The DSC1121DM2-040.0000 is a 40 MHz MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a CMOS output with ±25 ppm frequency stability across the full -55°C to 125°C military temperature range. That temperature span covers avionics, downhole drilling, satellite bus electronics, and missile-guidance systems — environments where a quartz crystal's aging or shock sensitivity would be a risk.
Enable/Disable function and 6-SMD package
Disabled current is 22 mA max, versus 35 mA max when active. Housed in a 6-SMD, No Lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm, this is a compact footprint that fits tight PCB layouts. Surface-mount assembly with no lead protrusion simplifies reflow and inspection.