The DR2-4073 from ECS Inc. International is a SAW Resonator with Frequency 407.2 to 407.4 MHz, Centre Frequency 407.3 MHz, Insertion Loss 10 dB, Capacitance 1.4 pF, Quality Factor Loaded 5500 Q. Tags: Drop In, SAW Resonator. More details for DR2-4073 can be seen below.