The MP02638 from Golledge is a SAW Resonator with Frequency 999.875 MHz to 1.00013 GHz, Centre Frequency 1000.01 MHz, Insertion Loss 1.3 to 2 dB, Voltage 3 V, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, SAW Resonator. More details for MP02638 can be seen below.