The QDB-100-6000-3K-77F from Qualwave is a DC Block with Frequency 0.1 to 6 GHz, Insertion Loss 0.2 to 0.3 dB, Breakdown Voltage 3000 V, VSWR 1.15:1, 1.25:1, Operating Temperature -45 to 55 Degree C. Tags: Connectorized. More details for QDB-100-6000-3K-77F can be seen below.