Molex KK 254 2.54mm Connector

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Molex KK 254 2.54mm Connectors — Housings, Headers, Crimp Terminals & Cable Assemblies The Molex KK 254 series (2.54mm pitch) is the industry-standard wire-to-board connector for Arduino GPIO headers, PC fan connectors, and breadboard-compatible PCB layouts. With a 3A per contact rating and a universal 2.54mm pitch, KK 254 is one of the most widely deployed connector families in consumer electronics, PC hardware, industrial control, and prototyping worldwide. Products in This Collection 2695-NN Socket Housings — Wire-side plug, 2 to 24 circuits, natural nylon 22-23-2021 PCB Headers — Top-entry through-hole headers, tin-plated contacts 2759 Crimp Terminals — AWG #22–#26, tin-plated, for 2695 housings Pre-Crimped Cable Assemblies (MX5264 / KF2510) — Single-head, same-side, reverse-side; 22AWG UL1007, 2–12 pin Connector Kits — Assorted housings, headers and terminals for prototyping and repair Key Specifications Pitch: 2.54mm | Circuits: 2–24 pin Current rating: 3A per contact | Voltage: 250V AC/DC Wire gauge: AWG #22–#26 | Temperature: −25°C to +85°C Material: PA66 nylon housing | Contact: tin-plated brass Compliance: UL recognized · RoHS2 compliant Why Choose Molex KK 254? ✅ Universal 2.54mm pitch — compatible with Arduino, Raspberry Pi GPIO, PC fans and breadboards ✅ Positive latch lock — secure mating, vibration resistant ✅ Wide wire gauge range — AWG #22–#26 for signal and light power wiring ✅ Available as housings-only, headers-only, crimp terminals, or complete cable assemblies ✅ RoHS2 compliant — suitable for consumer and industrial electronics Typical Applications Arduino, ESP32, Raspberry Pi GPIO and development board connections PC fan, case connector and motherboard wiring Breadboard-compatible PCB prototyping and lab benches Industrial signal and control panel wiring LED driver and power supply board connections 3D printer stepper motor and endstop wiring