What the full temperature range means for your BOM
The oscillator keeps ±50 ppm frequency stability across that entire span, so a CAN bus or Ethernet PHY clock in an engine-bay ECU or an avionics black box doesn't drift out of lock when the ambient hits 105°C.
Automotive qualification and MEMS reliability
AEC-Q100 qualified — the same reliability stress and PPAP documentation that Tier-1 automotive suppliers require. Combined with a MEMS base resonator, the part survives the shock and vibration profile of a transmission-mounted sensor module better than a quartz can.
Supply voltage tolerance and output drive
Operates from 2.25V to 3.6V with CMOS output — drop it onto a 2.5V or 3.3V rail without a separate LDO.
6-SMD, No Lead Exposed Pad package, 7.00mm x 5.00mm body, 0.90mm seated height. Surface-mount on a standard FR-4 board; the exposed pad helps conduct heat to the ground plane.
No official second-source or pin-compatible drop-in from another manufacturer, but the DSC1121 series has multiple frequency variants if you need a different clock speed in the same footprint.