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ProCircFix

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When purchasing a product, price is the consumer's primary concern. At present, ProCircFix has 21 products for sale. ProCircFix products range in price from $7.99 to $12.99, and the average price of all the products is about $9.84. It's affordable for most consumers, and you can feel free to pick your favorite products.

You can confidently purchase ProCircFix products from the seller Xiangyang Yaxun. The brand holds an average rating of 5, testifying to its excellent reputation.

ProCircFix Best Sellers

Last Updated: Jan 9, 2026

ProCircFix 100-piece 10-Model Type-C USB 3.1 Charging Dock Port Connector Kit, 6-pin & 16-pin, for Mobile Phone & Other Electronic Product Repair

Rich Specifications: The 100-piece set includes 10 types of Type-C USB 3.1 charging dock connectors, with 6-pin and 16-pin mixed configurations to adapt to various devices. The tape-and-reel packaging eliminates worries about pin deformation and oxidation.
Interface Type: Adopting the Type-C USB 3.1 interface, it supports high-speed data transmission and fast charging, and is used for repairing and replacing interfaces of devices such as mobile phones, PDAs, and GPS.
Durable and Sturdy: Stable insertion and extraction force (insertion force 10-35N), low contact resistance (≤30mΩ), rated current 3A, rated voltage 60V, suitable for daily charging and data transmission.
Wide Compatibility: Compatible with various devices such as MP3 players, digital video cameras, mobile phone printers, and keyboards.
Welding Method: Using flux for soldering reduces welding difficulty, prevents oxidation, ensures full and firm solder joints, and facilitates smoother maintenance operations.

40 - Piece 5.08mm Pitch PCB Terminal Block Set, 2/3/4/5 - Pin Plug - in Screw Terminals (0.2inch) Vertical Female Socket

Product Type: 2-pin, 3-pin, 4-pin, 5-pin straight plug-in terminal block connector kits ;Material: Plastic
Rating: AC 300V 10A 24-12AWG.It is widely used in electronics, communication equipment, instruments and meters,Automatic Panel Mounting.
EASY INSTALLATION: The straight plug-in design allows for quick and secure mounting onto PCBs (Printed Circuit Boards) via screw terminal connections. The vertical female socket design ensures stable installation on vertical PCBs, making it ideal for space-constrained layouts. Widely used in electronics, communication equipment, instruments, and other related fields.
Spacing: 5.08 millimeters / 0.2 inches;
The set includes: 40 screw-type terminal block connectors (male headers and female sockets) (8 sets of 2-pin, 7 sets of 3-pin, 3 sets of 4-pin, and 2 sets of 5-pin); 1 easy-to-use screwdriver.

ProCircFix 50-Piece 10mm LED Diode Kit (10 Pieces for Each of 5 Colors) - Compatible with Arduino/Low-Voltage Circuits, high-Brightness F10 diffused Light-Emitting diode Combination

Precise 5-color configuration: Including 10mm diameter LEDs, with 10 each of red/yellow (1.8 - 2.2V) and blue/emerald green/white (2.8 - 3.2V). It covers diverse color needs and is suitable for electronic production and Arduino projects.
Low-voltage compatibility & safety: Red/yellow LEDs are suitable for 2V circuits; when connected to a 3V circuit, a 51-68Ω resistor in series is required. Blue/emerald green/white LEDs are suitable for 3V circuits; corresponding resistors should be used for higher voltages to ensure circuit safety and extend component lifespan.
High-brightness and durable design: Adopting diffused light-emitting technology, the light is soft yet bright. With a compact size, it is easy to install and has a long service life, suitable for scenarios such as equipment indicator lights and model decorations.
Plug-and-play pins: Featuring standard-spaced pins, they can be easily inserted into breadboards or soldered onto PCBs. Whether for experiments or circuit construction, they can be quickly secured, allowing even beginners to get started efficiently.
Wide range of applications: Suitable for Arduino development, electronic DIY (smart device lighting effects), school experiments, and creative decorations (models/Christmas holiday lights). It inspires creativity and combines practicality with fun.

XL4016 DC-DC Buck Converter, 5V/12V/15V/24V Adjustable, 4-38V to 1.25-36V 8A High Power with Display, Step-Down Module for DIY/Automation

**Wide Voltage Compatibility, Usable in Multiple Scenarios**: With an input of DC 4 - 38V and an output of DC 1.25 - 36V, it can stably step down the voltage to supply power for electronic experimental equipment (such as Arduino development boards), modification of small household appliances (routers, fans), and DIY electronic projects (self - made power banks, LED light sets), being suitable for various voltage - demand scenarios.
**High Current Capacity, Efficient and Stable**: With a maximum output of 8A (recommended 5A for long-term operation) and 95% high-efficiency conversion, plus a 180KHz switching frequency, it provides stable power for high-power devices (such as small power amplifiers) and multi-load parallel circuits (multi-channel LED driving), reducing heat loss and ensuring long-term reliable operation.
**Intuitive Digital Display for Precise Regulation**: The 0.36-inch 3-digit red digital tube displays voltage in real time. When debugging electronic circuits (sensor power supply calibration) or setting device operating voltages (Bluetooth modules, single-chip microcomputers), no additional instruments are needed. It allows intuitive monitoring of the output status and precise parameter adjustment.
**Wide Temperature Operation with Strong Environmental Adaptability**: Operating temperature range of -45℃ to +85℃ enables stable voltage step-down in extreme temperature scenarios, including outdoor electronic devices (vehicle-mounted appliances, field monitoring modules) and industrial environments (automation control units), addressing challenges of complex environments.
**Simple Design for Easy Integration and Installation**: With a compact circuit board layout and built-in terminal blocks, it can be easily connected to circuit systems. Whether for professional electronic maintenance (repairing device power modules), mass modification of electronic equipment, or personal creative DIY projects, it enables quick integration and simplifies the wiring process.

ProCircFix 20 Sets USB 3.1 Type-C Male Connector Kit for DIY Data Charging Cables with 20 Housings 10 Black + 10 White, 10 4Pad & 10 5Pad PCBs

Rich Set Configuration: Contains 20 sets of USB 3.1 Type-C male connectors, with 10 sets in black and 10 sets in white respectively. It meets the needs of diverse appearance design and is suitable for different project styles.
Diverse PCB Boards: Equipped with 10 pieces of PCB boards with 4 - solder - joint CC wires and 10 pieces of PCB boards with 5 - solder - joint CC wires, all made of copper. They meet different circuit connection and soldering requirements and provide flexible options for electronic production.
High - quality Materials: The conductive body of the connector is made of copper, which has excellent conductivity, ensures high - speed and stable data transmission, reduces transmission loss, and realizes fast charging function.
Durable and Damage-Resistant: The copper material endows the product with good mechanical strength, which can withstand frequent plugging and unplugging without easy damage. It has strong oxidation resistance, adapts to various environments, extends service life, and ensures long-term stable use.
Wide Application: Suitable for DIY production, maintenance and upgrading of various electronic devices, such as data charging cables for mobile phones, cameras, tablets, toys, etc., meeting the needs of electronic enthusiasts, engineers and other different groups.

2-Pack 12V Latching Relay Module, Press Start/Stop, w/Screwdriver

**12V Bistable Control Logic** Press once to start, press again to stop – stays locked. Ideal for home appliances, lighting, factory equipment control.
**2 - Pack Kit + Screwdriver** Comes with 2 relay modules (50×25.5×19mm, 300mm wires) + 1 screwdriver. All - in - one for DIY/industrial setups.
**Reliable Performance Specs** Handles 250V 10A AC / 30V 10A DC (avoid 2000W long - term). Anti - interference & reverse - polarity protection included.
**Easy Installation & Testing** Panel - mountable, pre - wired design. Built - in test button checks stability. Perfect for quick DIY/industrial deployments.
**Wide Compatibility** Works with external switches/sensors (low - level trigger). Suits home automation, industrial control systems.

ProCircFix 15PCS 4 Types USB Type - C DIY Connector Kit, 2.54mm Pitch USB C Adapter for Data Transfer & Power Supply, Compatible with USB 2.0 Devices, Repair/Welding/DIY Projects

Comes with 15 pieces in 4 different USB Type - C connector styles. Abundant quantity and variety meet diverse DIY, repair, and project needs.
Features 2.54mm pitch, enabling easy connection to breadboards or other standard 2.54mm pitch components. Simplifies circuit building and modification.
Works well with USB 2.0 devices, supporting data transfer and power supply. Ideal for projects requiring USB C connectivity with USB 2.0 standards.
Suitable for device repair and welding tasks. Allows for convenient replacement or integration of USB C connectors into your devices or projects without complex procedures.
Perfect for DIY enthusiasts. Great for creating custom USB C cables, building electronic prototypes, or upgrading existing devices with USB C functionality.

60-Piece 12-Types Micro USB Female Socket Kit with Soldering Flux, 5-Pin Sockets & USB Adapters for Mobile Phone Toy Circuit Board Welding Maintenance (Solder Dip SMD SMT)

**Rich Specifications, Thoughtful Configuration**: The set contains 60 Micro USB female connectors, with a total of 12 types, 5 pieces for each type. With sufficient quantity and diverse types, it meets the repair, DIY and replacement needs of devices with Micro - USB such as mobile phones and PDAs. It is also equipped with soldering flux to facilitate smoother soldering. Moreover, it adopts tape-and-reel packaging, which effectively prevents pin deformation and oxidation and ensures the quality of components.
**Compact and Efficient, Excellent Transmission**: Micro USB supports the USB OTG function and various transmission modes, is compatible with High - Speed (HS) and even higher - speed data transmission, improves the device connection efficiency, and provides stable support for data interaction and peripheral expansion.
**Durable and Reliable, Superior Quality**: Featuring a stainless steel shell design, it can withstand frequent plugging and unplugging. The flat terminals and robust soldering plates ensure long-term stable use. The tape-and-reel packaging further enhances protection, reducing the risks of pin damage and oxidation, and extending the service life of the components.
**Wide Adaptability, Diverse Scenarios**: Suitable for small devices and the computer field, such as mobile phone repair, PDA maintenance, USB interface replacement for digital cameras/digital players, as well as USB-related projects for cameras, set-top boxes, game consoles, etc. A practical tool for electronic repair shops and DIY enthusiasts, easily addressing interface issues of various devices.
**Welding-Friendly, Easy to Operate**: The included soldering flux optimizes the welding process, simplifying USB interface replacement and repair operations. The tape-and-reel packaging keeps components from scattering or getting damaged.

20-Piece IC L7805CV Kit 5V Output Voltage Regulator, Linear Positive Regulator (L7805), TO-220 Package

Rich kit configuration: Includes 20 L7805CV voltage regulators (5V/1.2A, TO-220 package), along with 20 470Ω 1/4W resistors, 20 104 capacitors, 20 334 capacitors, and 20 colored LEDs. One set meets the requirements for basic circuit voltage regulation and components.
Stable voltage regulation performance: The L7805CV outputs a stable 5V voltage, supports 1.2A current, and is equipped with thermal overload and short-circuit protection, providing reliable power supply for the circuit and reducing the risk of voltage fluctuations.
Adaptable to multiple scenarios: Suitable for PCB integration, breadboard experiments, electronic DIY production (such as Arduino power supply, small project modification), helping to build stable DC circuits.
Parameter range: The L7805CV has an input voltage of 6.5 - 35V DC and an output of 5V ±2%. It is recommended to install a heat sink when operating at high output; the LED colors are randomly assigned for added interest.
Plug-and-play advantage: The component specifications are matched (TO-220 package is compatible with general circuit boards), no additional adaptation is required, allowing even beginners to get started quickly and improving the efficiency of circuit construction.

5pcs 3.3V Buck Converter Module, DC 4.5-24V to 3.3V Voltage Regulator, Mini Power Supply, Suitable for 9V/12V/24V Conversion (3.3V-DC)

Wide voltage compatibility applies to 4.5V - 24V input (compatible with 5V/9V/12V/24V power supplies), stably outputting 3.3V. It can supply power to microcontrollers, sensors, etc., with a maximum current of up to 1.8A.
Compact and Space - Saving with Ultra - Small Size: 17.5×12×4.5 mm. Easily fit into the narrow spaces of DIY, embedded or portable projects.
Stable power supply with low ripple (< 30mV) and a switching frequency of 1MHz - 1.5MHz. It keeps the power supply clean and protects devices from voltage fluctuations.
Load Protection Instructions For motors/servos (inductive loads), a diode and a capacitor must be added to prevent damage.
5-Pack Great Value: Includes 5 Modules Ideal for hobbyists/makers to build multiple circuits or expand projects.

4 Sets of 50cm 24AWG USB Male-to-Female Jumper Wires with Alligator Clips, Power Cables, USB Port Testing Adapter Wires, and Alligator Clip Cable Testing

Convenient Connection Design: It is equipped with a communication cable that has 2 alligator clips for male USB and 2 alligator clips for female USB. It is compatible with various device interfaces, enabling easy power connection. Whether it is for experimental equipment or small appliances, it can be flexibly applied.
Distinct Positive and Negative Pole Markings: It adopts the classic red and black color scheme, where red represents the positive pole and black represents the negative pole. The markings are clear and eye-catching, which significantly reduces the probability of incorrect wiring, ensures the safe operation of the equipment, and makes the operation simple and convenient.
Purpose: It can quickly convert any 5V DC power supply into a USB power supply. The USB power supply can be quickly connected to any 5V device via alligator clips, providing a temporary and reliable power source.
Note: The maximum output voltage is 5V, and the output current ranges from 2A to 5A. There is no voltage regulation function inside the USB.
Super Value Packaging Configuration: Each set includes 2 sets of male USB to alligator clip test cables and 2 sets of female USB to alligator clip test cables, meeting diverse usage requirements and providing backup solutions to offer comprehensive support for your work and experiments.

20-Piece 4-Value Linear Voltage Regulator kit (LM317 1.5A L7805 L7809 L7812 1.2A), TO-220 Package, Suitable for Electronic Circuit Voltage Regulation

Precise 4-value configuration: Contains 20 voltage regulators in TO-220 package, including LM317T (1.5A), and 5 pieces each of L7805CV/L7809CV/L7812CV (1.2A), covering common voltage regulation scenarios.
Plug-and-play: Standard TO-220 package, compatible with breadboards/PCBs, no additional design required, allowing even beginners to get started quickly.
Stable output: The LM317T enables flexible voltage regulation (1.5A), while the L78 series stably outputs the corresponding voltage (1.2A), ensuring reliable power supply for circuits.
Multi-scenario adaptation: Suitable for Arduino/Raspberry Pi power supply, power supply production, equipment modification and teaching experiments, meeting the needs of multiple projects.
Classified storage: Individually packaged / comes with a storage box, making storage and access convenient and keeping the operation tidy.

17-Piece 5.08mm Pluggable Screw Terminal Block Kit (2/3/4 Pins) with Screwdriver, Compatible with 12-28AWG, 300V 10A

Product Type and Specifications: The set contains 17 screw terminal connectors, including 10 pieces of 2-pin, 4 pieces of 3-pin, and 3 pieces of 4-pin, along with 1 screwdriver. It features a 5.08mm pitch, is compatible with 12-28AWG cables, and has a rated voltage of 300V and a rated current of 10A, meeting various wiring needs.
Premium Material: The main body is made of PA66 plastic, featuring good insulation and durability. The screws and nuts are made of tinned brass and high-quality steel, ensuring excellent conductivity and sufficient strength. Color: Green
Convenient to Use: No complicated welding process is required. Installation and disassembly can be easily completed by fixing with screws, suitable for both novices and professionals.
Wide Application Scenarios: Suitable for wiring of various electronic devices such as general-purpose PCB boards, power modules, computers, automatic control systems, household appliances, and alarm devices. It provides a practical connection solution for electronic project construction, equipment maintenance, etc.
Temperature Adaptability: It can work stably within the temperature range of -40℃ to +105℃, meeting the wiring needs of electronic equipment under different environmental conditions.

ProCircFix 4PCS 30cm 14AWG DC Power Pigtail Cables (2 Male + 2 Female, 5.5mm x 2.1mm) with 30cm 4:1 Heat Shrink Tubing, for 9V/12V/24V/36V Devices, CCTV Security Cameras

Comes with 4 × 30cm 14AWG DC power pigtail cables (2 male + 2 female, 5.5mm×2.1mm) and 1 × 30cm 4:1 heat shrink tubing, meeting power connection and insulation needs.
14AWG wires enable large current flow, handling more power than regular cables. Ensures stable power for 9V/12V/24V/36V devices like CCTV cameras.
5.5mm×2.1mm connectors connect to power/devices easily. Pre - stripped, tinned wire ends simplify soldering/installation. Red (positive) and black (negative) wires avoid mix - ups.
The 30cm 4:1 heat shrink tubing can be cut freely. Heated, it shrinks tight around wires, keeping out moisture, dust and short circuits for longer - lasting connections.
Perfect for DIY power projects and equipment upkeep. Works with 9V/12V/24V/36V devices, CCTV systems, LED strips, routers, laptops, car gadgets, and more with 5.5mm×2.1mm DC plugs.

2.54mm XH Connector Socket Kit - Pre-Crimped Cables, 2/3/4/5/6/7-Pin Housing, Male & Female Connectors, Compatible with JST-XH Connector Standards

The kit includes 90 pre-crimped cables, 1 heat shrinkable tube, and 1 pair of tweezers. No manual crimping needed—start using it right away. It's also compatible with JST-XH connector standards, fitting devices that use this common connector type.
Comes with 2-pin, 3-pin, 4-pin, 5-pin, 6-pin, and 7-pin housings/sockets. Meets different electrical connection requirements for various projects.
Includes both male and female cable connectors. Easily connects electrical circuits between different devices, no extra adapters required.
Pre-crimped cables are 22 AWG soft silicone wires (13cm/5.12in). Ensures stable electrical connection and reduces signal transmission failures.
No crimping tools needed—just insert pins into the housing. Perfect for Lipo battery balance wires, 3D printers, circuit boards, LED lights, and electronic toys. Great for setups needing JST-XH compatibility (no interface modification required).

ProCircFix 4 Pack 14AWG 30cm SAE Extension Cable + SAE Connector, Quick Disconnect for Automotive DC Power, Solar Battery Connection, Motorcycle

All - in - One SAE Kit: 4×30cm 14AWG cables, 2 polarity adapters & 8 quick terminals. Perfect for cars, solar setups, RVs & motorcycles—one - stop for wiring.
Durable Build: 14AWG copper cores + PVC (flame - retardant, 105℃ heat - resistant). Protects cables, lasts long.
Easy Connections: Standard SAE plugs fit most ports. Polarity adapters fix errors fast. Quick terminals speed up wiring.
Tinned Ends: Tinned tips for easy soldering/connecting. Thick, durable—great for quick disconnects, light bars, chargers.
Wide Use: Works with SAE ports: batteries, solar panels, motors, RVs, boats, etc. Suits DIY & pros.

ProCircFix 4-Pack USB 2.0 Type-A Male/Female to 4-Pin Screw Terminal Connector, Portable Plug-in Adapter

This USB repair kit works with USB-enabled devices such as USB flash drives, keyboards, mice, cameras, printers and phones. It's also ideal for device testing.
Nickel - plated ports resist friction and oxidation. Low resistance ensures stable signals and long use.
No soldering needed. Just use a screwdriver to open terminals, insert wires, and tighten. Saves time and money.
Terminals detach easily. More durable than soldering, lets you extend USB cable length. Perfect for DIY and device testing.
Pins are clearly marked. No more forgetting pin order—makes connecting easy.

200 Pieces of 100nF (0.1uF) 104 Multi-Layer monolithic Ceramic capacitors, with a pin Pitch of 5.08mm and a Rated Voltage of 50V

200-Pack Value:200 ceramic capacitors in one box. Great for hobbyists, DIYers, and pros—no frequent reorders needed.
Key Specs:100nF (0.1uF/104) capacitance, 5.08mm lead spacing, 50V rated voltage, ±10% tolerance. Stable for electronics projects.
Strong Performance:Long-life, reliable, high capacitance, heat-resistant, and well-insulated. Works for energy storage, filtering, voltage suppression.
Wide Applications:Perfect for energy storage, frequency filtering, bypassing, coupling. Blocks DC, lets AC through—fits many devices.
Easy to Use:Convenient packaging for storage.

15 Sets C45 PCB DIN Rail Mounting Bracket (35mm/15mm) with Screwdriver, Circuit Board Holder Clip for DIN Rail

15 Sets + Screwdriver: Compatible with 35mm C45 & 15mm DIN rails. Ideal for industrial control, DIY electronics to mount PCBs.
Easy Installation: Quickly attach to DIN rails or use for panel mounting. Keeps PCB setups neat and standardized.
Perfect Size: 42.6x10x19.3mm bracket fits PCBs under 100mm (L×W). 12.5mm hole distance for secure fixing.
Durable Build: High-quality material ensures long-lasting, reliable PCB holding in various environments.
Screwdriver Included: Simplifies assembly/disassembly. A handy solution for pros and DIYers alike.

27PCS 2.54mm 0.1" Pitch PCB Mount Screw Terminal Block Connector (2PIN×10, 3PIN×10, 4PIN×7 + Dedicated Screwdriver), 150V 6A, Compatible with 26-18AWG Cables

Rich configuration to meet diverse needs: The set contains 27 screw terminal blocks with a 2.54mm/0.1-inch pitch, including 10 pieces of 2-pin, 10 pieces of 3-pin, and 7 pieces of 4-pin ones, along with 1 dedicated screwdriver. It is suitable for wiring scenarios such as I/O cards and Data Acquisition (DAQ) devices. One set can address the connection needs of multiple specifications.
Stable Electrical Performance: With a rated voltage of 150V and a rated current of 6A, the screw terminals can accommodate 18AWG - 26AWG wires.
Convenient and Quick Connection: Supports quick wiring and disconnection. No complex tools are needed (using a screwdriver for installation makes it more efficient). It not only achieves firm wiring but also facilitates later equipment debugging and maintenance, improving the efficiency of electronic project construction.
Wide Device Compatibility: Compatible with devices using 2.54mm/0.1-inch connectors, suitable for Raspberry Pi A+, B+, 2B, 3B development boards, Arduino, etc. These development boards commonly use 0.1-inch pitch pins as GPIO expansion ports, enabling easy circuit expansion.
Precise PCB Mounting: Specifically designed for PCBs, the 2.54mm/0.1-inch standard pitch fits the hole positions on circuit boards, suitable for scenarios such as electronic production and equipment maintenance.

ProCircFix FAQs

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