The ACTQ384/384.05/TO39 from Advanced Crystal Technology is a SAW Resonator with Frequency 383.975 to 384.125 MHz, Centre Frequency 384.05 MHz, Insertion Loss 6 to 7.5 dB, Capacitance 1.6 to 2.2 pF, Quality Factor Loaded 6700. Tags: Drop In, SAW Resonator. More details for ACTQ384/384.05/TO39 can be seen below.