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Microchip Technology DSC1033DI1-044.0000 — Crystals & Oscillators

DSC1033DI1-044.0000 MEMS XO, 44 MHz, ±50 ppm

MPNDSC1033DI1-044.0000
Active

Microchip DSC1033DI1-044.0000, XO (Standard) MEMS oscillator, 44 MHz CMOS output, ±50 ppm stability, 3.3V, -40 to 85°C, 4-SMD no-lead package

Microchip Technology DSC1033DI1-044.0000 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1033DI1-044.0000 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1033, PureSilicon™
MountingSurface Mount
Supply voltage3.3V
Current - supply4mA (Typ)
Current - supply (Disable)1µA
Frequency44 MHz
Frequency stability±50ppm
Operating temperature-40°C~85°C
Size (Dimension)0.098\" L x 0.079\" W (2.50mm x 2.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTube
FunctionStandby (Power Down)
Base resonatorMEMS
Case4-SMD, No Lead

Product details

44 MHz MEMS XO with ±50 ppm stability

Operating from a single 3.3V supply, it draws a typical 4 mA max in active mode and drops to 1 µA max in standby (power-down) — the standby function disables the output and cuts supply current to near-zero for battery-powered or duty-cycled designs.

Industrial temp grade and MEMS reliability

The 4-SMD, no-lead package measures 2.50 x 2.00 mm with a seated height of 0.90 mm — a standard 4-pin footprint that places without tombstoning risk on a typical reflow profile. No external load capacitors are needed; the MEMS resonator and oscillator circuit are integrated inside the package.

Frequently asked questions

What is the frequency stability of DSC1033DI1-044.0000?

±50 ppm across the -40 to 85°C operating range. This is the standard stability grade for the DSC1033 series; it covers most industrial timing needs without the tighter ±25 ppm option.

Does DSC1033DI1-044.0000 require external load capacitors?

No. The MEMS resonator and oscillator circuitry are fully integrated inside the 4-SMD package. No external load capacitors or bias resistors are needed — just connect the supply and output.

What is the standby current of DSC1033DI1-044.0000?

1 µA max when the standby (power-down) function is asserted. This makes the part suitable for battery-powered designs that need to disable the clock during sleep modes.

Can DSC1033DI1-044.0000 replace a crystal oscillator?

Yes, as a MEMS-based XO it is a drop-in replacement for a quartz crystal oscillator in the same 4-pin SMD footprint, provided the supply voltage (3.3V), output type (CMOS), and frequency (44 MHz) match. The MEMS version offers better shock and vibration immunity.