The DSC1121NE5-066.6660 is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a 66.666 MHz CMOS output with ±10 ppm frequency stability across its -20°C to +70°C operating range. It carries AEC-Q100 qualification, making it suitable for automotive electronics that require documented reliability screening — engine control modules, transmission controllers, or infotainment clock trees that see under-hood or cabin temperature swings.
Supply range and package fit
Supply voltage spans 2.25 V to 3.6 V, covering 2.5 V and 3.3 V rails without an external regulator — one less part on the BOM for mixed-voltage designs. The 6-SMD no-lead package measures 7.00 mm x 5.00 mm with a seated height of 0.90 mm — a standard 7050 footprint that reworks cleanly under hot air if the pad layout follows the manufacturer's land pattern.