The RF3336C from Murata is a Band Pass Filter with Frequency 867.85 to 868.85 MHz, Bandwidth 0.5 MHz, Center Frequency 868.35 MHz, Insertion Loss 2.6 to 4 dB, Power 0.01 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for RF3336C can be seen below.