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Molex connector

A Molex connector is an electrical connector widely used in power applications for computers, LED lighting, and other electronic devices. The name comes from the company Molex , which developed these connectors. They are robust, easy to connect, and suitable for both low voltage and high currents.

Features of Molex connectors

  • Versatile : Used for power and signal transmission in various electronics applications.
  • Robust design : Often made of plastic with sturdy metal pins.
  • Multiple Pin Configurations : Available in 2-pin, 4-pin, 6-pin, and more.
  • Lock : Some variants have a click mechanism to prevent loosening.
  • Suitable for higher currents : Often used for applications up to 10A per pin.

Commonly used types of Molex connectors

  1. Molex 4-pin (Peripheral Power Connector)

    • Known from desktop computers, used to power hard drives, CD/DVD drives and fans.
    • Voltage: +5V (red wire) and +12V (yellow wire), with two black ground wires .
    • Used for LED lighting in computers and industrial applications.

  2. Molex Mini-Fit Jr. (6 and 8 pin)

    • Widely used in PC power supplies (ATX) for GPUs and motherboards.
    • Also used in industrial LED drivers and power supplies.

  3. Molex PicoBlade (1.25mm pitch)

    • A compact version, used for LED strips and small electronics.
    • Particularly in automotive and battery-powered applications.

  4. Molex Micro-Fit (3.0mm pitch)

    • A smaller alternative to Mini-Fit Jr.
    • Suitable for LED controllers, automotive LED lighting and drones.

  5. Molex KK (2.54mm pitch)

    • Widely used in printed circuit boards (PCBs) for signal and power connections.
    • Sometimes used in LED drivers and dimmers.

What are Molex connectors used for?

  • LED lighting (power supply of LED strips and modules)
  • Computers (power supplies, GPUs, and hard drives)
  • Automotive (LED lighting in vehicles)
  • Industrial applications (power and signal connections)
  • Printed circuit board interconnections (PCBs) in consumer electronics

If you want to use a Molex connector for LED lighting, it's important to consider the number of pins, the current capacity, and compatibility with your power supply or driver.