Pin Headers & Dupont Connectors from China
1 resources tagged with "Dupont Connector"
Dupont connector sourcing from China covers the ubiquitous 2.54mm (plus 2.0mm and 1.27mm pitch) pin headers and crimp housings used on prototypes, dev boards, and low-cost wiring harnesses. The key sourcing variables are pitch, plating (brass with tin vs. gold), through-hole vs. SMD mounting, and SIL vs. DIL row counts. The classic failure mode is loose crimp contacts: cheap Dupont terminals back out of the housing or lose retention force, causing intermittent connections.
When you source Dupont connectors, the housing-to-terminal fit and the crimp quality matter more than the header itself. For anything beyond prototyping, gold-plated contacts and a verified crimp pull-force spec are worth specifying, since tin-plated Dupont parts corrode and the friction-fit retention is weak by design.
Wiki (1)
FAQ
What pitch and plating should I order for Dupont headers?
2.54mm pitch is the default for through-hole headers; 2.0mm and 1.27mm exist for tighter boards. Tin-over-brass is fine for hobby and prototype use, but specify gold plating if the connector sees vibration, humidity, or many mating cycles.
Why do my Dupont connectors lose contact over time?
Dupont housings rely on friction retention, and low-quality crimp terminals back out or lose spring tension. For production wiring use a connector system with positive latching (JST, Molex) instead, and verify the crimp pull-force on samples before bulk ordering.
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