DSC6003HE1A-000.0000T is a MEMS-based XO (Standard) from Microchip's DSC60XX series, delivering a CMOS output across a 1 MHz to 80 MHz frequency range.
Obsolete – sourcing and replacement path
For new designs or ongoing production, a pin-compatible alternative from the same DSC60XX family with the same 4-SMD footprint and AEC-Q100 rating should be evaluated — the 1.71V–3.63V supply rail and CMOS output are common across the series, so a drop-in candidate likely exists with a different frequency or stability grade.
This part ships as a blank (unprogrammed) device — the user must program the target frequency before assembly. That adds a programming step and equipment cost. If your volume or turnaround doesn't justify in-house programming, a pre-programmed fixed-frequency variant from the DSC60XX family avoids that overhead.