Two key factors:
Contact design: Major effect on the durability of the spring force, will eventually
reduce to a level that will not give good contact. Gold plating: Thicker the gold,
longer it takes to wear out.
Number of mating cycles:
USB2.0 Full Size: 1,500 mating cycles, gold flash plating.
USB2.0 Mini: 5,000 mating cycles, 15µ” gold plating.
USB2.0 Micro: 10,000 mating cycles, 30µ” gold plating.
USB3.0 Full Size: 5,000 mating cycles, 30µ” gold plating.
USB 3.0 Micro: 10,000 mating cycles, 30µ” gold plating.
Why Micro types offer better durability?
Accomplished by moving leaf-spring from the PCB receptacle to plug, the most-stressed
part is now on the cable side of the connection.
Inexpensive cable bears most wear instead of the µUSB device.
Searching for other USB connectors? View GCT Micro
USB connectors, Mini USB connectors,
Full size USB,
USB2.0 and USB3.0
If you would like more information or would like to request samples, please
contact GCT or view all our USB connectors