The RF3600E from Murata is a Band Pass Filter with Frequency 867 to 870.2 MHz, Bandwidth 1.6 MHz, Center Frequency 868.6 MHz, Insertion Loss 1.8 to 2.3 dB, Power 0.01 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for RF3600E can be seen below.