The ECS-2520S HCMOS from ECS Inc. International is a General Crystal Oscillator with Frequency 3.2 to 55 MHz, Supply Voltage 1.8 to 3.3 V, Current 7 mA, Standby Current 10 uA, Load Capacitance 15 pF. Tags: Surface Mount. More details for ECS-2520S HCMOS can be seen below.