BNC Plug (Male) to BNC Jack (Female) Fixed Attenuator, 4GHz 2W 3dB VSWR 1.2

BNC Fixed Attenuator | Male to Female | 3 dB | 2 Watt | Bayonet-Lock | Brass Body with Nickel Plating

The ROSNOL FA-B1B25A-4G2W3/933-93 is a precision-engineered fixed attenuator designed for RF and microwave systems. Operating from DC to 4 GHz, it ensures 50 Ω impedance and VSWR ≤ 1.15 (≥23.13 dB return loss) up to 2 GHz and ≤1.20 (≥20.8 dB) from 2 to 4 GHz. This model offers a nominal attenuation of 3 dB with accuracy of ±0.4 dB in the lower band and ±0.5 dB in the upper band, delivering stable signal control for critical applications. Rated for 2 Watts average power at 30°C, the attenuator features a bayonet-lock coupling mechanism for quick and secure connections.

Constructed with premium materials, the center contact is beryllium copper with gold plating over nickel underplating for superior conductivity and corrosion resistance. The body and coupling nut are brass with nickel plating, while PTFE insulators ensure excellent dielectric properties. Silicone rubber gaskets provide environmental sealing, and the assembly withstands temperatures from -55°C to +130°C, guaranteeing long-term reliability under harsh conditions.

ROSNOL’s RF attenuators deliver exceptional performance at competitive pricing, making them a cost-effective alternative to leading European and American brands. All products are manufactured in ISO 9001-certified facilities and fully comply with RoHS and REACH regulations. Customization services for attenuation values, materials, and plating options are available to meet specialized requirements.