N Plug (Male) to N Jack (Female) Fixed Attenuator, 4GHz 25W 3dB VSWR 1.35

N Male to N Female Fixed Attenuator | 3 dB | 25 W | Screw-lock | Brass Body

The ROSNOL FA-N1N25A-4G25W3/144-94 is a precision-engineered fixed attenuator designed for high-frequency RF and microwave applications. This N-type attenuator features a male-to-female configuration and delivers a nominal attenuation of 3 dB with a VSWR of 1.35 up to 4 GHz. Built for durability, it supports input power up to 25 watts at 25°C and operates across a DC to 4 GHz range, ensuring stable signal performance in demanding environments. The screw-lock coupling mechanism guarantees secure connections and reliable mating cycles exceeding 500.

Constructed from high-quality materials, the body is made of brass with a copper-tin-zinc alloy finish, while the center contact utilizes beryllium copper with gold plating over a non-magnetic nickel-phosphorus underlayer for optimal conductivity and corrosion resistance. The insulator is PTFE for excellent dielectric properties, and the gasket is silicone rubber for robust sealing. Mechanical integrity is reinforced with a coupling nut retention of ≥450 N and axial captivation of ≥28 N.

ROSNOL’s precision-engineered RF attenuators deliver reliable performance across a wide range of RF and microwave systems. Designed to meet the stringent demands of high-frequency signal transmission, ROSNOL attenuators offer a cost-effective 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, ensuring global environmental and safety standards. Customization services for materials, plating, and mechanical design are available to support specialized interconnect requirements.