Pin Headers & Through-Hole Connectors from China
1 resources tagged with "Through Hole"
Through-hole pin headers and Dupont connectors are among the highest-volume, lowest-cost parts you'll source from China, but plating and pitch are where corners get cut. Standard pitches are 2.54mm, 2.0mm, and 1.27mm, and the plating choice — brass with thin tin versus gold flash — drives both current rating and corrosion life. The common defect is gold plating thinner than the spec implies, which fails after a few mating cycles, so confirm plating thickness and current rating against the datasheet rather than the listing.
When you source pin headers, the pitfall is under-plated contacts and inconsistent pin retention in the plastic body — we verify pitch, plating type/thickness, and through-hole vs SMD footprint, and check sample retention force.
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FAQ
What pitch sizes do pin headers come in?
The most common are 2.54mm (0.1 inch), 2.0mm, and 1.27mm. Confirm the pitch matches your board footprint exactly, since headers aren't interchangeable across pitches.
Does gold vs tin plating matter on pin headers?
Yes for connectors that mate repeatedly or sit in humid environments. Gold resists corrosion and handles more mating cycles; tin/brass is cheaper for fixed, low-cycle use. Verify the actual plating thickness.
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