The SiT2045B from SiTime is a XO with Frequency 115.2 to 137 MHz, Supply Voltage 1.62 to 3.63 V, Frequency Stability ±20, ±25, ±50 ppm, Current 4.9 to 8 mA (Current Consumption), Duty Cycle 45 to 55 %. Tags: Surface Mount. More details for SiT2045B can be seen below.