SMA M SOLDER for SM 250 Cable

Description

The SMA Male Solder Connector for SM 250 is a professional-grade RF interface designed for the most demanding high-frequency applications. Specifically built for .250″ Semi-Rigid (SM 250) cable?often referred to as RG-401?this connector utilizes a direct-solder mounting method. By soldering the connector body directly to the cable?s solid copper outer conductor, it creates a seamless, 360-degree bond that ensures absolute shielding and structural rigidity.

Engineered for Microwave and High-Power RF Because SM 250 cable is frequently used in high-power transmitters and sensitive receiver front-ends, this connector is designed to eliminate the passive intermodulation (PIM) and signal leakage often found in crimp-style connectors. The straight-through signal path and direct solder bond make it the industry standard for RF power amplifiers, base station infrastructure, and precision test lab assemblies operating at frequencies up to 18 GHz.

Key Technical Advantages:

• Direct-Solder Body & Pin: Provides the lowest possible contact resistance and the highest mechanical strength, ensuring the interface remains stable under extreme thermal cycles.

• 100% RF Shielding: The seamless solder connection between the cable jacket and the connector body provides near-perfect EMI/RFI protection.

• Low VSWR Performance: Precision-machined to maintain a strict 50 Ohm impedance transition from the large .250″ dielectric to the SMA interface.

• High-Power Handling: The robust construction and excellent thermal conductivity of the soldered joint allow for higher power throughput compared to flexible cable assemblies.

• Premium Materials: Features a high-purity gold-plated brass or stainless steel coupling nut and a gold-plated center pin for superior conductivity and corrosion resistance.

Key Features

• Connector Type: SMA Male (Plug) with internal threads and center pin.

• Cable Compatibility: .250″ Semi-Rigid, SM 250, or RG-401.

• Termination Method: Direct Solder (Body and Center Contact).

• Impedance: 50 Ohm (Optimized for RF/Microwave).

• Frequency Range: DC to 18 GHz.

• Durability: Rated for 500+ mating cycles in high-vibration environments.

Technical Summary