
31-219-RFX
Amphenol
4 variants · Amphenol
The Amphenol 3121 Series series groups 4 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common body finish of Nickel, body material of Brass and features of -. Variants differ by center contact material, center contact plating and dielectric material, so you can match the exact center contact material your application requires using the selection guide below. All listed Amphenol 3121 Series part numbers are active and orderable.
| Parameter | 31-219-RFX | 31-212-RFX | 31-218-RFX | 31-219 |
|---|---|---|---|---|
| Center contact material | Phosphor Bronze | Brass | Brass | Beryllium Copper |
| Center contact plating | Gold | Gold | Gold | Silver |
| Dielectric material | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polyoxymethylene (POM) Acetal | Polytetrafluoroethylene (PTFE) |
| Fastening type | Bayonet Lock, Bayonet Lock | Bayonet Lock | Bayonet Lock, Bayonet Lock | Bayonet Lock, Bayonet Lock |
| Includes | - | 6 pcs - 1 Connector, 1 Braid Clamp, 1 Clamp, 1 Contact, 1 Gasket, 1 Washer | - | - |
| Insertion loss | - | 0.2dB | - | - |
| Operating temperature | -65°C~165°C | -65°C~165°C | -40°C~85°C | -65°C~165°C |
| Adapter type | Jack to Jack | — | Plug to Plug | Jack to Jack |
Request a quote on any Amphenol 3121 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

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