MEMS oscillator for automotive clocking
The DSC6003JI2A-004.0000T is a MEMS-based XO (Standard) from Microchip's DSC60XX series, delivering a 4 MHz CMOS output with ±25 ppm frequency stability across the full -40°C to +85°C industrial temperature range. Rated AEC-Q100, this oscillator is qualified for automotive-grade applications where reliability under thermal and mechanical stress is required — suitable for engine bay or cabin electronics. The enable/disable function allows the output to be tri-stated, reducing supply current to near-zero when the clock is not needed — useful for power-sensitive designs or test modes.
Microchip has designated the DSC6003JI2A-004.0000T as Obsolete. Available through independent surplus distribution; quantities are lot-specific and confirmed at RFQ. No official successor or pin-compatible replacement is listed by the manufacturer.
Package and supply voltage flexibility
Housed in a 4-SMD, No Lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.89 mm — a compact footprint for space-constrained automotive PCBs. Supply voltage range of 1.71V to 3.63V covers common 1.8V, 2.5V, and 3.3V rails without an external regulator, simplifying power tree design. Maximum supply current is 1.3 mA typical, keeping the thermal contribution low in dense assemblies.