The DSC1033CC2-012.0000T is a 12 MHz MEMS-based oscillator from Microchip's PureSilicon™ series, delivering a CMOS output at 3.3V with ±25ppm frequency stability. It comes in a 4-SMD no-lead package measuring 3.20mm x 2.50mm — a common footprint shared with many MEMS oscillators, so layout reuse across alternate parts is straightforward.
Microchip lists the DSC1033CC2-012.0000T as Obsolete. No official successor part number is recorded in the lifecycle data. For a drop-in replacement, look for other 12 MHz MEMS oscillators in the same 3.2mm x 2.5mm 4-SMD package with CMOS output and 3.3V supply — several manufacturers offer functionally equivalent parts.
This oscillator is suited for indoor office equipment, consumer electronics, and appliances. It is not qualified for industrial or automotive environments where -40°C or +85°C ambient is common.