SMA Bulkhead Jack, 50 Ohm, DC–18 GHz
The 132291-12: This is the single-port version, terminated by solder to the center pin and shield.
What the 18 GHz and 500 V Ratings Mean for the RF Path
18 GHz is the upper end of the SMA interface's practical range — beyond that, mode propagation limits the connector's performance. For sub-6 GHz work (cellular, Wi-Fi, ISM bands) this jack has headroom; for Ku-band satellite links at 12–18 GHz, it's at the rated ceiling. The 500 V rating comes from the PTFE dielectric's breakdown strength, not the contact spacing — relevant if DC bias or high RF voltage is present on the line.
500 Mating Cycles with Gold-Plated Beryllium Copper
500 cycles is typical for a gold-over-beryllium copper contact in an SMA jack. The beryllium copper spring maintains contact force through temperature cycling and repeated matings. For a test-bench or field-service connector that sees regular connect/disconnect, this cycle life matches the duty.
Bulkhead Mount with Solder Termination
Center contact termination is solder — the installer tins the center conductor of the coaxial cable and solders it into the pin. The through-hole solder cups on the shield legs provide strain relief for the cable braid.