The Molex 51021 series wiring harness represents a high-density, precision-engineered cable solution designed for applications demanding compact connectivity. Featuring a 1.25mm pitch, these connectors enable dense circuit designs in space-constrained environments, with circuit options spanning 2 to 15 pins—part numbers like 51021-0200 to 51021-1500 cater to diverse signal and power requirements. Ultra-fine 26AWG to 32AWG wires provide exceptional flexibility and weight reduction, making them ideal for intricate device internals or wearable technology.

Color-coded wires (red, black, white, blue, yellow, green) facilitate quick circuit identification, reducing installation errors. The connectors’ robust design ensures secure mating and resistance to vibration, critical for automotive, medical, or aerospace applications. Our factory leverages over a decade of expertise to deliver custom solutions, from shielded variants to complex branching harnesses, all compliant with RoHS and MIL-STD standards.

With advanced machinery and skilled engineers, we tailor each assembly to meet specific needs—whether optimizing wire lengths for drones or ensuring EMI shielding for medical devices. The 51021 series excels in miniaturized electronics, offering a reliable bridge between PCBs, sensors, and actuators. Its scalability supports both prototyping and mass production, empowering OEMs to innovate in IoT, robotics, and beyond. Choose this harness for precision, durability, and seamless integration in next-gen compact designs.