Sourcing Electronic Connectors from China
8 resources tagged with "Connectors"
Connectors are the most counterfeited line item on a typical BOM: genuine JST PH/XH and Amass XT60 housings are widely cloned, and a clone's contact resistance can be two to three times higher than spec, causing voltage drop and heat under load. We source and verify the full range — USB-C (including PD 3.1 240W ratings), JST PH/XH/GH/SH, XT30/XT60/XT90, Anderson Powerpole, JST barrel, D-Sub DB9/DB15/DB25, RJ45 with integrated magnetics, and HDMI/DisplayPort — and check gold plating thickness, mating-cycle ratings, and PCB retention force. For USB-C, the difference between a 3A and a 5A part is often a single missing resistor and undersized contacts.
When you source connectors, the genuine-vs-clone question matters more than unit price: clones save a few cents but fail field reliability tests on contact resistance, retention force, and mating cycles. We confirm the actual manufacturer (JST, Amass, Molex) rather than accepting a generic 'compatible' housing, and spec plating and current rating explicitly in the PO.
Wiki (8)
FAQ
How do I tell a genuine JST or XT60 connector from a clone?
Genuine JST and Amass parts hold tighter tolerances on pin spacing and contact resistance — clones often have looser fits, thinner plating, and visibly inconsistent molding. Measuring contact resistance under rated current is the definitive test; clones typically run far above the published spec.
What MOQ should I expect for custom connectors from China?
Standard catalog connectors (JST, USB-C, RJ45) often ship in small quantities of a few thousand pieces, while custom housings or custom cable assemblies usually start at 1,000-5,000 units. Branded Amass or genuine JST stock has lower effective MOQs than fully custom tooling.
Why do USB-C connectors fail in the field?
Common failure modes are thin gold plating that wears through after a few hundred insertions, weak PCB retention that cracks solder joints, and parts rated for 3A being sold as PD-capable without the contacts to carry 5A. Verify plating thickness and the PD power rating against the actual contact design.
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