The RO3144D-2 from Murata is a SAW Resonator with Frequency 916.4 to 916.6 MHz, Centre Frequency 916.5 MHz, Insertion Loss 1.2 to 2.5 dB, Capacitance 2.1 pF, Quality Factor Loaded 700. Tags: Surface Mount, SAW Resonator. More details for RO3144D-2 can be seen below.