The PDSBF4-16/20-5D7 from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency 16 to 20 GHz, Band 1 16 to 17 GHz, Band 2 17 to 18 GHz, Band 3 18 to 19 GHz, Insertion Loss 7.5 dB. Tags: Die. More details for PDSBF4-16/20-5D7 can be seen below.