The TE Connectivity 1-1337479-0 is a Greenpar-series SMB jack with a male pin centre contact, designed for panel-mount RF interconnect through a bulkhead. The SMB interface is a snap-on, subminiature connector family that mates with the corresponding SMB plug — it is not compatible with BNC or SMA interfaces. The 50 Ohm characteristic impedance and 4 GHz maximum frequency suit it for RF signal paths in test equipment, telecom infrastructure, and instrumentation where the board or cable assembly expects an SMB launch. The bulkhead mounting feature with front-side nut secures the connector to a panel, and the included lockwasher and nut complete the installation hardware. The gold body finish on the brass shell and gold-plated centre contact support the 500 mating cycle rating — the gold-on-gold interface resists corrosion and maintains consistent contact resistance through repeated mate-unmate cycles in field-service or test-bench use. The dielectric is PTFE, which keeps insertion loss to 0.3 dB across the DC-4 GHz band and holds the 50 Ohm impedance through the signal path.
Termination and mounting — what the build requires
This is a manual termination step, not a crimp or PCB-solder process; the assembler needs a soldering iron and a fixture to hold the connector while the cable is dressed. The bulkhead mount uses a front-side nut — the connector body passes through the panel hole from the outside, and the nut tightens from behind, compressing the lockwasher against the panel for a stable ground reference.
No official successor order code is listed in the lifecycle record. For a BOM line that still calls out this exact part number, the supply path is the surplus and independent distribution channel — we source it against an RFQ and confirm availability and current pricing at quote time. There is no direct pin-compatible drop-in from TE's current catalogue; any replacement would require requalifying the SMB interface, panel cutout, and electrical performance against the system's 50 Ohm and 4 GHz requirements.
The 0.3 dB insertion loss at 4 GHz is a tight budget — in a cascade of connectors, cables, and PCB launches, each SMB interface eats into the link margin. The 500 mating cycle rating is typical for SMB snap-on connectors; the snap-on retention is convenient for quick disconnect but the spring fingers in the jack wear with each cycle, so a test fixture that mates and unmates daily will hit the cycle limit faster than a permanently installed panel connection. The 250 V voltage rating and -65°C to 165°C operating range cover most indoor and outdoor equipment environments, but the connector is not sealed — it relies on the panel gasket (not included) for environmental protection at the bulkhead.