The ACTR5504/434.42/QCC8C from Advanced Crystal Technology is a SAW Resonator with Frequency 434.345 to 434.495 MHz, Centre Frequency 434.42 MHz, Insertion Loss 2 to 2.6 dB, Capacitance 2.9 to 3.4 pF, Quality Factor Loaded 1500. Tags: Surface Mount, SAW Resonator. More details for ACTR5504/434.42/QCC8C can be seen below.