The ACTR4108/433.92MHz/QCC2A/75kHz from Advanced Crystal Technology is a SAW Resonator with Frequency 433.845 to 433.995 MHz, Centre Frequency 433.92 MHz, Insertion Loss 2.2 to 2.6 dB, Capacitance 1.9 to 2.4 pF, Quality Factor Loaded 1650. Tags: Surface Mount, SAW Resonator. More details for ACTR4108/433.92MHz/QCC2A/75kHz can be seen below.