The 8C1542D5-35-CD-SFF from Quantic PMI (Planar Monolithics) is a Band Pass Filter with Frequency 1.53 to 1.56 GHz, Bandwidth 35 MHz, Center Frequency 1542.5 MHz, Insertion Loss 1 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for 8C1542D5-35-CD-SFF can be seen below.