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Microchip Technology DSC1003BE5-020.9450T — Crystals & Oscillators

DSC1003BE5-020.9450T MEMS Oscillator 20.945 MHz CMOS

MPNDSC1003BE5-020.9450T
Active

Microchip DSC1003 series, XO (Standard) MEMS oscillator, 20.945 MHz CMOS output, ±10 ppm frequency stability, 1.7V–3.6V supply, AEC-Q100 qualified, 4-SMD no-lead package.

Microchip Technology DSC1003BE5-020.9450T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1003BE5-020.9450T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1003
MountingSurface Mount
Supply voltage1.7V ~ 3.6V
Current - supply6mA
Current - supply (Disable)15µA
Frequency20.945 MHz
Frequency stability±10ppm
Operating temperature-20°C~70°C
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionStandby (Power Down)
Base resonatorMEMS
Case4-SMD, No Lead

Product details

The DSC1003BE5-020.9450T is a 20.945 MHz XO (Standard) MEMS oscillator from Microchip's DSC1003 series, delivering CMOS output with ±10 ppm frequency stability across its -20°C to 70°C operating range.

Supply range and standby power savings

The 1.7V to 3.6V supply range covers common 1.8V, 2.5V, and 3.3V rails without an external regulator — the oscillator runs directly from the core or I/O supply, simplifying the power tree.

Surface-mount footprint and sourcing posture

Housed in a 5.00 mm × 3.20 mm 4-SMD no-lead package, 0.90 mm seated height — the 0.197" × 0.126" footprint matches standard quartz oscillator land patterns, so a board laid out for a 5×3.2 mm XO accepts this MEMS part without a layout change. Product status is Active.

Frequently asked questions

Is DSC1003BE5-020.9450T AEC-Q100 qualified?

Yes, it carries AEC-Q100 ratings, meaning it has passed the automotive-grade stress tests for temperature cycling, ESD, and latch-up — suitable for use in engine control, transmission, or body electronics where the ambient temperature stays within its -20°C to 70°C range.

Can DSC1003BE5-020.9450T replace a standard 20.945 MHz crystal oscillator?

Yes, if the existing oscillator is a 5.0 mm × 3.2 mm 4-pin CMOS-output XO with a 1.7V–3.6V supply. The MEMS die replaces the quartz resonator internally, but the electrical interface — CMOS output, enable/standby pin, supply — is identical to a standard oscillator. No PCB change is needed.