The TDCBSMSF-12G from Talent Microwave Inc is a DC Block with Frequency 10 MHz to 12 GHz, Insertion Loss 0.7 dB, Breakdown Voltage 50 V, VSWR 1.30:1, Operating Temperature -40 to 125 Degree C. Tags: Connectorized, Inner DC Block. More details for TDCBSMSF-12G can be seen below.