What the military temp range and AEC-Q100 mean for your BOM
The DSC1121BM2-007.3728 is a MEMS-based XO (Standard) oscillator from Microchip's DSC1121 series, delivering a 7.3728 MHz CMOS output with ±25 ppm frequency stability.
The wide supply range of 2.25V to 3.6V lets you run the oscillator directly from a 2.5V or 3.3V rail without an extra LDO.
Housed in a 6-SMD, No Lead package measuring 5.00 mm x 3.20 mm with a seated height of 0.90 mm, this oscillator fits standard 5x3.2 mm clock footprints. Surface-mount assembly is straightforward, but the small pad geometry calls for a controlled solder paste stencil to avoid bridging on the no-lead terminations.