The DSC1033DI1-048.0000T is a MEMS-based XO (Standard) delivering a 48 MHz CMOS output from a 3.3V rail, in a 2.50 mm × 2.00 mm 4-SMD no-lead package.
Obsolete — sourcing path for production and repair
Microchip lists the DSC1033DI1-048.0000T as Obsolete. No stock-holding claim is made; availability is verified per inquiry.
Package and supply — board-fit checklist
4-SMD no-lead package, 2.50 mm × 2.50 mm footprint, 0.90 mm seated height. The 3.3V supply rail must be clean within ±10 %; the MEMS oscillator's internal regulator rejects moderate ripple, but a 100 nF decoupling cap within 2 mm of the supply pin is standard practice. The CMOS output drives up to 15 pF load — typical for feeding a single MCU clock input or FPGA global clock buffer.