The DSC6001CI1A-012.0000 is a 12 MHz XO (Standard) MEMS oscillator from Microchip's DSC60XX series, delivering a CMOS output in a 4-VDFN surface-mount package measuring 3.20mm x 2.50mm.
Obsolete – sourcing and replacement path
If you need a drop-in alternative, the DSC60XX series includes other 12 MHz XO variants with the same package and pinout – consult the series datasheet for active order codes that match the 4-VDFN footprint.
The 4-VDFN package has a 0.90mm seated height and a 3.20mm x 2.50mm footprint – a standard land pattern that places without tombstoning risk on a typical reflow profile.