The ECX-H27CM-18.432 from ECS Inc. International is a General Crystal Oscillator with Frequency 18.432 MHz, Supply Voltage 2.5 V, Current 40 mA, Frequency Stability ±25 ppm, Operating Temperature -20 to 70 Degree C. Tags: Surface Mount. More details for ECX-H27CM-18.432 can be seen below.