The ACTR4016/423.22/QCC4A from Advanced Crystal Technology is a SAW Resonator with Frequency 423.145 to 423.295 MHz, Centre Frequency 423.22 MHz, Insertion Loss 1.6 to 2.2 dB, Capacitance 1.7 to 2.2 pF, Quality Factor Loaded 1800. Tags: Surface Mount, SAW Resonator. More details for ACTR4016/423.22/QCC4A can be seen below.