The Hirose BNC-J-1.5CR(40) is a 50 Ohm BNC jack, female socket, designed for free-hanging in-line installation on 1.5C-2V or 1.5D-2V coaxial cable. It comes as a three-piece kit: the connector body, a heat shrink tube for sealing the cable entry, and a sleeve that slips over the crimp ferrule.
Signal performance and frequency ceiling
Rated to 1 GHz maximum frequency, this jack handles the full L-band for GPS, ISM-band gear at 915 MHz, and most cellular bands below 1 GHz. The center contact is beryllium copper with silver plating — good conductivity and spring retention through the 500 mating cycles the bayonet lock is rated for. If your signal path runs above 1 GHz, this isn't the right part — look for a BNC rated to 4 GHz or an SMA.
