The SR2442A from SAW Components is a SAW Resonator with Frequency 2438 to 2446 MHz, Centre Frequency 2442 MHz, Insertion Loss 1.8 to 2.2 dB, Capacitance 0.67 pF, Operating Temperature -40 to 125 Degree C. Tags: Surface Mount, SAW Resonator. More details for SR2442A can be seen below.