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Microchip Technology DSC1121CE1-033.3333 — Crystals & Oscillators

DSC1121CE1-033.3333 MEMS XO 33.3333 MHz CMOS AEC-Q100

MPNDSC1121CE1-033.3333
Active

Microchip Technology DSC1121CE1-033.3333, XO (Standard) CMOS output 33.3333 MHz MEMS oscillator, 2.25V–3.6V supply, ±50 ppm stability, AEC-Q100 qualified, 6-SMD no-lead package.

$0.9600Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121CE1-033.3333 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency33.3333 MHz
Frequency stability±50ppm
Operating temperature-20°C~70°C
Size (Dimension)0.126\" L x 0.098\" W (3.20mm x 2.50mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTube
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

Supply voltage and stability across temperature

Runs from 2.25 V to 3.6 V, covering 2.5 V and 3.3 V logic rails without an external regulator. Frequency stability is ±50 ppm — tight enough for 100BASE-TX Ethernet jitter budgets and most automotive serial links.

Package and board-fit

Housed in a 6-SMD no-lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a common footprint shared with many quartz and MEMS oscillators. Surface-mount reflow profile follows standard lead-free solder profiles; no special bake-out required for MSL level 1.

Frequently asked questions

Is the DSC1121CE1-033.3333 AEC-Q100 qualified?

Yes. The ratings field explicitly lists AEC-Q100, confirming automotive-grade qualification. This covers the -20°C to 70°C operating temperature range and the reliability stress tests required for automotive ICs.

What is the difference between the DSC1121 and DSC1122 series?

The DSC1121 series (this part) provides a standard CMOS output with enable/disable function. The DSC1122 series adds a standby mode with lower disable current. Both share the same 6-SMD package, supply range, and AEC-Q100 qualification — the choice depends on whether the application needs the deeper power-down of the DSC1122.