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Microchip Technology DSC1121AI2-019.4400C — Crystals & Oscillators

DSC1121AI2-019.4400C – Microchip MEMS XO, 19.4 MHz, CMOS

MPNDSC1121AI2-019.4400C
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Microchip DSC1121 AI2-019.4400C, MEMS-based XO (Standard), 19.4 MHz, CMOS output, ±25 ppm stability, 2.25–3.6 V supply, AEC-Q100 qualified, -40 to +85°C, 6-SMD exposed pad package.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AI2-019.4400C specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency19.4 MHz
Frequency stability±25ppm
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

Automotive-grade clock source — AEC-Q100 qualification confirmed

Capable is not qualified; this part is. Operating temperature range -40 to +85°C covers cabin and most chassis-domain environments. For under-hood applications requiring -40 to +125°C, verify the grade level — this part is not specified beyond 85°C.

Supply voltage range and output format for BOM fit

Supply voltage range 2.25 V to 3.6 V spans both 2.5 V and 3.3 V logic rails without an external LDO — a single BOM line covers mixed-voltage designs. The CMOS output directly drives most MCU and FPGA clock inputs; no level translation needed. Useful for power-sensitive nodes that sleep the clock tree during idle periods.

Package footprint and board layout notes

Package is 6-SMD, No Lead Exposed Pad, 7.00 mm x 5.00 mm body, seated height 0.90 mm max.

Lifecycle and ordering posture

New designs can commit without immediate obsolescence risk.

Frequently asked questions

What is the supply voltage range for DSC1121AI2-019.4400C?

Designers need to ensure the oscillator is compatible with their system's power rail, and buyers check specs before purchasing.

Is DSC1121AI2-019.4400C AEC-Q100 qualified?

Automotive applications require AEC-Q100 qualification; this question confirms suitability for rugged environments.

What is the package type and footprint of DSC1121AI2?

Mechanical fit is critical for PCB layout; buyers need this info to verify replacement or new design.

What is the output format of DSC1121AI2?

CMOS vs other outputs determines compatibility with the load; a mismatch can cause failure.

Where can I buy DSC1121AI2-019.4400C in stock?

Sourcing buyers need immediate availability and lead times to fill BOM lines without delays.

What is the function of the Enable/Disable pin on DSC1121?

This feature allows power saving or test mode; engineers must understand pin behavior to use it correctly.