Key Specifications
Description
Fixed Attenuator 3 dB | SMA Plug (Male) to SMA Jack (Female) | Screw-Lock | Stainless Steel Body
The ROSNOL FA-A1A25A-18G5W3/9XX-9X is a precision 3 dB fixed RF attenuator designed for high-frequency signal management in RF, microwave, wireless communications, aerospace, defense, satellite, and test & measurement systems. Operating from DC to 18 GHz with a 50 Ω impedance, VSWR ≤ 1.2, and 5 W average power handling, this attenuator delivers stable and predictable signal reduction while maintaining excellent signal integrity. A fixed attenuator is used to decrease signal power, improve impedance matching, reduce reflections, protect sensitive equipment, and optimize system performance in complex RF networks.
The FA-A1A25A-18G5W3/9XX-9X features a nominal attenuation value of 3 dB with an accuracy of -0.6/+0.8 dB, making it suitable for precision RF calibration and signal conditioning applications. The design incorporates a passivated stainless steel body, gold-plated beryllium copper center contacts, PTFE insulators, a stainless steel coupling nut, and a black anodized aluminum heatsink for durability, corrosion resistance, and efficient thermal dissipation. The screw-on SMA interface supports more than 500 mating cycles for long-term reliability.
Manufactured in Taiwan and serving customers across North America, Europe, and Asia-Pacific, ROSNOL fixed attenuators provide a cost-effective alternative to leading global brands. Produced in ISO 9001-certified facilities and fully compliant with RoHS and REACH requirements, ROSNOL RF components support demanding global RF and microwave applications with consistent quality and dependable performance.
