The 8535K-KH from Inmet by Spectrum Control is a DC Block with Frequency 0.007 MHz to 40 GHz, Insertion Loss 0.5 to 1.25 dB, Breakdown Voltage 35 V, Operating Temperature -65 to 125 Degree C. Tags: Connectorized, Inner DC Block. More details for 8535K-KH can be seen below.