The 50DB-081 from JFW Industries is an Inner DC Block that operates from 10 MHz to 18 GHz. It has a DC breakdown voltage of 200 V and an insertion loss of less than 0.5 dB. This 50-Ohm DC block can handle an average input power of 2 W and has a VSWR of less than 1.35:1. It has a length of 0.94 inches and has SMA (male/female) connector.