Key Specifications
Description
SMA Jack (Female) to SMA Reverse‑Polarity Jack (Female) | Straight Adapter | Screw‑Lock | Brass Body
The ROSNOL AD‑A2A75B/91-91 is a straight RF adapter for 50 ohm applications, covering DC to 18 GHz with VSWR ≤ 1.20 (return loss ≥ 20.83 dB). It specifies insertion loss ≤ 0.05 × √F (GHz) dB, insulation resistance ≥ 5 GΩ, center contact resistance ≤ 3 mΩ, and outer contact resistance ≤ 2 mΩ. Electrical ratings include 1000 V rms test voltage, 480 V rms working voltage, and power handling up to 200 W at 2 GHz. The screw‑lock interface ensures ≥ 500 mating cycles, center contact captivation of axial ≥ 27 N and radial ≥ 3 N·cm, a coupling test torque ≤ 1.7 N·m, and recommended torque of 0.8–1.1 N·m.
This version integrates a brass body finished with gold plating (3 micro‑inch) over non‑magnetic nickel‑phosphorus underplating (80 micro‑inch), a beryllium copper gold‑plated center contact, and a PTFE insulator. The multi‑layer plating stack is selected for corrosion resistance and contact reliability, supporting stable RF performance across the specified frequency range and typical operating temperatures.
ROSNOL’s precision‑engineered RF adapters deliver reliable performance at competitive pricing, making them a strong alternative to products from leading European and American brands. All ROSNOL RF components are manufactured in ISO 9001‑certified facilities and fully comply with RoHS and REACH regulations. Customization services for materials, plating, and mechanical design are available to support specialized interconnect requirements.
