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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Digital Multimeter
7 functions, 19 ranges. DC voltage 200mV–1kV, AC voltage 200–750V, DC current 200µA–10A, resistance 200–2MΩ, transistor & diode test.
Out of stockDigital Multimeter DT-830D
Basic 3½ digit DMM, DC/AC voltage + current, resistance, hFE, diode test. Probes included.
Out of stockUNI-T UT61E True-RMS Multimeter
True-RMS 22000-count DMM, USB data logging, autorange. Bench-grade.
Type-C PD/QC/AFC Fast Charge Decoy Trigger Module – 5V/9V/12V/15V/20V Fixed Output
[Step UP Buck Converter] Type-C PD/QC/AFC Fast Charge Decoy Trigger Module – 5V/9V/12V/15V/20V Fixed Output The Type-C PD/QC/AFC Fast Charge Decoy Trigger Module is a compact USB Type-C power negotiation module designed to request a selected voltage from compatible USB Type-C fast chargers and power banks. It supports QC 2.0/3.0, AFC, PD 2.0 and PD 3.0 protocols, allowing compatible USB-C power sources to provide higher voltage outputs such as 5V, 9V, 12V, 15V or 20V. This module is useful for DIY electronics projects where a USB Type-C PD/QC charger needs to be used as a DC power source for equipment that does not have native USB-C fast-charging support. ⭐ Key Features USB Type-C fast-charge decoy/trigger module Supports PD 2.0 / PD 3.0 Supports QC 2.0 / QC 3.0 Supports Samsung AFC Fixed selectable voltage output Supports 5V / 9V / 12V / 15V / 20V output options Negotiates the required voltage from a compatible charger Suitable for USB-C power banks and PD adapters LED indicators for operating/status indication Compact and lightweight PCB design Useful for DIY power supply and electronics projects Plug-and-play operation with compatible USB-C power sources 📋 Technical Specifications Product Type: USB Type-C Fast Charge Trigger / Decoy Module Input Connector: USB Type-C Input Source: USB-C PD/QC/AFC compatible charger or power bank Supported Protocols: PD2.0, PD3.0, QC2.0, QC3.0, AFC Output Voltage: 5V / 9V / 12V / 15V / 20V Output Type: DC Voltage Selection: Fixed/selectable depending on module version Indicator: LED status indicators Application: DC power conversion and fast-charge voltage triggering 🔧 Applications Converting USB-C PD chargers into DC power supplies Powering DIY electronics projects Arduino and microcontroller projects LED applications Portable electronic equipment DIY laboratory power supplies DC motors and other suitable loads Router/modem power applications where the required voltage matches Powering electronics from USB-C PD power banks Replacing conventional DC adapters with USB-C PD sources 🛠️ How It Works The module does not boost the USB voltage itself. Instead, it communicates with a compatible USB-C power source and sends the required PD/QC/AFC negotiation request. For example, when connected to a compatible PD charger, the module can request: 5V → 9V → 12V → 15V → 20V The charger then provides the negotiated voltage at the module's DC output. ⚠️ Important Notes The connected USB-C charger or power bank must support the required fast-charging protocol and voltage. A standard 5V-only USB charger cannot normally provide 9V/12V/15V/20V through this module. Always verify the selected output voltage with a multimeter before connecting your device. Do not connect a device that requires a lower voltage than the selected output. The module is a trigger/decoy board, not a standalone DC-DC boost converter. Maximum available output power/current depends on the connected USB-C charger/power bank and the module's specifications. Do not short the output terminals. 20V output can damage 5V/9V/12V-only electronics if the wrong voltage is selected. Exact selectable voltages and current capability can vary between board versions. 📦 Package Includes 1 × Type-C PD/QC/AFC Fast Charge Decoy Trigger Module
Digital Multimeter Test Leads with Ultra Sharp Needle Probe & Banana Plug CAT III 1000V 10A for SMD
[Hook up wire] The Digital Multimeter Test Lead Kit is a high-quality replacement probe set designed for accurate electrical measurements and electronic troubleshooting. Featuring ultra-sharp stainless steel needle probes, these leads allow easy access to miniature IC pins, SMD components, PCB tracks, LEDs, and other small electronic devices without causing damage. The probes are fitted with standard 4mm banana plug connectors, making them compatible with most digital multimeters, clamp meters, bench meters, and testing equipment from brands such as Fluke, Extech, Mastech, Uni-T, Victor, Sanwa, and many more. Constructed using high-quality PVC insulated cables and durable metal probes, the leads provide excellent flexibility, low resistance, and long service life. The CAT III safety rating ensures safe operation up to 1000V with a maximum current rating of 10A, making them suitable for both electronics and electrical testing. The built-in protective finger guards improve operator safety, while the flexible cables remain tangle-free during continuous testing. These probes are ideal for laboratory work, electronics repair, field service, educational laboratories, industrial maintenance, and DIY electronics projects. 🔹 Key Features Ultra-sharp stainless steel needle probes Standard 4mm banana plug connectors CAT III 1000V safety rating Maximum current rating: 10A Flexible PVC insulated cables Accurate low-resistance measurements Comfortable insulated probe handles Durable construction for long service life Compatible with most digital multimeters Ideal for PCB, SMD, IC and electrical testing 🔹 Technical Specifications Product Type: Digital Multimeter Test Leads Probe Type: Ultra Sharp Needle Probe Probe Colors: Red & Black Connector Type: 4mm Banana Plug Cable Material: PVC Insulated Probe Material: Stainless Steel / Metal Cable Length: Approx. 83cm Total Length: Approx. 103cm Maximum Current: 10A Maximum Voltage: 1000V Safety Rating: CAT III 1000V Measurement Type: Voltage, Current, Resistance, Continuity Compatibility: Most Digital Multimeters 🔹 Compatible With Fluke Multimeters Extech Multimeters Mastech Multimeters UNI-T Multimeters Victor Multimeters Sanwa Multimeters DT830 Series DT9205 Series Most multimeters with 4mm banana sockets 🔹 Applications Suitable for: Digital multimeters PCB testing SMD component testing IC pin testing LED testing Continuity testing Voltage measurement Current measurement Electronics repair Laboratory testing Industrial maintenance DIY electronics projects 🔹 Package Includes 1 × Red Multimeter Test Lead 1 × Black Multimeter Test Lead
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)
Type-C MT3608 Adjustable Dc to Dc Converter 2-24V to 5V-28V 2A
[Step UP Buck Converter] DC-DC Adjustable Boost Power Supply Module 2V–24V to 5V/9V/12V/28V 2A Type-C The DC-DC Adjustable Boost Power Supply Module is a compact step-up power conversion module designed to increase a lower DC input voltage to a higher adjustable output voltage. It supports a wide 2V–24V input range and provides an adjustable output from approximately 5V to 28V, making it suitable for battery-powered devices, microcontrollers, sensors, portable electronics and DIY power projects. With a compact 30 × 17 × 8mm design and Type-C connector, this module is convenient for projects where space and flexible power input are important. ⭐ Key Features DC-DC boost/step-up converter Wide 2V–24V input voltage range Adjustable output voltage Output options include approximately 5V, 9V, 12V and 28V Maximum output current: 2A Conversion efficiency: >93% Compact and lightweight design Type-C input connector Suitable for battery-powered applications Easy to integrate into DIY electronics projects 📋 Technical Specifications Product Type: DC-DC Boost Converter Module Input Voltage: 2V–24V DC Output Voltage: 5V–28V adjustable Maximum Output Current: 2A Peak Output Current: Up to 2A Efficiency: >93% Input Connector: USB Type-C Product Size: 30 × 17 × 8mm Weight: Approximately 4g Condition: New 🔧 Applications Arduino and microcontroller projects Raspberry Pi and electronic development projects Battery-powered devices Portable power systems GPS and sensor projects LED applications Robotics projects Motors and actuators DIY power supplies Low-voltage to higher-voltage power conversion Portable electronic equipment 🛠️ How It Works This module uses a DC-DC boost conversion circuit to increase the input DC voltage. For example: 3.7V battery → 5V output 5V input → 9V output 5V/12V input → higher adjustable output The required output voltage can be adjusted according to the application. ⚠️ Important Notes This is a boost/step-up module; the output voltage cannot be lower than the applicable input voltage range. Do not exceed the specified 24V maximum input voltage. Do not exceed the 2A maximum output current. Actual maximum output power depends on input voltage, output voltage, cooling and module operating conditions. At higher output power, adequate ventilation/cooling may be required. Always verify the output voltage with a multimeter before connecting sensitive electronics. Do not short-circuit the output. The module does not automatically regulate to 5V/9V/12V/28V; the output must be set to the required voltage. 📦 Package Includes 1 × DC-DC Adjustable Boost Module 2V–24V to 5V/9V/12V/28V, 2A, Type-C
Banana Plugs Terminal Connectors Male Red and Black Pair 4mm Good Quality
[Power Connector] 4mm Banana Plug Terminal Connectors – Male Red & Black Pair The 4mm Banana Plug Terminal Connectors are reliable and convenient connectors designed for audio equipment, industrial instruments, power testing, automotive testing, laboratory equipment, and DIY electronics projects. With a standard 4mm banana plug diameter, these connectors are compatible with most standard 4mm banana sockets and test equipment. The screw-type connector fitting allows wires to be securely connected without soldering, making installation quick, simple, and reusable. The stackable design also allows the plugs to be connected with existing 4mm banana plugs, providing greater flexibility for testing and power connections. The Red and Black color combination makes it easy to identify positive and negative connections, making these plugs suitable for power supplies, test leads, speakers, electronic instruments, and other electrical applications. ⭐ Key Features Standard 4mm banana plug diameter Red and Black male banana plug pair Screw-type wire connection No soldering required Easy installation and removal Secure and reliable electrical connection Stackable design Compatible with standard 4mm banana sockets Easy positive/negative identification Suitable for audio, testing, laboratory, and electronic applications 📋 Technical Specifications Product Type: Banana Plug Terminal Connector Connector Type: Male Banana Plug Diameter: 4mm Color: Red & Black Connection Method: Screw Terminal Soldering: Not Required Design: Stackable Current Rating: 10A Typical Voltage Rating: Typically up to 30–60V DC, depending on application Contact Type: Spring Contact Application: Audio, Power Testing & Electronics 🔧 Applications Audio Equipment Speaker Connections Power Supply Connections Laboratory Power Supplies Multimeter Test Leads Electronic Test Equipment Industrial Instruments Power Testing Automotive Testing DIY Electronics Projects Electrical Prototyping Battery Testing ⚠️ Precautions Do not exceed the connector's actual current and voltage limits. Ensure the wire is securely tightened inside the screw terminal. Always observe correct polarity when connecting DC power. Use appropriately rated wires for the desired current. Avoid short-circuiting the connector. 10A is a typical rating and should not be treated as a guaranteed manufacturer specification unless confirmed for the specific batch/model. 📦 Package Includes 1 × Red 4mm Male Banana Plug 1 × Black 4mm Male Banana Plug
Digital Multimeter Test Leads with Ultra Sharp Needle Probe & Banana Plug CAT III 1000V 10A
[Hook up wire] The Digital Multimeter Test Lead Kit is a high-quality replacement probe set designed for accurate electrical measurements and electronic troubleshooting. Featuring ultra-sharp stainless steel needle probes, these leads allow easy access to miniature IC pins, SMD components, PCB tracks, LEDs, and other small electronic devices without causing damage. The probes are fitted with standard 4mm banana plug connectors, making them compatible with most digital multimeters, clamp meters, bench meters, and testing equipment from brands such as Fluke, Extech, Mastech, Uni-T, Victor, Sanwa, and many more. Constructed using high-quality PVC insulated cables and durable metal probes, the leads provide excellent flexibility, low resistance, and long service life. The CAT III safety rating ensures safe operation up to 1000V with a maximum current rating of 10A, making them suitable for both electronics and electrical testing. The built-in protective finger guards improve operator safety, while the flexible cables remain tangle-free during continuous testing. These probes are ideal for laboratory work, electronics repair, field service, educational laboratories, industrial maintenance, and DIY electronics projects. 🔹 Key Features Ultra-sharp stainless steel needle probes Standard 4mm banana plug connectors CAT III 1000V safety rating Maximum current rating: 10A Flexible PVC insulated cables Accurate low-resistance measurements Comfortable insulated probe handles Durable construction for long service life Compatible with most digital multimeters Ideal for PCB, SMD, IC and electrical testing 🔹 Technical Specifications Product Type: Digital Multimeter Test Leads Probe Type: Ultra Sharp Needle Probe Probe Colors: Red & Black Connector Type: 4mm Banana Plug Cable Material: PVC Insulated Probe Material: Stainless Steel / Metal Cable Length: Approx. 83cm Total Length: Approx. 103cm Maximum Current: 10A Maximum Voltage: 1000V Safety Rating: CAT III 1000V Measurement Type: Voltage, Current, Resistance, Continuity Compatibility: Most Digital Multimeters 🔹 Compatible With Fluke Multimeters Extech Multimeters Mastech Multimeters UNI-T Multimeters Victor Multimeters Sanwa Multimeters DT830 Series DT9205 Series Most multimeters with 4mm banana sockets 🔹 Applications Suitable for: Digital multimeters PCB testing SMD component testing IC pin testing LED testing Continuity testing Voltage measurement Current measurement Electronics repair Laboratory testing Industrial maintenance DIY electronics projects 🔹 Package Includes 1 × Red Multimeter Test Lead 1 × Black Multimeter Test Lead
Out of stockDigital Multimeter Small Yellow Color LCD AC DC Measuring Voltage Current
[Measuring Instruments] A multimeter or a multitester, also known as a VOM (Volt-Ohm meter), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter would include basic features such as the ability to measure voltage, current, and resistance. Analog multimeters use a microammeter whose pointer moves over a scale calibrated for all the different measurements that can be made. Digital multimeters (DMM, DVOM) display the measured value in numerals, and may also display a bar of a length proportional to the quantity being measured. Digital multimeters are now far more common than analog ones, but analog multimeters are still preferable in some cases, for example when monitoring a rapidly-varying As the name suggests it is the multifunction device for all your testing need for daily work. When testing DC voltage, AC voltage, DC current, resistance, diode, buzzer, and battery, connect the red test lead to “VΩmA” jack and black test lead to “COM” jack, whereas When you need to test the current more than 200mA, connect the red test lead to “‘ 10A≡” jack and black test lead to “COM” jack. And When while testing the temperature, connect the temperature probe to “VΩmA” jack or “COM” jack. When testing the magnifying ratio of the transistor, turn the switch to hFE position and connect the transistor to the eight hole jack available in blue color. For the Square wave output, the frequency is 50Hz, the voltage is approximately 3Vp-p. The output jack is “VΩmA” and “COM” Description Table: Features : Small size makes it comfortable in many areas Brand new product. Good for newbies with basic knowledge of VI. No warranty on this product. No replacement or refund on this product Package Include: 1 x Digital Multimeter Small Yellow color and LCD display 2 x Measuring Probes(Red and Black)
Metal Alligator Prong Clips Electrical Clamp 50 mm
[Power Connector] The 50mm Metal Alligator Clip (Crocodile Clip) Set is a durable electrical test accessory designed for temporary electrical connections in testing, measurement, and prototyping applications. Manufactured from high-quality conductive metal with insulated protective sleeves, these clips provide excellent electrical conductivity and secure clamping performance. The spring-loaded wide-opening jaws firmly grip wires, terminals, battery posts, PCB test points, and other electrical contacts, making them ideal for use with multimeters, power supplies, battery chargers, laboratory equipment, and DIY electronic projects. The insulated red and black protective covers help identify positive and negative connections while providing additional safety during operation. Their compact size and lightweight design make them suitable for hobbyists, technicians, students, and professionals. 🔹 Key Features High-quality metal alligator clips Strong spring-loaded jaws Wide opening for secure grip Insulated protective covers Excellent electrical conductivity Durable corrosion-resistant construction Easy wire attachment by soldering or crimping Lightweight and compact Suitable for low-voltage electrical testing Reusable and long service life 🔹 Technical Specifications Product Type: Alligator Clip / Crocodile Clip Material: Nickel-Plated Steel Insulation Material: PVC Clip Length: 50mm Available Sizes: 40mm (Short) / 50mm (Long) Jaw Type: Spring Loaded Color: Red & Black Weight: Approx. 8g (Pair) Connection Type: Crimp / Solder Application: Electrical Testing & Temporary Connections 🔹 Applications Suitable for: Digital multimeters Power supplies Battery testing Arduino projects Raspberry Pi projects Electronics prototyping Laboratory experiments School science projects DIY electronics Automotive electrical testing PCB testing Temporary electrical connections 🔹 Package Includes 1 × Red 50mm Alligator Clip 1 × Black 50mm Alligator Clip
Banana Jack Plug Connector and Socket 4mm Male and Female (2 Pair)
[Terminal Connector] 4mm Banana Plug Connector Socket – Red & Black The 4mm Banana Plug Connector Socket Set is a high-quality electrical connector set designed for quick, convenient, secure, and reliable connections in electronic and electrical applications. The set includes red and black banana plug/socket connectors, making it easy to identify positive and negative connections. The 4mm banana plug design provides a secure electrical connection while allowing quick insertion and removal. It is suitable for speaker wires, test leads, power supplies, laboratory equipment, electronic testing, audio equipment, and automotive applications. ⭐ Key Features 4mm banana plug and socket connector Red and Black color combination Easy identification of positive and negative connections Quick and convenient connection Secure and reliable electrical contact Suitable for approximately 2mm–5mm diameter wire Easy to connect and disconnect Compact and reusable design Ideal for audio and electrical testing applications 📋 Technical Specifications Product Type: Banana Plug & Socket Connector Set Connector Size: 4mm Color: Red & Black Set Type: Plug + Socket Compatible Wire Diameter: Approx. 2mm–5mm Connection Type: Banana Plug / Socket Application: Electrical & Electronic Connections 🔧 Applications Power Supply Connections Audio Equipment Speaker Connections Electronic Test Equipment Laboratory Equipment Industrial Instruments Automotive Testing Multimeter Test Leads DIY Electronics Projects Electrical Prototyping 📦 Package Includes 1 × Red 4mm Banana Plug and Socket 1 × Black 4mm Banana Plug and Socket
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 stockTP4056 18650 3.7V 4.2V Battery Charging Module with Integrated DC Boost Converter module
[Lithium Battery Protection Board] 18650 Lithium-Battery Board DC-DC Step Up Boost Module TP 4056 This module is a small single cell lithium battery charging module that also includes a 1A step-up (boost) converter for powering a large range of applications. The module will charge most types of a single cell (3.7) LiPo batteries from either 4 to 7.5V power supply input, or from a standard 5V USB port/adapter. A battery charge and standby LED are also included for visual indication. Besides battery charging capabilities this module also includes an adjustable boost converter which is capable of stepping up the attached battery voltage from 4.5 to 24V with a maximum supply current of 1A. Features: High-quality integrated circuits. Exquisite detail and long service life. Module TP4056 DIY kit parts. Can be used for multimeter, converted to lithium-battery charging. Specification: Product code: HCMODU0131 Input Voltage (USB): 5V Input Voltage (IN): 4 – 7.5V Battery type: LiPo 3.7 Default charging current: 1000mA Output voltage (VOUT): 4.5 – 24V Max output current (VOUT): 1A Dimensions: 33mm x 24mm Charging voltage: 4.2V DC Charging current: max. 1A Discharging current: max. 2A Package size: 45 * 45 * 20mm / 1.77 * 1.77 * 0.79in Package weight: 11g / 0.39ounces
LM2596 DC-DC Buck Converter 4.5-40V to 3-35V Adjustable Step Down Module
[Step Down Buck Converter] Introducing a high-performance DC to DC Step Down Adjustable Power Supply Module, built upon the newly developed LM2596S Wide Range Switching Regulator. With dimensions approximately 43 x 20 x 14 mm and a color as shown in the picture, this module offers reliable and efficient power regulation. Key Specifications: – Full Load Temperature Rise: 40°C – Load Regulation: ± 0.5% – Voltage Regulation: ± 0.5% – Dynamic Response Speed: 5% in 200uS – Input Voltage: 4.50-40V – Output Voltage: Adjustable in the range of 1.50-35V – Output Current: Rated at 2A, with a maximum of 3A (Additional heat sink required for maximum output) – Conversion Efficiency: Up to 92% (Efficiency increases with higher output voltage) – Switching Frequency: 150KHz – Rectifier: Non-Synchronous Rectification – Module Properties: Non-isolated step-down module (buck) – Short Circuit Protection: Current limiting, with automatic recovery – Operating Temperature: Industrial grade (-40 to +85°C) for output power of 10W or less Features: Adjustment method: first correct input power (between 4.5-50V) then multimeter to monitor the output voltage and adjust potentiometer (usually clockwise turn boost, buck turn counterclockwise), Input: IN+ input positive IN- input negative Output: OUT+ output positive OUT- output negative Static power consumption is only about 6mA. Connection: Welding, plus pin can be directly soldered after the PCB. Short circuit protection: current limiting, thermal protection, self-recovery. Non-isolated step-down (BUCK) switching regulator. Short circuit protection: Current limiting, self-recovery Potentiometer adjustment direction is as Clockwise (increase) and Anti-clockwise (decrease) Non-synchronous rectification Package Includes : 1 x LM2596 DC-DC Buck Converter 4.5-40V to 3-35V