The DCB1D7 from Microwave Devices Inc. is a DC Block with Frequency 300 MHz to 2.5 GHz, Insertion Loss 0.10 dB, Breakdown Voltage 100 V, VSWR 1.20:1, Operating Temperature -65 to 125 Degree C. Tags: Connectorized, Inner DC Block. More details for DCB1D7 can be seen below.