The DSC1001BL1-048.0000T is a 48 MHz MEMS-based XO (Standard) from Microchip's DSC1001 series, delivering CMOS output across a 1.8V to 3.3V supply range. The MEMS base resonator provides faster startup and better vibration tolerance than quartz — relevant for engine-bay and chassis-mounted electronics.
Housed in a 4-SMD, no-lead package measuring 5.00mm x 3.20mm with a seated height of 0.90mm — a standard 5.0x3.2mm oscillator footprint that matches many quartz XO land patterns. Surface-mount on tape and reel; the 0.90mm profile fits tight board stacks in automotive ECU enclosures.
Quoted to order against BOM quantities through independent distribution. No official second-source or pin-compatible replacement listed; the DSC1001 series is the current production family.