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Microchip Technology DSC1121AL5-012.0000T — Crystals & Oscillators

DSC1121AL5-012.0000T MEMS Oscillator 12 MHz CMOS - Microchip

MPNDSC1121AL5-012.0000T
Active

Microchip Technology DSC1121AL5-012.0000T, XO (Standard) MEMS oscillator, 12 MHz CMOS output, ±10ppm frequency stability, -40°C~105°C industrial temperature range, 6-VDFN exposed pad package.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AL5-012.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency12 MHz
Frequency stability±10ppm
Operating temperature-40°C~105°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN Exposed Pad

Product details

12 MHz MEMS clock source with industrial temp range

The DSC1121AL5-012.0000T is a 12 MHz XO (Standard) oscillator built on a MEMS resonator rather than a quartz crystal — the MEMS structure delivers better shock and vibration tolerance than a quartz blank, and the supply chain avoids the 8–12 week lead times typical of crystal oscillators. Output is CMOS, so it drives the clock input of an MCU, FPGA, or Ethernet PHY directly without a level translator. The Enable/Disable function lets the system shut the oscillator off when the clock tree is idle, dropping supply current from 35 mA to 22 mA.

Active production — no LTB risk

The DSC1121 series is a current product family; new designs can commit to this order code without a last-time-buy contingency.

Supply voltage tolerance and board-fit

Packaged in a 6-VDFN with exposed pad, 7.00 mm x 5.00 mm footprint, 0.90 mm seated height.

Frequently asked questions

Can DSC1121AL5-012.0000T replace a quartz crystal oscillator on my board?

Functionally yes — it is a drop-in 12 MHz CMOS clock source with the same pinout as many 7x5 mm SMD oscillators. The MEMS resonator inside is more shock-tolerant than a quartz blank, but the output drive strength and rise time are CMOS-compatible.