The DSC1001AI5-100.0000 is a 100 MHz XO (Standard) oscillator built on a MEMS resonator rather than a quartz crystal, outputting a CMOS-level clock from a 1.8V to 3.3V supply rail.
Frequency stability and temperature range for ECU timing margin
The 85°C upper limit covers cabin and most under-hood locations, but not extended engine-bay zones above 85°C — confirm the ECU ambient temperature profile against this grade.
The 4-SMD, No Lead Exposed Pad package measures 7.00 mm x 5.00 mm with a seated height of 0.90 mm — a standard 7x5 mm oscillator footprint that matches many quartz XO land patterns.