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Microchip Technology DSC1121CI2-030.0000T — Crystals & Oscillators

DSC1121CI2-030.0000T MEMS Oscillator 30MHz CMOS AEC-Q100

MPNDSC1121CI2-030.0000T
Active

Microchip DSC1121CI2-030.0000T, XO (Standard) 30 MHz CMOS MEMS oscillator, AEC-Q100 qualified, -40°C to 85°C, 2.25V-3.6V supply, 6-SMD no-lead package.

Microchip Technology DSC1121CI2-030.0000T datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121CI2-030.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency30 MHz
Frequency stability±25ppm
Operating temperature-40°C~85°C
Size (Dimension)0.126\" L x 0.098\" W (3.20mm x 2.50mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

30 MHz MEMS oscillator for automotive timing

The DSC1121CI2-030.0000T is a 30 MHz fixed-frequency XO (Standard) oscillator built on a MEMS resonator, delivering CMOS output in a 6-SMD no-lead package measuring 3.20 mm x 2.50 mm.

AEC-Q100 qualification and deployment context

Rated AEC-Q100, this oscillator is qualified for automotive-grade stress and reliability — suitable for under-hood ECU, cabin infotainment, and chassis-domain modules where temperature cycling and vibration are routine. The MEMS resonator base gives better shock and vibration immunity than quartz, which matters for engine-mounted or transmission-attached PCBs.

Enable/Disable function and supply current

The Enable/Disable function lets the system gate the oscillator output without cycling the power rail — useful for power-save modes in battery-backed modules. Maximum supply current is 35 mA when enabled; when disabled the current drops to 22 mA max, still drawing from the rail but stopping the output clock.

Frequently asked questions

Can DSC1121CI2-030.0000T run from a 2.5V supply?

Yes, the supply voltage range is 2.25 V to 3.6 V, so a 2.5 V rail is within spec.

What is the difference between MEMS and quartz oscillators for this part?

The MEMS resonator in the DSC1121 series offers higher shock and vibration tolerance compared to quartz, and the frequency stability (±25 ppm) is specified over the full industrial temperature range without the aging drift typical of quartz crystals.

Is DSC1121CI2-030.0000T a drop-in replacement for standard 30 MHz oscillators?

It is a pin-compatible 6-SMD no-lead package with CMOS output and a wide supply range, so it can replace many standard 30 MHz XO oscillators in the same footprint, provided the Enable/Disable logic and supply voltage are compatible.