SCTF SMD MultiVolt Crystal Oscillators are used metal surface-mount,These oscillators are housed in a 7.0mm x 5.0mm ceramic package,CMOS output, extended temperature range of -40°C to +85°C, compatible with 1.8V, 2.5V, or 3.3V power supplies, RoHS compliant, suited for low power/portable, industrial, and Internet of Things (IoT) applications.