The PCAF Series of fixed attenuators from Inmet by Spectrum Control are chip attenuators that operate from DC to 4 GHz with attenuation options available from 1 to 20 dB. Each attenuator can handle up to 1.5 W of power and has a VSWR of 1:25:1. The attenuators can operate at a temperature range from 55 Degrees C to 150 Degrees C.