The 031-5976-50RFX: The 4 GHz frequency ceiling and 0.2 dB insertion loss define the usable bandwidth for this jack. At 4 GHz, the VSWR stays within BNC-class limits — good for lab instrumentation, RF test heads, and telecom patch panels where the signal budget is tight. Below 1 GHz the loss is negligible; at the 4 GHz upper edge the 0.2 dB figure is the total through-loss for the mated pair, so factor it into the link budget if you are running multiple connectors in series.
Amphenol 031-5976-50RFX BNC Jack, 50 Ohm, 4 GHz
MPN031-5976-50RFX
Active
Amphenol RF BNC jack, female socket, 50 Ohm, 4 GHz, 0.2 dB insertion loss, 500 mating cycles, through-hole solder termination, bayonet lock, nickel body, gold centre contact.
$3.9400Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
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Independent supplier — new & surplus connector stock· Listing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Mounting | Through Hole |
| Connector type | Jack, Female Socket |
| Fastening type | Bayonet Lock |
| Voltage rating | 500 V |
| Frequency - max | 4 GHz |
| Operating temperature | -65°C~165°C |
| Body material | Brass |
| Housing color | Silver |
| Dielectric material | Polytetrafluoroethylene (PTFE) |
| Center contact material | Phosphor Bronze |
| Package | Bulk |
| Impedance | 50Ohm |
All specifications
| Parameter | Value |
|---|---|
| Body finish | Nickel |
| Mating cycles | 500 |
| Insertion loss | 0.2dB |
| Number of ports | 1 |
| Shield termination | Solder |
| Contact termination | Solder |
| Center contact plating | Gold |
Product details
Frequently asked questions
Does 031-5976-50RFX have a bayonet lock?
Yes, the 031-5976-50RFX uses a bayonet lock for quick-connect coupling.
What is the impedance of 031-5976-50RFX?
The impedance is 50 Ohm, matching standard coaxial cable and 50 Ohm system designs.
What is the mounting type of 031-5976-50RFX?
It is a through-hole mount with solder termination for the centre contact and shield.