The DSC1001CL2-037.1250T: The AEC-Q100 rating places it in the under-hood temperature band — an engine ECU or transmission controller that sees 105°C ambient still holds timing margin without a separate TCXO.
Operating supply is 7.2 mA max across the 1.8V–3.3V range, so the same BOM position serves 2.5V and 3.3V domains without a separate LDO for the clock.
Housed in a 4-SMD, no-lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm. The 0.126" x 0.098" footprint matches industry-standard 3.2 x 2.5 mm oscillator pads — no layout change needed if replacing a quartz XO of the same size.