The TC0391B from Tai-Saw Technology is a SAW Resonator with Frequency 916.45 to 916.55 MHz, Centre Frequency 916.5 MHz, Insertion Loss 1.4 to 2.2 dB, Capacitance 2.3 pF, Quality Factor Unloaded 9300. Tags: Surface Mount, SAW Resonator. More details for TC0391B can be seen below.