The BWSBF3-10/20-5C8 from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency 10 to 20 GHz, Band 1 10 to 12.5 GHz, Band 2 12.5 to 15.5 GHz, Band 3 15.5 to 20 GHz, Insertion Loss 8.5 dB. Tags: Die. More details for BWSBF3-10/20-5C8 can be seen below.