The DSC1121AI2-150.0000T is a 150 MHz MEMS-based XO with CMOS output, rated over -40°C to 85°C and qualified to AEC-Q100 — meaning it's production-ready for engine-bay ECUs, ADAS camera modules, or industrial Ethernet controllers that need a clean 150 MHz reference. Supply voltage spans 2.25V to 3.6V, so it runs directly off a 2.5V or 3.3V rail without an extra LDO — one less part on the BOM.
Active lifecycle — no last-time-buy scramble
Microchip lists this part as Active.
MEMS oscillators are inherently more shock- and vibration-tolerant — a real advantage if this board sees a drop-test or lives on a vehicle chassis. The trade-off is that the phase-noise floor is typically higher than a good quartz oscillator, but for a 150 MHz CMOS clock driving a digital ASIC or FPGA, the ±25 ppm stability is tight enough for most serial interfaces.
6-SMD package — footprint and layout notes
Housed in a 7.00mm x 5.00mm 6-SMD package with an exposed pad. Seated height is 0.90mm max, so it clears most enclosure profiles.