The ACTR433TS/433.92/F11SMD-1.8 from Advanced Crystal Technology is a SAW Resonator with Frequency 433.845 to 433.995 MHz, Centre Frequency 433.92 MHz, Insertion Loss 1.8 to 2.4 dB, Capacitance 1.8 to 2.4 pF, Quality Factor Loaded 1600. Tags: Surface Mount, SAW Resonator. More details for ACTR433TS/433.92/F11SMD-1.8 can be seen below.