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Microchip Technology DSC1121AI5-010.0000 — Crystals & Oscillators

DSC1121AI5-010.0000 MEMS Oscillator 10 MHz ±10 ppm AEC-Q100

MPNDSC1121AI5-010.0000
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Microchip Technology DSC1121AI5-010.0000, XO (Standard) MEMS oscillator, 10 MHz CMOS output, ±10 ppm stability, AEC-Q100 qualified, -40°C to 85°C, 2.25V-3.6V supply, 6-SMD package

Microchip Technology DSC1121AI5-010.0000 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AI5-010.0000 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency10 MHz
Frequency stability±10ppm
Operating temperature-40°C~85°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTube
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead Exposed Pad

Product details

The DSC1121AI5-010.0000 is a MEMS-based XO (Standard) oscillator from Microchip's DSC1121 series, delivering a 10 MHz CMOS output with ±10 ppm frequency stability.

The wide supply voltage range of 2.25V to 3.6V lets this oscillator run directly from a 2.5V or 3.3V rail without an extra LDO, simplifying the power tree.

Housed in a 6-SMD, No Lead Exposed Pad package measuring 7.00mm x 5.00mm with a seated height of 0.90mm. The exposed pad provides a low-thermal-resistance path to the PCB — ensure the pad is soldered to a copper plane for best heat dissipation, especially in high-ambient-temperature automotive environments.

Enable/Disable function for power savings

This is useful for battery-powered or intermittently operated systems where the clock can be gated to save power when the downstream logic is idle.

Frequently asked questions

How does the DSC1121AI5-010.0000 compare to a standard quartz crystal oscillator?

The DSC1121AI5-010.0000 uses a MEMS resonator instead of a quartz crystal. MEMS oscillators are inherently more resistant to shock, vibration, and temperature cycling — a key advantage in automotive and industrial environments where quartz crystals can experience frequency drift or failure. The ±10 ppm stability is comparable to a good quartz oscillator, but the MEMS part does not require external load capacitors or a separate crystal.

Is the DSC1121AI5-010.0000 AEC-Q100 qualified?

Yes, it carries AEC-Q100 ratings, meaning it has passed automotive-grade reliability testing including temperature cycling, ESD, and latch-up. This qualifies it for under-hood and chassis-domain applications.