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Microchip Technology DSC1121AE2-050.0000 — Crystals & Oscillators

DSC1121AE2-050.0000 MEMS XO 50 MHz CMOS AEC-Q100 Active

MPNDSC1121AE2-050.0000
Active

Microchip DSC1121AE2-050.0000, XO (Standard) MEMS oscillator, 50 MHz CMOS output, ±25 ppm stability, AEC-Q100 qualified, surface-mount 6-SMD package.

Microchip Technology DSC1121AE2-050.0000 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AE2-050.0000 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency50 MHz
Frequency stability±25ppm
Operating temperature-20°C~70°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTube
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead Exposed Pad

Product details

50 MHz MEMS XO with AEC-Q100 qualification

The DSC1121AE2-050.0000 is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a fixed 50 MHz CMOS output with ±25 ppm frequency stability across its -20°C to 70°C operating range. AEC-Q100 qualification means this oscillator has passed automotive-grade reliability stress tests — suitable for infotainment, ADAS camera modules, or body-control ECUs where a quartz failure at temperature extremes is not acceptable. The enable/disable function lets the system pull the output to high-impedance when the clock tree is idle, cutting supply current from 35 mA max to 22 mA max — a useful power-save for battery-backed or thermal-constrained designs.

Supply voltage and package fit

Wide supply range of 2.25 V to 3.6 V covers common 2.5 V and 3.3 V rails without an external LDO — the oscillator operates directly from the core or I/O supply.

Frequently asked questions

What is the frequency stability of DSC1121AE2-050.0000?

±25 ppm over the -20°C to 70°C operating range. This is the total frequency variation including temperature, supply voltage, and aging — adequate for most 50 MHz clock trees in automotive infotainment or industrial control.

Is DSC1121AE2-050.0000 AEC-Q100 qualified?

Yes, it carries AEC-Q100 ratings, meaning it has passed the automotive-grade stress tests (temperature cycling, ESD, latch-up, etc.) required for under-hood or cabin electronics.

What does the enable/disable function do on DSC1121AE2-050.0000?

When the enable pin is de-asserted, the output goes to high-impedance (tri-state) and the supply current drops from 35 mA max to 22 mA max. This allows the clock tree to be disabled without removing power from the oscillator.

Does DSC1121AE2-050.0000 have a tri-state output?

Yes — the enable/disable function puts the output into high-impedance when disabled. This is equivalent to a tri-state output for bus-sharing or power-save applications.