SMB Snap-On Plug for RG-316 — 50 Ohm, 4 GHz
The 903-367P-51A2: The snap-on fastening gives quick mate/unmate in tight panel spaces, while the nickel-plated zinc alloy body and gold-plated beryllium copper centre contact handle the RF path with insertion loss held to 0.6 dB across the band.
The 4 GHz frequency ceiling is the practical limit for this connector in a 50 Ohm path — above that the snap-on interface and PTFE dielectric start to introduce mismatch loss. For the cable assembly shop, the 500 mating cycles mean this plug is rated for repeated test or field-service connections without degrading the gold-on-beryllium-copper contact.
Cable Compatibility and Termination Checklist
This plug is built for RG-316 cable. The right-angle cable exit keeps the connector profile low where the cable needs to route parallel to the panel face.
The 142194 is a brass-body SMB plug with gold plating instead of the 903-367P-51A2's nickel finish, and it ships in a bag with an additional heat shrink tube. Both are 50 Ohm, 4 GHz, snap-on, female-socket plugs with 500 mating cycles and 0.6 dB insertion loss. The 142194 also covers RG-174, 188, and LMR-100 cable groups, making it a broader cable-range alternative if the build uses multiple coax types. For a strict RG-316-only BOM, the 903-367P-51A2 is the direct fit.