The HA65A-XX from HASCO Components is a series of 1.85 mm fixed attenuators that operate from DC to 65 GHz. They are matched to 50 Ohms, and are available in attenuation configurations from 3 dB to 30 dB with a VSWR under 1.65:1. The attenuators have passivated stainless steel housing and can operate at temperatures between -55 C to +100 Degrees C.