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Microchip Technology DSC1121BI2-048.0000T — Crystals & Oscillators

DSC1121BI2-048.0000T MEMS Oscillator

MPNDSC1121BI2-048.0000T
Active

Microchip Technology DSC1121 series, XO (Standard) MEMS oscillator, 48 MHz, CMOS output, ±25 ppm stability, AEC-Q100 qualified, 6-SMD no-lead package.

Microchip Technology DSC1121BI2-048.0000T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121BI2-048.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency48 MHz
Frequency stability±25ppm
Operating temperature-40°C~85°C
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

AEC-Q100 qualification places this oscillator in the automotive-grade bin — it is tested to the stress and reliability profile required for under-hood and chassis-domain ECUs. The 2.25V to 3.6V supply range covers both 2.5V and 3.3V rails without an external regulator, simplifying the power tree on a multi-voltage board.

Enable/Disable control and supply current

Housed in a 6-SMD, No Lead package measuring 5.00mm x 3.20mm with a seated height of 0.90mm. The no-lead footprint means the solder joint is under the package body — inspectability is limited, so a 2D X-ray or AOI station is the practical post-reflow check.

Frequently asked questions

Is DSC1121BI2-048.0000T AEC-Q100 qualified?

Yes, it carries AEC-Q100 qualification, which means it passed the automotive-grade stress tests: temperature cycling, ESD, latch-up, and extended high-temperature operating life. It is suitable for under-hood and chassis-domain ECUs where the ambient temperature can reach 85°C.

What is the output type of DSC1121BI2-048.0000T?

The output is CMOS, a single-ended rail-to-rail swing that drives standard digital logic inputs directly. No external termination or level translation is needed when connecting to a 2.5V or 3.3V microcontroller clock input.

Does DSC1121BI2-048.0000T have an enable/disable function?

Yes. The Enable/Disable pin lets you gate the clock output. When disabled, the oscillator stops switching but remains powered; the supply current drops from 35 mA max to 22 mA max. This is useful for power-saving modes where the clock must be restored without the start-up delay of a full power cycle.