The S7D40.000000D20F30T is an XO (SMD Oscillator) with a 40MHz ±20ppm frequency stability. It features an SMD-7050-4P package and is RoHS compliant. This oscillator is manufactured by SCTF and is used in various electronic devices. It provides a highly reliable and stable source of clock and timing signals for computer-based systems and other electronic devices. It can be used in communication, medical, automotive, industrial, military and aerospace applications. It offers rapid start-up for reliable and accurate system-level timing.