Skip to main content
Microchip Technology DSC1121AE5-033.8688 — Crystals & Oscillators

DSC1121AE5-033.8688 MEMS XO – 33.8688 MHz, AEC-Q100, CMOS

MPNDSC1121AE5-033.8688
Active

Microchip DSC1121AE5-033.8688, XO (Standard), 33.8688 MHz, CMOS output, ±10 ppm stability, 2.25 V – 3.6 V supply, AEC-Q100, 6-SMD package.

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

Specifications

DSC1121AE5-033.8688 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency33.8688 MHz
Frequency stability±10ppm
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

33.8688 MHz MEMS XO with AEC-Q100 qualification

Rated AEC-Q100, this oscillator is qualified for automotive applications where temperature cycling and vibration resistance are specified — the MEMS resonator inherently withstands shock better than quartz, which matters for under-hood or chassis-mounted ECUs. The Enable/Disable function lets the output be tri-stated, pulling supply current from 35 mA max to 22 mA max in disable — useful for power-sequenced or fault-tolerant clock trees.

This is a design-in grade part, not a last-time-buy candidate. No stock-holding claim is made; each order is quoted to order.

Package and mounting for 6-SMD

Housed in a 6-SMD, No Lead Exposed Pad package measuring 7.00 mm x 5.00 mm with a seated height of 0.90 mm max. The surface-mount footprint is standard for this form factor; the exposed pad requires a thermal via pattern under the package for proper solder joint inspection and thermal relief.

Frequently asked questions

Is the DSC1121AE5-033.8688 AEC-Q100 qualified?

Yes, the DSC1121AE5-033.8688 carries AEC-Q100 rating, meaning it has passed automotive-grade reliability stress tests including temperature cycling, ESD, and latch-up. This qualifies it for use in automotive electronic systems where the supplier requires PPAP documentation.

Does the DSC1121AE5-033.8688 have an enable/disable function?

Yes, the Enable/Disable function is standard. When disabled, the output goes high-impedance and supply current drops from 35 mA max to 22 mA max, useful for power management in multi-clock systems.

Is the DSC1121AE5-033.8688 a MEMS oscillator?

Yes, the base resonator is MEMS, not quartz. MEMS oscillators offer better shock and vibration tolerance, faster startup, and typically shorter lead times compared to quartz-based XOs. The DSC1121 series is Microchip's MEMS-based oscillator family.