The DSC1001CI1-111.0000T is a MEMS-based XO (Standard) oscillator delivering a fixed 111 MHz CMOS output.
What the AEC-Q100 rating means for your BOM
A standard crystal oscillator (quartz XO) typically carries no automotive qualification — a 50 ppm quartz part at 111 MHz might drift beyond ±100 ppm under the engine-bay thermal cycle and vibration. The DSC1001CI1-111.0000T holds ±50 ppm frequency stability across its full temperature range, and the MEMS resonator is inherently more shock- and vibration-resistant than a quartz blank. For a BOM that must pass PPAP or IATF 16949, the AEC-Q100 mark saves the cost of qualifying an unrated oscillator yourself.
No official second-source or pin-compatible cross-reference is published; the DSC1001 family uses a standard 4-SMD, No Lead footprint that matches the industry-common 3.2 mm x 2.5 mm oscillator land pattern.
The oscillator accepts a 1.8 V to 3.3 V supply rail — one part number covers the three common logic levels, reducing inventory line items. Maximum supply current is 8.7 mA at full 111 MHz operation; in standby (power-down) mode the disable current drops to 15 µA, so the oscillator can be gated by a GPIO to save power in a battery-backed system without an external load switch.