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Microchip Technology DSC1121CM5-040.0000T — Crystals & Oscillators

DSC1121CM5-040.0000T MEMS Oscillator – 40 MHz, CMOS

MPNDSC1121CM5-040.0000T
Obsolete

Microchip Technology DSC1121CM5-040.0000T, XO (Standard) MEMS oscillator, 40 MHz CMOS output, ±10 ppm stability, 2.25V–3.6V supply, -55°C to 125°C, AEC-Q100, 6-SMD package.

Microchip Technology DSC1121CM5-040.0000T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

DSC1121CM5-040.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency40 MHz
Frequency stability±10ppm
Operating temperature-55°C~125°C
Size (Dimension)0.126\" L x 0.098\" W (3.20mm x 2.50mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

40 MHz MEMS oscillator with military temperature range

Rated AEC-Q100, this oscillator meets the automotive-grade reliability and PPAP requirements for under-hood and chassis-domain electronics.

Microchip lists the DSC1121CM5-040.0000T as Obsolete. No official successor or second-source is recorded from the original manufacturer. For new designs, a pin-compatible alternative in the same DSC1121 family may be considered — confirm the exact frequency, stability, and temperature grade against the BOM before committing.

Frequently asked questions

What is the replacement for DSC1121CM5-040.0000T?

Microchip has not published an official replacement for this specific order code. The DSC1121 series includes other frequency and stability variants; a pin-compatible alternative in the same 6-SMD package may work if the frequency (40 MHz), stability (±10 ppm), and temperature range (-55°C to 125°C) match the BOM requirement. Cross-reference against the datasheet before ordering.