Obsolete — Sourcing This SMB Jack for a BOM Line
This is a 50 Ohm SMB jack, male pin, rated to 4 GHz with 0.3 dB insertion loss — a snap-on RF interconnect built for through-hole solder termination.
The 50 Ohm impedance and 4 GHz max frequency define the signal path — this is a general-purpose RF interconnect for sub-4 GHz bands, not a precision microwave connector. The 0.3 dB insertion loss is the typical figure at the top of the band; expect lower loss at lower frequencies. The snap-on fastening gives quick mate/unmate but less vibration resistance than a threaded interface — the 500-cycle rating is the mechanical endurance limit, not a recommendation for daily cycling to that count. Through-hole mounting with solder shield termination gives a solid mechanical anchor; the board footprint is standard for an SMB jack.