Key Specifications
Description
N Jack (Female) to UHF Jack (Female) | Straight Adapter | Screw-Lock | Brass Body
Last Updated: 2026-02-11
The ROSNOL AD-N2U25A/H3-H3 is a straight RF adapter designed for dependable connectivity between N jack female and UHF jack female interfaces. It operates from DC to 300 MHz with N side impedance of 50 ohms and UHF side non-constant impedance, ensuring VSWR ≤ 1.3 and return loss ≥ 17.7 dB. Electrical performance includes insulation resistance ≥ 5 GΩ, center contact resistance ≤ 1 mΩ (N side) and ≤ 5 mΩ (UHF side), and outer contact resistance ≤ 0.25 mΩ (N side) and ≤ 5 mΩ (UHF side). The adapter features screw-lock coupling on both sides, supports at least 500 mating cycles, and withstands temperatures from -55°C to +165°C.
Material construction ensures superior performance: both center contacts are phosphor bronze with gold plating over nickel-phosphorus underlayer, and bodies are brass with nickel finish. PTFE insulators provide excellent dielectric properties, and coupling nuts are brass with nickel plating for enhanced durability.
ROSNOL’s precision-engineered RF adapters deliver high quality and reliable performance at competitive pricing, making them practical alternatives 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 meet specialized interconnect requirements.
