What Is a 2.54mm Pitch Connector? The 2.54mm (0.1 inch) pitch connector is the most widely used standard in PCB design worldwide. It covers pin headers, box headers, female headers, IDC connectors, and wire-to-board connectors — all sharing the same 2.54mm center-to-center pin spacing. 2.54mm Pin Header Pin headers are the most fundamental 2.54mm connector. Available in single-row and dual-row configurations, straight (180°) or right-angle (90°), with pin counts from 1 to 80+. Common plastic heights include 2.5mm, 3.0mm, 5.5mm, and 8.5mm (double plastic / H=8.5). Hong YiAn manufactures both standard and custom pitch pin headers with brass or phosphor bronze contacts and UL94V-0 housing. Single Row: 1x2 to 1x80, straight or right-angle Dual Row: 2x2 to 2x40, straight, right-angle, or SMD Material: Housing PA66 or PA6T (high-temp), contacts copper alloy, gold or tin plated 2.54mm Box Header (IDC Box Header) Box headers are shrouded pin headers with a plastic housing that guides the mating IDC ribbon cable connector. The shroud prevents mis-mating and provides mechanical support. Standard box headers are polarized and available in 2x5 (10-pin), 2x8 (16-pin), 2x10 (20-pin), and 2x13 (26-pin) configurations for ribbon cable applications. 2.54mm Female Header (Pin Socket) Female headers (receptacle / pin socket) mate directly with male pin headers. Single and dual row, available in standard 8.5mm or low-profile 5.5mm mated height. Used extensively in Arduino, Raspberry Pi, and custom PCB stacking applications. Selecting the Right 2.54mm Connector TypeBest ForMating Part Pin HeaderBoard-to-wire, board stackingFemale housing / IDC Box HeaderRibbon cable (IDC) connectionsIDC ribbon connector Female HeaderShield stacking, Arduino shieldsPin header Why Choose Hong YiAn for 2.54mm Connectors? Hong YiAn Electronics has manufactured 2.54mm connectors since 2009. We offer: MOQ as low as 1,000 pcs, 7-day sample lead time, RoHS compliance, and custom plastic color / pin plating on request. Our factory passes ISO9001 and T"UV Rheinland assessment. Browse 2.54mm Pin Header Series | Browse Box Header Series