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Microchip Technology DSC1221DI3-148M5000T — Crystals & Oscillators

DSC1221DI3-148M5000T MEMS XO – Microchip, 148.5 MHz

MPNDSC1221DI3-148M5000T
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Microchip Technology DSC1221DI3-148M5000T, XO (Standard) MEMS oscillator, 148.5 MHz CMOS output, ±20 ppm frequency stability, AEC-Q100 qualified, 6-VDFN package.

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

Specifications

DSC1221DI3-148M5000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC12X1
MountingSurface Mount
Voltage2.5V ~ 3.3V
Current - supply27mA (Typ)
Current - supply (Disable)23mA (Typ)
Frequency148.5 MHz
Frequency stability±20ppm
Operating temperature-40°C~85°C
Size (Dimension)0.098\" L x 0.079\" W (2.50mm x 2.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN

Product details

148.5 MHz MEMS XO – AEC-Q100 and ±20 ppm stability

AEC-Q100 qualification means this oscillator has passed automotive-grade stress tests — suitable for under-hood or cabin-domain clock trees where vibration and thermal cycling are routine. The MEMS resonator replaces a quartz crystal, giving faster start-up and better shock resistance compared to a traditional crystal oscillator.

Supply voltage range and enable/disable function

Operates from a 2.5 V to 3.3 V supply, covering the common core rails for FPGAs, SoCs, and Ethernet PHYs — no extra regulator needed when the rail falls within that window. Built-in enable/disable pin lets the system gate the clock output without a separate load switch; disable current is 23 µA typical, useful for power-sensitive sleep modes.

Package and mounting – 6-VDFN 2.5 mm × 2.0 mm

Housed in a 6-VDFN package measuring 2.50 mm × 2.00 mm with a seated height of 0.90 mm — a compact footprint that fits tight board layouts common in automotive camera modules or portable instrumentation. Surface-mount assembly with standard reflow profiles; the small body reduces parasitic capacitance on the output trace compared to larger SMD packages.

Lifecycle – active production

The part is available for both new designs and production replenishment through independent distribution.

Frequently asked questions

Is the DSC1221DI3-148M5000T AEC-Q100 qualified?

Yes, it carries AEC-Q100 rating, meaning it has passed automotive-grade reliability stress tests including temperature cycling and ESD. Suitable for under-hood and cabin electronics where commercial-grade oscillators would not be acceptable.

Does the DSC1221DI3-148M5000T have an enable/disable function?

Yes, the enable/disable pin allows the output to be tri-stated. Typical disable current is 23 µA, useful for power gating the clock in low-power modes without an external load switch.

What package does the DSC1221DI3-148M5000T come in?

6-VDFN measuring 2.50 mm × 2.00 mm with a seated height of 0.90 mm. A compact surface-mount package suited to space-constrained boards.