The SAFFW1G56AA0E0A from Murata is a Band Pass Filter with Frequency 1575.4 MHz / 1561.1 MHz /1601.7 MHz, Center Frequency 1561.1 to 1601.7 MHz, Insertion Loss 0.8 to 2 dB, Power 0.03 W, VSWR 1.30:1, 1.80:1. Tags: Surface Mount, RF SAW Filter. More details for SAFFW1G56AA0E0A can be seen below.