The DB-A1A25A-6G100V/911-91 from Rosnol is a DC Block with Frequency DC to 6 GHz, Insertion Loss 0.5 dB, Breakdown Voltage 100 V, VSWR 1.20:1, Return Loss 20.83 dB. Tags: Connectorized, Inner DC Block. More details for DB-A1A25A-6G100V/911-91 can be seen below.