Circular Canted Coil Spring Ring

This listing covers the circular canted coil spring contact ring, the current-carrying ring element that sits inside a charging connector jack. The reference photo shows silver-plated and gold-plated circular canted coil rings arranged on a black surface, illustrating the finished ring forms this product is supplied in. Material on this page is brass, T2 copper, with silver plating as the standard finish.

Jack Sizes

The ring is used in new-energy electric vehicle charging connectors. The full set of charging connector jacks this ring is produced for uses pin jacks at 1.58mm; 2.8mm; 3.6mm and 3mm; 6mm.

Plating specifications and materials can be customized to the customer's requirement, and the ring bore can be sized from a drawing. Both silver and tin are listed as available platings, and the ring is produced against the drawing rather than a fixed catalogue diameter. The circular ring is linked to Electric Vehicles, High-Speed Rail, Energy Storage & Battery Testing and Industrial & Robotics applications.

As the ring element, the part sits in a groove around the jack so the canted coil presents a continuous line of contact to the inserted pin. Because the ring is circular and self-contained, it can be dropped into the connector housing without additional retaining hardware, with the bore matched to the pin from the drawing. This makes the circular ring straightforward to fit in a revised connector design.

Manufactured by Dongguan SISE (Spring-in-Spring) Electronics Co., Ltd., an ISO 9001 and IATF 16949 certified manufacturer of precision spring contacts, high-current connector terminals and EMI/RFI shielding since 2011.