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Microchip Technology DSC1033AE1-040.0000 — Crystals & Oscillators

DSC1033AE1-040.0000 40 MHz MEMS XO, 3.3 V CMOS

MPNDSC1033AE1-040.0000
Active

Microchip DSC1033AE1-040.0000, PureSilicon™ series, XO (Standard) MEMS oscillator, 40 MHz, CMOS output, 3.3 V supply, ±50 ppm stability, -20°C to +70°C, 4-SMD no-lead exposed-pad package.

Microchip Technology DSC1033AE1-040.0000 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1033AE1-040.0000 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1033, PureSilicon™
MountingSurface Mount
Voltage3.3V
Current - supply4mA (Typ)
Current - supply (Disable)1µA
Frequency40 MHz
Frequency stability±50ppm
Operating temperature-20°C~70°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTube
FunctionStandby (Power Down)
Base resonatorMEMS
Case4-SMD, No Lead Exposed Pad

Product details

The DSC1033AE1-040.0000 is a 40 MHz XO (Standard) oscillator from Microchip's PureSilicon™ MEMS family, delivering a CMOS output at 3.3 V supply.

Active current and standby power-down

Active current draw is 4 mA typ at 40 MHz — low enough that a simple 3.3 V LDO can feed it without thermal concern. The enable pin is the standby control; when pulled low the output goes high-impedance and the internal oscillator stops.

The 4-SMD, no-lead exposed-pad package measures 7.00 mm × 5.00 mm with a seated height of 0.90 mm. The four pads are standard: enable, ground, output, and Vdd. No via-in-pad is required; a single via per pad outside the footprint is sufficient.

Frequently asked questions

Is the DSC1033AE1-040.0000 RoHS compliant?

Yes, the part is RoHS compliant as indicated by its lead-free construction and the absence of any RoHS exemption flags in the product documentation.

Does the DSC1033AE1-040.0000 have an enable pin?

Yes, it has a standby (power-down) function controlled by an enable pin. When the pin is pulled low, the output is disabled and supply current drops to 1 µA max.

What is the closest pin-compatible alternative to the DSC1033AE1-040.0000 in the same family?

Within the DSC1033 series, the DSC1033AE1-040.0000T is the tape-and-reel variant with identical electrical specs and footprint. For a different frequency, the DSC1033 family covers a range from 1 MHz to 150 MHz in the same 7.0 × 5.0 mm package. No direct pin-compatible quartz alternative exists — a MEMS-to-quartz swap requires a board spin due to different decoupling and pad layout.