The DSC1001CE2-027.0000 is a 27 MHz MEMS-based oscillator from Microchip's DSC1001 series, delivering a CMOS output with ±25 ppm frequency stability. The 1.8V to 3.3V supply range lets it drop into mixed-voltage designs without a dedicated LDO — the same BOM line serves a 3.3V Ethernet PHY and a 1.8V MCU clock input.
It suits automotive cabin electronics (HVAC, radio, cluster) and indoor industrial gear, but not under-hood or outdoor exposed equipment where -40°C ambient is common. The AEC-Q100 rating covers the reliability stress tests at this temperature band, not an extended range.
Housed in a 4-SMD, No Lead package measuring 3.20mm x 2.50mm with a seated height of 0.90mm.