The ECS-L3 from ECS Inc. International is a General Crystal Oscillator with Frequency 10 to 1500 MHz, Supply Voltage 3.135 to 3.465 V, Current 18 to 28 mA, Output Load 100 Ohms, Phase Noise -152 to -42 dBc/Hz. Tags: Surface Mount. More details for ECS-L3 can be seen below.