The circular plastic connector (CPC) products offer a very rugged housing and contact design in an easy-to-mate circular connector with a bayonet coupling. Some CPC connectors are designed specifically for applications where environmental sealing is required. The housings are made of heat resistant, self-extinguishing thermoplastic material. The METRIMATE connectors utilize the same contacts as CPC products, yet offer a rectangular configuration for wire-to-board or wire-to-wire applications. The dynamic series connectors offer additional configuration options and a wide variety of contacts that satisfy a broader range of power and signal applications.