separate-port mode it supports 80A continuous discharge and 60A charging. The board also includes a temperature sensor interface for additional safety. Designed exclusively for 4S LiFePO₄ (3.2V) battery packs, this protection board is not compatible with 3.7V Li-ion, Lithium Polymer (Li-Po), or ternary lithium batteries. ⭐ Features Designed specifically for 4S LiFePO₄ battery packs High-current 100A protection design Built-in automatic cell balancing Over-charge protection Over-discharge protection Over-current protection Short-circuit protection Temperature protection interface Ultra-low resistance MOSFET design Supports common-port and separate-port wiring Low power consumption Easy installation and wiring Improves battery safety and lifespan 📋 Technical Specifications Product Type: LiFePO₄ Battery Management System (BMS) Battery Configuration: 4S (4 Cells) Battery Chemistry: LiFePO₄ (3.2V Cells Only) Maximum Protection Current: 100A Continuous Discharge Current (Separate Port): 80A Continuous Discharge Current (Common Port): 60A Maximum Charging Current: 60A Balancing Function: Yes Balance Current: 50mA Balance Voltage Accuracy: 3.355V–3.455V Overcharge Protection Voltage (Per Cell): 3.61V–3.69V Overcharge Recovery Voltage: 3.50V–3.60V Overcharge Detection Delay: 1.5–2.5 Seconds Over-discharge Protection Voltage (Per Cell): 2.27V–2.43V Over-discharge Recovery Voltage: 2.45V–2.65V Over-discharge Detection Delay: 0.5–1.5 Seconds Short-Circuit Protection: Yes Short-Circuit Detection Delay: 100–600µs Short-Circuit Recovery: Disconnect Load Temperature Protection: Yes (Temperature Sensor Interface) MOSFET Configuration: 15 Ultra-Low Resistance MOSFETs 🔧 Applications Suitable for: 12.8V LiFePO₄ Battery Packs Solar Energy Storage Systems Portable Power Stations Electric Scooters Electric Bicycles Backup Power Systems UPS Battery Packs Marine Battery Systems Caravan & RV Power Systems DIY LiFePO₄ Battery Packs Robotics Projects Industrial Battery Systems Battery Repair & Maintenance 📦 Package Includes 1 × 4S 100A LiFePO₄ Battery Management System (BMS) Protection Board – White PCB ⚠️ Note Compatible only with 4S (12.8V) LiFePO₄ battery packs. Do NOT use with 3.7V Lithium-ion (18650), Li-Po, LiMn, LiCoO₂, or ternary lithium batteries. Ensure correct wiring according to the BMS connection diagram before use. Product color, PCB layout, and component placement may vary slightly depending on the manufacturing batch. All product images are for illustration purposes only.
Mini MP1584 DC-DC 3A Adjustable Buck Module
[Step Down Buck Converter] The Mini MP1584 DC-DC 3A Adjustable Buck module is ultra small adjustable 0.8V to 20V output DC to DC step-down Buck converter that uses an MP1584EN high frequency switching regulator and integrated high voltage power MOSFET. It features a soft start, thermal shutdown, and under-voltage lockout (UVLO) to protect the module from operating at insufficient supply voltage. Small size, lightweight, low internal power consumption, and wide input voltage range of 4.5V to 28V make this module suitable for a variety of different applications where small size and lightweight voltage conversion is needed, including RC cars and airplanes, quadcopters, robotics, Arduino modules, and DIY devices. Applications: DIY 8051 / AVR / ARM / PIC / Arduino / Raspberry-Pi projects Robotics Breadboard power supply Manual speed adjustment of small DC motors Power Supply for RC project planes, cars, helicopters Universal Battery Elimination Circuit (UBEC) for 2S-6S lipo battery pack Receiver/servo power supply Communications equipment power supply Mobile equipment power supplies Note: PCB board color may be different from the actual product. Features: Wide 4.5V to 28V Operating Input Range High-Efficiency Pulse Skipping Mode for Light Load Ceramic Capacitor Stable Internal Soft-Start Internally Set Current Limit without a Current Sensing Resistor
Out of stockAluminum Heat Sink for TO-220 Mosfet Transistor
[Aluminium Heat Sink] A heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device. It allows the regulation of the device's temperature at an optimal level. In computers, heat sinks are use to cool central processing units or graphics processors. If heat dissipation ability of the component itself is insufficient to maintain it's temperature; then Heat sinks are use with high-power semiconductor devices. An Aluminum heatsink is the most widely used product for thermal solutions. Features: Excellent corrosion resistance Low weight Non-magnetic Easy to recycle Great addition to your hobby craft tool kit. Perfect Product for your safety and Lab supply. Good for many applications include industrial, laboratory, personal, and hobbies. Package includes This is the pack of 1 piece of 2cm x 1.5cm Aluminium heatsink for TO-220 Mosfet transistor
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
Small Aluminium Heat Sink for TO-220 Package
[Aluminium Heat Sink] Small Aluminium Heat Sink for TO-220 Package The Small Aluminium Heat Sink for TO-220 Package is a compact passive cooling component designed for TO-220 package transistors, voltage regulators, MOSFETs, and other low-power semiconductor devices. It helps transfer heat away from the electronic component and dissipate it into the surrounding air, helping maintain a safer operating temperature. A matching product listing confirms that this heatsink is intended for low-power dissipation and includes a mounting hole for securing a transistor or voltage regulator. Its compact size makes it particularly useful where PCB space is limited. The heatsink is made from aluminium and has a 1mm material thickness, with overall dimensions of 15 × 9 × 19mm. ⭐ Key Features Designed for TO-220 package components Made from aluminium Compact and lightweight construction Suitable for low-power heat dissipation Helps reduce semiconductor operating temperature Mounting hole for securing compatible components Suitable for transistors, voltage regulators and similar devices Easy to install on electronic components Ideal for PCB and DIY electronics projects 📋 Technical Specifications Product Type: Aluminium Heat Sink Application: TO-220 Package Material: Aluminium Length: 15mm Width: 9mm Height: 19mm Thickness: 1mm Dimensions: 15 × 9 × 19mm Weight: Approximately 1g Mounting: Screw Mount Heat Dissipation: Passive / Natural Convection Application Type: Low-Power Semiconductor Cooling The dimensions and approximately 1g weight are listed by the corresponding product listing. 🔧 Applications TO-220 Transistors Voltage Regulators MOSFETs Power Transistors Linear Regulators Small Power Supply Circuits Arduino Projects DIY Electronics PCB Projects Embedded Electronics General Semiconductor Cooling 🛠️ Installation Place the heatsink against the heat-producing surface of the compatible TO-220 component and secure it through the mounting hole using an appropriate screw and nut. For improved thermal transfer, a suitable thermal interface material or thermal compound can be used between the component and heatsink where appropriate. Ensure that the heatsink does not accidentally create an electrical short between component terminals or other PCB traces. 📦 Package Includes 1 × Small Aluminium Heat Sink for TO-220 Package ⚠️ Precautions Use only with components that are mechanically compatible with the heatsink. Ensure the heatsink is securely mounted. Check for possible electrical contact between the heatsink and component terminals. Use thermal compound or an appropriate thermal interface where required. This is intended for low-power heat dissipation; higher-power applications may require a larger heatsink or forced-air cooling.
10A 300W DC-DC Step-Down Adjustable Constant Voltage & Constant Current Module XL4016
[Step Down Buck Converter] 10A 300W DC-DC Step-Down Adjustable Constant Voltage & Constant Current Module XL4016 The 10A 300W DC-DC Step-Down Adjustable Constant Voltage & Constant Current Module is a high-power adjustable buck converter designed for applications requiring regulated output voltage and controlled output current. It can be used as a high-power LED driver, battery charging module, regulated power supply, and vehicle power supply. The module features independent CV (Constant Voltage) and CC (Constant Current) adjustment using onboard 3296 multi-turn potentiometers, allowing precise adjustment of the output voltage and current. A dual heatsink design helps dissipate heat from the power components during high-power operation. With a maximum advertised power rating of up to 300W, the module is suitable for high-power applications when adequate cooling and an appropriate input supply are provided. For continuous high-current operation, additional forced-air cooling is recommended. ⭐ Key Features Up to 300W output power 10A maximum output current Adjustable constant voltage and constant current CV and CC independent adjustment Output voltage continuously adjustable Typical output voltage range: 1.25V–35V High-power DC-DC step-down/buck converter Dual heatsink design for improved heat dissipation Independent heatsink for MOSFET/Schottky diode section 3296 multi-turn potentiometers for precise adjustment High-frequency capacitors for reduced output ripple Large Sendust core Double pure-copper winding Suitable for LED driver and battery charging applications Additional cooling recommended for continuous high-power operation 📋 Technical Specifications Product Type: DC-DC Step-Down Buck Converter Function: Constant Voltage / Constant Current Maximum Output Power: Up to 300W Maximum Output Current: 10A Recommended Continuous Current: Up to approximately 8A with additional cooling Output Voltage: Continuously adjustable, approximately 1.25V–35V Minimum Voltage Difference: Approximately 1V Adjustment: CV / CC Multi-Turn Potentiometers Potentiometer Type: 3296 Multi-Turn Operating Temperature: -40°C to +85°C Output Ripple: Approximately 50mV under the stated test conditions Cooling: Dual Heatsink Additional Cooling: Cooling fan recommended for continuous high-power operation Converter Type: Step-Down / Buck 🔧 Applications High-Power LED Driver Constant Current LED Power Supply Lithium Battery Charging Lead-Acid Battery Charging Ni-Cd / Ni-MH Battery Charging 6V Battery Charging 12V Battery Charging 14V Battery Charging 24V Battery Charging Solar Panel Power Systems Wind Generator Applications Vehicle-Mounted Power Supply Laptop Power Supply Regulated DC Power Supply Low-Voltage Power Supply Systems 🎛️ CV & CC Adjustment The module has two independent multi-turn adjustment potentiometers: CV (Constant Voltage): Adjusts the required output voltage. CC (Constant Current): Adjusts the maximum/constant output current. Turn the potentiometers clockwise to increase and anticlockwise to decrease the corresponding setting. Use a reliable multimeter while adjusting the output voltage and current. 🔋 Battery Charger Application Determine the required battery charging voltage and charging current. Connect a suitable DC input supply to the module while observing correct polarity. Use the CV adjustment to set the required charging voltage. Use the CC adjustment to set the required charging current. Connect the battery to the output while observing correct polarity. Monitor the charging process and ensure the voltage and current remain within the battery manufacturer's specifications. 💡 Constant Current LED Driver Application Determine the LED's required operating current and maximum operating voltage. Adjust the output voltage to a low safe level before connecting the LED. Use the CC adjustment to set the required LED current. Adjust the CV setting according to the LED's required operating voltage. Connect the LED and verify the output voltage and current with a multimeter. 🛠️ Adjustment Instructions If the output voltage initially follows the input voltage and cannot be adjusted, turn the appropriate potentiometer counterclockwise for multiple turns and then adjust again. Turn the adjustment potentiometers clockwise to increase and anticlockwise to decrease. Always use a multimeter when setting voltage or current. The potentiometer closest to the output side is specified for CC/current adjustment. The potentiometer closest to the input side is specified for CV/voltage adjustment. 📦 Package Includes 1 × 10A 300W DC-DC Step-Down Adjustable Constant Voltage & Constant Current Module ⚠️ Precautions This is a step-down (buck) converter; the input voltage must be higher than the required output voltage. Do not exceed the module's maximum voltage, current, or power limits. 300W is the maximum advertised power rating; actual continuous power depends on input voltage, output voltage, current, efficiency, and cooling. For continuous high-current operation, use a cooling fan with the heatsink. Do not short-circuit the output. Observe correct input and output polarity. Use appropriate protection when charging batteries. Never leave a battery charging unattended. Ensure the module's heatsink does not become excessively hot during operation.
Out of stockIRF540N (TO-220-3) MOSFET
[Mosfet] The IRF540N (TO-220-3) MOSFET from International Rectifier is 100V single N channel HEXFET power MOSFET in TO-220AB package. This MOSFET features extremely low on-resistance per silicon area, dynamic dv/dt rating, rugged, fast switching and fully avalanche rated as a result, power MOSFET is well known to provide extremely efficiency and reliability which can be used in wide variety of applications. Features: Drain to source voltage Vds is 100V Gate to source voltage is ±20V On Resistance Rds(on) of 44mohm at Vgs of 10V Power dissipation Pd of 130W at 25°C Continuous drain current Id of 33A at Vgs 10V and 25°C Operating junction temperature range from -55°C to 175°C Applications: Power Management, Industrial, Portable Devices, Consumer Electronics. Package Includes: 1 x IRF540N (TO-220-3) MOSFET
IRF3205 MOSFET
[Mosfet] The IRF3205 MOSFET from International Rectifier is 100V single N channel HEXFET power MOSFET in the TO-220AB package. This MOSFET features extremely low on-resistance per silicon area, dynamic dv/dt rating, rugged, fast switching and fully avalanche rated as a result, power MOSFET is well known to provide extremely efficiency and reliability which can be used in a wide variety of applications. Features: Gate to source voltage is ±20V On-Resistance Rds(on) of 8mohm at Vgs of 10V Power dissipation (Pd) of 130W at 25°C Continuous drain current (Id) of 110A at Vgs 10V and 25°C Operating junction temperature range from -55°C to 175°C Applications: Power Management, Industrial, Portable Devices, Consumer Electronics. Package Includes: 1 x IRF3205 MOSFET
Out of stockIRFZ44N MOSFET IC DIP
[Mosfet] IRFZ44N Power MOSFETIRFZ44N is an advanced HEXFET Power MOSFETs that utilizes advanced processing techniques to achieve extremely low on-resistance per silicon area. This benefit, combined with the fast switching speed and ruggedized device design that exFAT power MOSFETs are well known for, provides the designer with an extremely efficient and reliable device for use in a wide variety of applications. The TO-220 package is universally preferred for all commercial-industrial applications at power dissipation levels to approximately 50 watts. The low thermal resistance and low package cost of the TO-220 contribute to its wide acceptance throughout the industry. Specification: Application: Electronic Continuous Drain Current: 49A Power Dissipation: 94W Pulsed Drain Current: 160A Features: Advanced Process Technology Ultra-Low On-Resistance Dynamic DV/DT Rating 175 DegreeC Operating Temperature Fast Switching Fully Avalanche Rated Datasheet: Download Package Content: 1 x IRFZ44N Mosfet
TP5100 4.2v and 8.4v Dual One/Two Battery Protection Board
[Lithium Battery Protection Board] TP5100 4.2v 8.4v Single Double Lithium Battery Charge Management Lion Battery Compatible 2A Charging Board is a double switch buck 8.4V, single cell 4. 2V lithium battery charge management chip. Its ultra-compact QFN16 package and simple external circuit, making TP5100 ideal for portable equipment so large current charging management applications. Meanwhile, TP5100 built-in input overcurrent, under-voltage protection, over-temperature protection, short circuit protection, battery temperature monitoring, reverse battery protection. TP5100 has 5V-15V wide input voltage, dual battery trickle charge into pre-charge, constant current, constant voltage three-phases, pre-charge current trickle charge current through an external resistor adjustment, the maximum charge current up to 2A. TP5100 with a frequency of 400kHz switching mode makes it possible to use a smaller outer Suo device and the large current charging still maintains a smaller amount of heat. TP51OO built-in power PMOSFET, anti-intrusion circuit, so no anti-intrusion protection and another external Schottky diode. You can check our others BMS. Click here TP5100 4.2v and 8.4v Dual OneTwo Battery Protection Board Features: Input voltage: 5-15V DC power supply. Charge status: full and unloaded blue lights, charging red. Double 8.4v / 4.2v lithium rechargeable single . Programmable charge current. 0. 1A-2A . Programmable steady precharge current 10% -100%. Wide operating voltage, maximum reach I8V. Red and green LED charge status indicator. Chip temperature protection, overcurrent protection, under voltage protection. Battery temperature protection, reverse battery shutdown, short circuit protection. Switching frequency 400Khz, usable inductance 20uH and more. PWR_ON Power battery for switching control. Package Includes: 1 x TP5100 4.2v 8.4v Single Double Lithium Battery Charging Board.
Out of stockXL6009 DC-DC Step-Up Converter Performance Ultra LM2577 Booster Circuit Board
[Step UP Buck Converter] This CN6009 XL6009 DC – DC Step-up converter module is a non-isolated step-up (boost) voltage converter featuring adjustable output voltage and high efficiency. The module uses the second generation of high-frequency switching technology XL6009E1 core chip performance than the first generation technology LM2577. XL6009 boost module at a lower cost, superior performance. It equips 4A high-efficiency MOSFET switches, so as to provide a conversion efficiency of up to 94%. High switching frequency 400KHz, you can use a small -capacity filter capacitors that can achieve very good results, the ripple is smaller and smaller Pins IN+ input positive IN- input negative! OUT+ output positive OUT- output negative Features : The performance is much higher than LM2577. Non-isolated Boost converter. It has a non-synchronous rectifier. Small and Handy voltage regulator module. Package Includes : 1 x CN6009 XL6009 DC-DC Step-up converter module.