The 7DCB1T from Microwave Devices Inc. is a DC Block with Frequency 10 MHz to 2 GHz, Insertion Loss 0.50 dB, Breakdown Voltage 200 V, VSWR 1.35:1, Operating Temperature -55 to 125 Degree C. Tags: Connectorized, Inner DC Block. More details for 7DCB1T can be seen below.