The ECS-H3 from ECS Inc. International is a General Crystal Oscillator with Frequency 10 to 250 MHz, Supply Voltage 2.97 to 3.63 V, Current 25 to 40 mA, Load Capacitance 15 pF, Phase Noise -155.9 to -84.7 dBc/Hz. Tags: Surface Mount. More details for ECS-H3 can be seen below.