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Microchip Technology DSC1033AE1-040.0000T — Crystals & Oscillators

DSC1033AE1-040.0000T MEMS Oscillator – 40 MHz, ±50 ppm, CMOS

MPNDSC1033AE1-040.0000T
Active

Microchip DSC1033AE1-040.0000T, PureSilicon™ MEMS XO, 40 MHz, CMOS output, ±50 ppm stability, 3.3 V supply, 4 mA typical active current, 1 µA standby, -20°C to 70°C, 4-SMD no-lead exposed pad package, Tape & Reel.

Microchip Technology DSC1033AE1-040.0000T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1033AE1-040.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1033, PureSilicon™
MountingSurface Mount
Supply 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
PackageTape & Reel (TR)
FunctionStandby (Power Down)
Base resonatorMEMS
Case4-SMD, No Lead Exposed Pad

Product details

MEMS oscillator at 40 MHz — what it replaces and where it fits

At 4 mA typical supply current in active mode and 1 µA in standby (power-down), it draws significantly less than a comparable quartz oscillator — the standby current is low enough that the oscillator can remain connected to a battery rail without a load switch.

Package and reflow — 4-SMD no-lead exposed pad

The exposed pad provides a low thermal impedance path to the PCB — ensure the solder paste coverage under the pad is uniform to avoid tilt during reflow.

Frequently asked questions

Can DSC1033AE1-040.0000T replace a quartz oscillator on the same BOM?

Yes — it is a drop-in MEMS replacement for a 40 MHz quartz XO with CMOS output and 3.3 V supply. The ±50 ppm stability matches many commercial-grade quartz parts. The standby (power-down) function is an added feature that a basic quartz oscillator may not offer — verify that the enable pin logic aligns with your circuit's power-down scheme.

What is the standby current of DSC1033AE1-040.0000T?

The maximum supply current in disable (standby) mode is 1 µA. This makes the part suitable for battery-powered equipment where the oscillator must remain connected to the supply rail but draw negligible current when the system is asleep.

Is DSC1033AE1-040.0000T compatible with a 2.5 V supply?

No — the specified supply voltage is 3.3 V only. For a 2.5 V rail, look at the DSC1033 family variants with a 2.5 V option (check the base product number DSC1033 suffix).