The SiT9551 from SiTime is a XO with Frequency 25 to 644 MHz, Supply Voltage 1.71 to 3.63 V, Frequency Stability ±20 ppm, ±50 ppm, Jitter 70 fs, Operating Temperature -55 to 125 Degree C. Tags: Surface Mount, Low G Sensitivity. More details for SiT9551 can be seen below.