The TDCBSMSF-18G from Talent Microwave Inc is a DC Block with Frequency 10 MHz to 18 GHz, Insertion Loss 0.7 dB, Breakdown Voltage 50 V, VSWR 1.35:1, Operating Temperature -40 to 125 Degree C. Tags: Connectorized, Inner DC Block. More details for TDCBSMSF-18G can be seen below.