SSMA Snap-On Plug (Male) to SMA Jack (Female) Adapter, DC-18 GHz VSWR1.2

SSMA Snap-On Plug (Male) to SMA Jack (Female) | Straight Adapter | Snap-Lock & Screw-Lock | Brass Body

The ROSNOL AD-SAQ1A25A/991-91 is a precision RF adapter designed for DC to 18 GHz operation with 50 Ω impedance. It achieves VSWR ≤ 1.20 and insertion loss ≤ 0.05√F (GHz) dB, ensuring excellent return loss and minimal signal degradation. Insulation resistance is ≥5 GΩ, and the adapter supports ≥500 mating cycles on both ends. Coupling mechanisms include snap-lock for SSMA and screw-lock for SMA, with center contact captivation ≥27 N for secure engagement.

Center contacts are beryllium copper with 3 microinch gold plating over an 80 microinch nickel-phosphorus underplating. Bodies and coupling nuts are brass with corrosion-resistant finish, and insulators are PTFE for thermal stability. Recommended torque for the SMA side is 0.8–1.1 Nm. The operating temperature range spans −65°C to +165°C, ensuring durability under harsh conditions.

ROSNOL’s RF adapters combine precision engineering with robust mechanical design, delivering superior performance for high-frequency applications. They offer excellent electrical characteristics, long service life, and competitive pricing, making them an ideal alternative to leading European and American brands. Manufactured in ISO 9001-certified facilities and fully compliant with RoHS and REACH standards, ROSNOL also provides customization for plating, materials, and mechanical design to meet unique customer requirements.