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Microchip Technology DSC1121CI2-048.0000 — Crystals & Oscillators

DSC1121CI2-048.0000 48 MHz MEMS XO – AEC-Q100, CMOS, Active

MPNDSC1121CI2-048.0000
Active

Microchip DSC1121CI2-048.0000, 48 MHz XO (Standard), CMOS output, ±25 ppm stability, AEC-Q100 qualified, -40°C to +85°C, 6-SMD No Lead package, active production.

Microchip Technology DSC1121CI2-048.0000 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121CI2-048.0000 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)0.126\" 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

MEMS oscillator with automotive-grade reliability

Operates from a 2.25V to 3.6V supply, covering 2.5V and 3.3V logic rails without an external regulator. The Enable/Disable pin (tri-state output when pulled low) draws 22 mA max in disable mode, versus 35 mA max when active — useful for power-gating the clock tree in battery-backed or sleep-mode systems.

Housed in a 6-SMD, No Lead package measuring 3.20mm x 2.50mm with a seated height of 0.90mm — a compact footprint that matches standard 3.2x2.5 mm oscillator pads. Surface-mount assembly; the no-lead construction requires good solder-paste volume control on the bottom terminations to avoid opens or bridging.

Frequently asked questions

Can I replace a 48 MHz quartz crystal with this MEMS XO?

No — a passive crystal requires an external oscillator circuit (load caps, inverter). The DSC1121CI2-048.0000 is a complete XO that outputs a CMOS clock directly. The board must have a clock input pin, not a crystal input pair.

What is the closest pin-compatible alternative in the DSC1121 family?

Any DSC1121 variant with the same package (6-SMD, No Lead), supply range, and enable/disable function is footprint-compatible. The frequency is the differentiating spec — confirm your target frequency against the DSC1121 ordering code.