Skip to main content
Microchip Technology DSC1121CI2-051.8400 — Crystals & Oscillators

DSC1121CI2-051.8400 Microchip MEMS XO 51.84 MHz CMOS

MPNDSC1121CI2-051.8400
Active

Microchip DSC1121CI2-051.8400, MEMS-based XO (Standard), 51.84 MHz, CMOS output, ±25 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, AEC-Q100 qualified, 6-SMD no-lead package.

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

Specifications

DSC1121CI2-051.8400 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency51.84 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
PackageTube
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

51.84 MHz MEMS oscillator with automotive-grade reliability

AEC-Q100 qualification means this oscillator is characterized and reliability-tested for automotive applications — under-hood or cabin, where a standard quartz XO would not carry the required PPAP documentation. The MEMS base resonator replaces a quartz crystal, giving better shock and vibration immunity — relevant for engine-bay or chassis-mounted ECUs that see 50 g mechanical shock during assembly or operation.

Supply voltage and enable/disable for power-conscious designs

The enable/disable pin lets the system shut down the oscillator output, dropping supply current from 35 mA to 22 mA — useful in sleep-mode power budgets where every milliampere counts.

Active lifecycle — order against your BOM

Sourced through independent distribution; quoted to order against the BOM quantity.

Frequently asked questions

What is the exact frequency of DSC1121CI2-051.8400?

51.84 MHz, as the order code suffix indicates.

Is DSC1121CI2-051.8400 AEC-Q100 qualified?

Yes, it carries AEC-Q100 rating, making it suitable for automotive-grade designs requiring PPAP and reliability data.

Does DSC1121CI2-051.8400 support enable/disable function?

Yes, the part includes an enable/disable function. When disabled, supply current drops from 35 mA to 22 mA.