The DSC6001HI1A-040.0000T is a 40 MHz MEMS-based XO (standard oscillator) with CMOS output and Enable/Disable function, housed in a 4-SMD no-lead package measuring 1.60 mm x 1.20 mm. It operates from a 1.71V to 3.63V supply rail and holds ±50 ppm frequency stability across the full -40°C to +85°C industrial temperature range. AEC-Q100 qualification makes this part suitable for automotive electronic modules — engine control, transmission, or body-domain ECUs — where the MEMS resonator's shock and vibration tolerance exceeds that of quartz crystals.
No official successor is listed by Microchip, so a pin-compatible drop-in replacement is not guaranteed from the original manufacturer. For buyers needing an AEC-Q100 MEMS XO at 40 MHz in a 1.6 mm x 1.2 mm package, the DSC60XX series includes other active order codes — but each frequency and stability variant is a unique MPN. Cross-referencing the full DSC60XX datasheet against the BOM's timing requirements is the recommended path for a production-ready alternative.
The 4-SMD no-lead package has a 0.063" x 0.047" footprint (1.60 mm x 1.20 mm) with a seated height of 0.035" (0.89 mm).