The 502-1L from MECA is a DC Block with Frequency 0.10 to 50 GHz, Insertion Loss 1.5 dB, Breakdown Voltage 75 V, VSWR 1.75:1, Operating Temperature 5 to 75 Degree C. Tags: Connectorized, Inner-Outer DC Block. More details for 502-1L can be seen below.