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Microchip Technology DSC1001BI2-026.9730 — Crystals & Oscillators

DSC1001BI2-026.9730 MEMS XO – 26.973 MHz, AEC-Q100, ±25 ppm

MPNDSC1001BI2-026.9730
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Microchip DSC1001BI2-026.9730, XO (Standard) MEMS oscillator, 26.973 MHz CMOS output, ±25 ppm frequency stability, -40°C to 85°C, AEC-Q100, 4-SMD package.

Microchip Technology DSC1001BI2-026.9730 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1001BI2-026.9730 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1001
MountingSurface Mount
Supply voltage1.8V ~ 3.3V
Current - supply6.3mA
Current - supply (Disable)15µA
Frequency26.973 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
PackageTube
RatingsAEC-Q100
FunctionStandby (Power Down)
Base resonatorMEMS
Case4-SMD, No Lead

Product details

That matters for designs that see assembly reflow, potting, or high-vibration environments.

Standby mode and supply flexibility

The operating supply range spans 1.8V to 3.3V — one BOM line covers 1.8V, 2.5V, and 3.3V logic domains without a separate regulator.

Housed in a 5.00 mm × 3.20 mm 4-SMD, No Lead package with a seated height of 0.90 mm. The no-lead construction reduces parasitic inductance compared to a gull-wing lead — cleaner clock edges into the load capacitance. The 0.197" × 0.126" footprint is common across the DSC1001 series, so a layout swap between frequency variants is a BOM change, not a board spin.

Frequently asked questions

What is the frequency stability of DSC1001BI2-026.9730?

This includes initial tolerance, temperature drift, and aging effects — tight enough for most MCU clock and serial communication applications without external trimming.

Does the DSC1001BI2-026.9730 support standby mode?

Yes. The Standby (Power Down) function disables the output and reduces supply current to 15 µA max. The oscillator resumes normal operation when the standby pin is de-asserted; no external load switch or enable circuit is needed.

Is DSC1001BI2-026.9730 AEC-Q100 qualified?

Yes, it carries an AEC-Q100 rating. This qualifies the part for automotive applications requiring PPAP and reliability stress testing per the AEC-Q100 standard — under-hood, cabin, or chassis domains.

Is DSC1001BI2-026.9730 compatible with a 2.5V supply?

Yes. 2.5V falls within the 1.8V to 3.3V supply range. No external level shifting or regulation is required.

What is the closest pin-compatible alternative in the DSC1001 family?

The DSC1001 series shares the same 4-SMD package, pinout, and supply range across all frequency variants. To change frequency, replace the order code suffix while keeping the same PCB footprint — no board layout change is required.