The ACTR4009/433.92/QCC8B/1.5 from Advanced Crystal Technology is a SAW Resonator with Frequency 433.845 to 433.995 MHz, Centre Frequency 433.92 MHz, Insertion Loss 1.5 to 2.2 dB, Capacitance 1.9 to 2.5 pF, Quality Factor Loaded 1400. Tags: Surface Mount, SAW Resonator. More details for ACTR4009/433.92/QCC8B/1.5 can be seen below.