The ZDB2S-18-YA from ZTS Technologies is a DC Block with Frequency 10 MHz to 18 GHz, Insertion Loss 0.80 dB, Breakdown Voltage 50 to 250 V, Input Power (Avg) 2 Watts, VSWR 1.45:1. Tags: Connectorized, Inner DC Block. More details for ZDB2S-18-YA can be seen below.