The AT35A-3637-A-I-40 from Aaren Technology is an Inner DC Block that operates from 30 MHz to 40 GHz. It has a DC voltage rating of 50 V, an insertion loss of less than 0.8 dB, and a VSWR of up to 1.30:1. This DC block is available in a SU303F-polished and passivated module that measures 25 x 9 mm and has 2.92 mm (K) male/female connectors. It has an operating temperature range of -55° to +165°C.