The SAFFB1G57KE0F0A from Murata is a Band Pass Filter with Frequency 1573.92 to 1576.92 MHz, Center Frequency 1575.4 MHz, Insertion Loss 1 to 1.3 dB, Power 0.02 W, VSWR 1.30:1, 1.70:1. Tags: Surface Mount, RF SAW Filter. More details for SAFFB1G57KE0F0A can be seen below.