BNC Bulkhead Jack — 50 Ohm, 4 GHz, Solder Cup Termination
The bayonet lock gives a quick quarter-turn mate — the kind of connection that clicks into place and stays there under vibration, typical for test equipment, instrumentation, and telecom infrastructure where the cable gets disconnected and reconnected regularly.
The 4 GHz max frequency covers the full BNC bandwidth; above that the interface geometry starts to support higher-order modes and the VSWR climbs. The 500 V rating gives you headroom for applications like RF power monitoring or antenna bias feeds where DC voltage rides on the carrier. The -65°C to 165°C operating range means this jack lives through thermal cycling in an outdoor cabinet or an unheated industrial bay without the dielectric cracking or the centre contact losing its grip.
Build and Termination
The body is zinc with a nickel finish — the nickel gives a hard, corrosion-resistant surface that holds up to repeated bayonet mating in a shop environment. The dielectric is PBT, a polyester that holds its dielectric properties across the temperature range. Termination is solder cup on the center contact and solder on the shield; the extended insulation feature (listed on the spec) means the dielectric extends past the mating face, which helps prevent flashover in high-voltage or high-altitude applications. The package is Bulk and includes the connector, lockwasher, and nut — everything you need to drop it into a panel cutout and terminate your coax.