RP-TNC Jack for Panel-Mount RF Runs
The 122490RP: The reverse-polarity interface swaps the standard TNC gender convention — the jack carries the pin — so it mates with an RP-TNC plug that has the socket. This is common in Wi-Fi, ISM-band, and spread-spectrum radio applications where the antenna port is keyed to prevent accidental mating with a standard TNC.
Mounting and Hardware — What Ships in the Bag
This is a bulkhead-mount jack with a front-side nut, designed to install through a panel from the outside. The lockwasher sits between the nut and the panel face to prevent the connector from loosening under vibration — don't skip it. The mounting feature is bulkhead with a through-hole right-angle solder cup termination: the center contact and shield both terminate to the PCB via solder, while the threaded body clamps to the panel. Mounting type is panel mount, through hole, right angle — the jack body sits perpendicular to the board edge, with the solder cup terminals protruding through plated holes.
Signal Path and Durability Specs
Insertion loss is 0.18 dB at the rated frequency band, and the voltage rating is 500 V. The gold-over-nickel center contact handles the 500 mating cycles without fretting corrosion — gold is the right choice for field-serviceable connections that get unmated and remated during installation or maintenance.