The AT35A-3839-A-I-26 from Aaren Technology Ltd is a DC Block with Frequency 30 MHz to 26.5 GHz, Insertion Loss 0.60 dB, Breakdown Voltage 50 V (Working Voltage), VSWR 1.25:1, Operating Temperature -55 to 165 Degree C. Tags: Inner DC Block. More details for AT35A-3839-A-I-26 can be seen below.