The ACTR433F/433.92/TO39-2.6 from Advanced Crystal Technology is a SAW Resonator with Frequency 433.845 to 433.995 MHz, Centre Frequency 433.92 MHz, Insertion Loss 2.6 to 3.1 dB, Capacitance 1.9 to 2.5 pF, Quality Factor Loaded 2700. Tags: Drop In, SAW Resonator. More details for ACTR433F/433.92/TO39-2.6 can be seen below.