75 Ohm SMB Bulkhead Receptacle for 4 GHz Signal Paths
The 142204-75: It is the 75 Ohm variant of the standard SMB snap-on interface, distinguished by its impedance — the 75 Ohm version is common in video, broadcast, and data-communications equipment where the signal path is matched to 75 Ohm cable and PCB traces. The gold-plated brass body and gold-plated center contact provide corrosion resistance and consistent surface conductivity across the 500-cycle rated mating life. The PTFE dielectric maintains a stable 75 Ohm impedance through the connector body, and the insertion loss is specified at 0.3 dB up to the 4 GHz ceiling — a tight figure that keeps the signal budget intact for a single in-line connection.
The center contact terminates to a coaxial cable center conductor through a solder cup or through-hole PCB pad; the contact termination is listed as solder, so no crimp tool is required for the center pin. The snap-on fastening type provides quick mate and unmate without tools — the mating receptacle (typically an SMB jack or plug on a cable assembly) clicks into place and releases with a straight pull. The 500-cycle rating is typical for SMB and suits test-point or field-service connections where the cable is disconnected periodically.