Product Overview
50-Ohm Male Coaxial Crimp Connector for RG-58 and RG-142 Coax
Condition
New old stock (NOS), unused. Components are unassembled and include the connector body, crimp ferrule, and gold-plated center pin.
Same or next business day shipping from our Idaho warehouse. Reliable parts since 1999. Honest pricing, no nonsense.
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Product Overview
Amphenol RFX 31-320-RFX provides 50-ohm straight BNC male termination for RG-58, RG-141, and RG-142A coaxial cables. Engineered for applications operating from DC to 4 GHz, this three-piece connector uses a crimp ferrule and crimp or solder center pin for secure RF assembly.
Key Features
- Connector type: BNC male (plug), straight orientation
- Impedance: 50 ohms nominal
- Frequency range: DC to 4 GHz
- Cable compatibility: RG-58, RG-141, RG-142A, and LMR-195
- Termination: Hex crimp outer ferrule (.213 in / 5.4 mm) with crimp or solder center contact (.068 in / 1.7 mm)
- Construction: Nickel-plated brass body with gold-plated brass contact and Delrin insulator
Applications
- Building custom 50-ohm patch cables for oscilloscopes, frequency counters, and bench RF test instruments.
- Field termination and repair of amateur radio, scanner, or communications antenna feedlines using RG-58 coax.
- Prototyping and DIY maker electronics projects requiring reliable, quick-disconnect coaxial interconnections.
Frequently Asked Questions
Which coaxial cables fit this connector?
This plug fits standard 50-ohm RG-58, RG-141, and RG-142A cables, along with equivalent outer-diameter coaxial lines such as Times Microwave LMR-195 and Belden 7806A.
What crimp tool sizes are required for assembly?
Assembly requires a standard hex crimp die with a 0.213-inch (5.4 mm) cavity for the outer ferrule and a 0.068-inch (1.7 mm) cavity for the center pin. The center contact can also be soldered.
Why buy a single Amphenol RFX connector here instead of a bulk lot?
You receive the exact genuine Amphenol RFX connector needed to complete your cable project without buying surplus multi-packs of uncertain origin. Shipping is $8 flat rate, free once the order passes $28, and orders leave our Idaho warehouse the same or next business day.
There is a quiet satisfaction in the quarter-turn click of a properly terminated BNC connector on the bench. Strip your coax, crimp down the ferrule, and lock in a clean signal.
