The BBT-05-400B from Pulsar Microwave is a DC Block that operates from 0.3 to 18 GHz. It has an insertion loss of less than 0.8 dB, an Input/Output VSWR of under 1.30:1 and can handle up to 50 V. This RoHS-compliant DC block is available in a module that measures 1.20 x 0.63 x 0.50 inches with SMA connectors.