The MA05573 from Golledge is a SAW Resonator with Frequency 868.225 to 868.375 MHz, Centre Frequency 868.31 MHz, Insertion Loss 1.3 to 2.5 dB, Voltage 12 V, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, SAW Resonator. More details for MA05573 can be seen below.