Pin Headers and Dupont Connectors from China
1 resources tagged with "Pin Headers"
Pin headers and Dupont connectors are commodity interconnects sourced cheaply from Guangdong and Zhejiang in 2.54mm, 2.0mm, and 1.27mm pitch, single-row (SIL) or dual-row (DIL), through-hole or SMD. The quality variable buyers miss is plating: gold flash over nickel holds up far better than bare brass or tin in repeated mating or humid environments. For current-carrying applications, confirm the per-pin current rating, typically 1-3A depending on contact size.
When you order pin headers, specify pitch, plating, and whether they are SMD or through-hole — substitution between these is a common factory error. Cheap tin-plated headers corrode and lose contact in field returns.
Wiki (1)
FAQ
What does pin header pitch mean and which is standard?
Pitch is the center-to-center spacing between pins; 2.54mm (0.1 inch) is the most common for hobby and through-hole use, with 2.0mm and 1.27mm for denser boards. Specify it exactly so mating connectors fit.
Is gold plating worth the cost on headers?
For connectors mated many times or used in humid or industrial settings, gold over nickel resists corrosion and keeps contact resistance low. For one-time-assembly internal connections, tin plating is usually acceptable.
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