The SFB-4G18G-5-CD-SFF-SP3T from Quantic PMI (Planar Monolithics) is a Switched Filter Bank with Frequency DC to 4940 MHz, Band 1 5350 to 18000 MHz, Insertion Loss 5 dB, Isolation 70 dB, Current 45 to 120 mA. Tags: Module. More details for SFB-4G18G-5-CD-SFF-SP3T can be seen below.