Product details
UG-291B/U BNC Straight Clamp Jack RG-55 RG-142 RG-223 RG-400 4-Hole Flange 50 Ohm
Part number (MPN)
Impedance
50
Frequency
4
Need a custom version from drawing?
We coordinate supplier-qualified RF connector and cable assembly sourcing from drawings, samples, or BOM. Typical production lead time is 3–6 weeks after drawing/spec review; feasibility, MOQ, and fit are confirmed by RFQ.
Before RFQ Clear inputs speed up review. ⌄
- • Share the reference MPN and source brand if it matters.
- • Add the BOM and volume split for production projects.
- • Attach the drawing or the key fit requirements.
Specifications
| Interface | RG-55, RG-142, RG-223, RG-400, Belden 83242, Times SF-142B |
|---|---|
| Impedance | 50 |
| Frequency (max) | 4 |
| Gender | Jack |
| Orientation | Straight |
| Termination | Solder |
| Termination | Cable - Clamp |
| Mounting | 4-Hole Flange |
| Body Material | Brass |
| Termination | Brass |
| Alias | UG-291B/U |
| Body Finish | Silver |
Show 13 more specs
| Termination | Silver |
|---|---|
| Coupling mechanism | Bayonet |
| Export Control Classification Number | EAR99 |
| IP rating | Not Rated |
| Insulator Material | PTFE |
| Isolated | No |
| Low PIM | No |
| Mil Qualified | Not Mil Qualified |
| Non Magnetic | No |
| Ports | 1 (Single Port) |
| Size Category | Miniature |
| Temp (Max Degrees Celsius) | 165 |
| Temp (Min Degrees Celsius) | -65 |
Description
Current reference data for 031-201: 50 · 4 · 4-Hole Flange. The catalog currently lists the configuration as: Straight · Solder. Impedance is listed as 50. If that parameter is critical, confirm it again in RFQ. Frequency is listed as 4. The real operating limit still depends on the assembly, mating pair, and application context. Mounting is listed as 4-Hole Flange. If panel, bulkhead, or flange constraints matter, send the dimensions with the RFQ. Material is listed as Brass. That is useful for review, but it does not replace full project stack-up confirmation. The catalog also lists a sealing or protection value of Not Rated. Check that against the real environment requirement in RFQ. Use this page to shortlist before RFQ, not as the final sign-off.
Use this page to shortlist before RFQ. MOQ 200+ custom production and supply path are confirmed after drawing/spec/BOM review; no spot stock is assumed.
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Disclaimer
Manufacturer names, trademarks, symbols, and part numbers are used for identification and cross-reference only. Cstone Technology is a China-based export sourcing partner for compatible alternatives and is not affiliated with the original brands. Trademarks remain the property of their respective owners. Final suitability is confirmed by drawing/spec review during RFQ.