The DSC1121DE1-025.0012 is a MEMS-based standard oscillator (XO) from Microchip's DSC1121 series, delivering a fixed 25.0012 MHz CMOS output with enable/disable control.
The 2.25V to 3.6V supply range spans both 2.5V and 3.3V logic rails — no external LDO needed when switching between processor core and I/O domains.
Housed in a 6-SMD no-lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm, this oscillator fits tight PCB layouts — the 2.5 mm length aligns with standard 0805 capacitor footprints, simplifying placement on dense automotive PCBs. Surface-mount assembly with no leads means the solder joint is under the package — ensure the PCB pad design matches the recommended land pattern to avoid tombstoning during reflow.