The ACTR3003/345.0/QCC4A from Advanced Crystal Technology is a SAW Resonator with Frequency 344.925 to 345.075 MHz, Centre Frequency 345 MHz, Insertion Loss 1.5 to 2.2 dB, Capacitance 2.25 to 2.85 pF, Quality Factor Loaded 1600. Tags: Surface Mount, SAW Resonator. More details for ACTR3003/345.0/QCC4A can be seen below.