SMC M CRIMP for RG178 Cable

Description

The SMC Male (Plug) Crimp Connector for RG178 is a specialized threaded RF interface designed for environments where mechanical security and micro-diameter cable management are essential. While it shares a similar footprint with the snap-on SMB series, the SMC utilizes a #10-32 threaded coupling to ensure a semi-permanent, stable connection. This threaded interface maintains constant contact pressure and is highly resistant to loosening caused by mechanical shock and vibration, making it a preferred choice for avionics, ruggedized sensors, and internal high-density equipment wiring.

This variant is precision-calibrated for the specific geometry of RG178 cable, one of the smallest flexible 50-Ohm coaxial cables available. It features a robust dual-crimp termination system for both the center conductor and the outer ferrule, providing an industrial-strength mechanical bond despite the cable’s micro-profile. Manufactured with a gold-plated brass body and premium PTFE (Teflon) insulation, the connector supports stable signal transmission and low VSWR (Voltage Standing Wave Ratio) from DC up to 10 GHz. Its robust construction ensures reliable performance in harsh environments subject to extreme temperature fluctuations.

Key Technical Advantages

• Vibration-Resistant Threaded Security: The #10-32 threaded coupling prevents accidental disconnection and maintains signal integrity in high-motion environments where snap-on connectors may fail.

• RG178 Micro-Cable Precision: Specifically engineered for the micro-dimensions of RG178 (approx. 1.8mm OD), ensuring a secure mechanical grip and an optimized 50-Ohm electrical transition.

• High-Frequency Range: Precision-machined to support stable RF and microwave signal transmission up to 10 GHz, suitable for GPS, wireless modules, and precision instrumentation.

• Superior Pull-Off Resistance: The dual-crimp design provides maximum mechanical strength for ultra-thin cables, protecting the sensitive internal signal path from tension.

• Corrosion-Resistant Gold Plating: High-grade gold-over-nickel plating on all critical surfaces ensures low contact resistance and prevents oxidation over long-term deployments.

Key Features

• Interface Type: SMC Male (Plug) with 50-Ohm threaded coupling.

• Cable Compatibility: Optimized exclusively for RG178 (and compatible RG196) coaxial cables.

• Termination Method: High-reliability crimp for both the center pin and the outer ferrule.

• Premium Construction: Features a gold-plated brass body and a high-performance PTFE dielectric for thermal and electrical stability.

• Compact Footprint: Ideal for high-density internal equipment wiring where threaded security is required in a subminiature form factor.

Technical Summary