ECS-2520SMV Crystal Oscillators ECS ECS-2520SMV Crystal Oscillators are miniature SMD HCMOS oscillators with Multi Volt™ capability ranging from 1.62V to 3.63V with tight stability of ±5ppm or ±10ppm. These low-power crystal oscillators operate at a frequency range of 8MHz to 60MHz and at a temperature range of -40°C to +105°C. The ECS-2520SMV crystal oscillators come in an easily-portable 2.5mm x 2mm x 1mm ceramic package. These oscillators are ideally used in industrial and IoT applications.