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Microchip Technology DSC1121AI1-025.0000T — Crystals & Oscillators

DSC1121AI1-025.0000T – Microchip MEMS XO, 25 MHz, AEC-Q100

MPNDSC1121AI1-025.0000T
Active

Microchip DSC1121 series MEMS XO (Standard), 25 MHz, CMOS output, AEC-Q100 qualified, -40 to 85°C, 2.25-3.6V supply, 6-SMD package.

$1.0350Ref. price · indicative, final on quote
Microchip Technology DSC1121AI1-025.0000T datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AI1-025.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency25 MHz
Frequency stability±50ppm
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
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead Exposed Pad

Product details

25 MHz MEMS oscillator with AEC-Q100 qualification

The DSC1121AI1-025.0000T is a 25 MHz MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a CMOS output. Its AEC-Q100 rating means it has passed the full automotive IC qualification suite — temperature cycling, ESD, latch-up, and reliability stress — making it suitable for under-hood and cabin electronics where a standard quartz oscillator would not meet the PPAP documentation requirement.

Supply voltage and temperature range for automotive and industrial use

The supply voltage range spans 2.25V to 3.6V, so this oscillator can be powered directly from a 2.5V or 3.3V rail without a dedicated LDO — a single rail simplifies the BOM for an ECU or telematics unit.

MEMS resonator vs. quartz — vibration and reliability advantage

The base resonator is MEMS rather than quartz. MEMS oscillators have inherently higher shock and vibration tolerance than quartz crystals, which matters for engine-bay and chassis-mounted ECUs that see 50 g mechanical shock. The Enable/Disable function lets the system pull the output to high-Z and drop supply current from 35 mA to 22 mA during sleep modes.

Active lifecycle — design-in ready

The product status is Active.

Frequently asked questions

Is DSC1121AI1-025.0000T AEC-Q100 qualified?

Yes, it carries an AEC-Q100 rating. This means it has passed the automotive-grade qualification tests including temperature cycling, ESD, latch-up, and reliability stress per AEC-Q100 requirements. An OEM auditor will accept the PPAP documentation for this part.

Can DSC1121AI1-025.0000T be substituted with a standard quartz oscillator?

A standard quartz oscillator at 25 MHz with CMOS output and the same 6-SMD footprint could be a functional substitute, but it will lack the AEC-Q100 qualification and MEMS shock tolerance. For a non-automotive design, a quartz XO may work; for an automotive BOM, the DSC1121's qualification is the reason to use it.