The TC315GD-N from Golledge is a SAW Resonator with Frequency 314.97 to 315.03 MHz, Centre Frequency 315 MHz, Insertion Loss 1.6 to 2.5 dB, Voltage 12 V, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, SAW Resonator. More details for TC315GD-N can be seen below.