The SWF-74305350-12-B1 from ERAVANT is a Waveguide Filter with Frequency 71 to 76 GHz, Insertion Loss 2 to 2.5 dB, Operating Temperature -45 to 85 Degree C, Rejection 40 to 50 dB. Tags: Band Pass. More details for SWF-74305350-12-B1 can be seen below.