Re:iOS 11.3 update breaks iPhone 8 devices with third party-...
by inteleng on Wednesday April 11, 2018 @04:27PM
(#16815227)
This is the point I'd have made if I had more patience. It is simply ridiculous to claim that galvanic corrosion and/or electromigration is likely to be a problem on a square millimeter gold contact with a few microns of metal that passes at most 15W continuously for a few years before being discarded.
> To mitigate these issues, external contacts may typically include a corrosion-resistant coating to the exposed exterior surface… Although temporarily effective, such coatings are subject to frictional wear and may become less effective over the life of a device.
Frictional wear is not a huge problem in practice.
There’re billions of devices with built-in batteries in the world. I’ve been carrying a cell phone, and later sometimes other electronics, since 1999. Never encounter such issues.
Most manufacturers use gold plating, and they advertise reliability for 10000 mating cycles:
https://gct.co/usb-connector https://www.gradconn.com/Products/MicroUSB https://www.molex.com/molex/products/datasheet.jsp?part=acti...