The P1AT-SAMF-18G5W-20 from P1dB is a Coaxial Fixed Attenuator that operates from DC to 18 GHz. It can handle up to 5 W of CW power, provides a fixed attenuation of 20 dB and has a VSWR of less than 1.35:1. The attenuator has a black anodized aluminum heat sink. This RoHS-compliant attenuator is available in a connectorized module with SMA male and female connectors.