Skip to main content
Log in
Microchip Technology DSC1121AI1-156.2500T — Crystals & Oscillators

DSC1121AI1-156.2500T MEMS XO 156.25 MHz CMOS AEC-Q100

MPNDSC1121AI1-156.2500T
Active

Microchip Technology DSC1121AI1-156.2500T, XO (Standard) MEMS oscillator, 156.25 MHz CMOS output, ±50 ppm stability, 2.25V–3.6V supply, AEC-Q100, -40 to 85°C, 6-SMD package, Tape & Reel.

Microchip Technology DSC1121AI1-156.2500T datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AI1-156.2500T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency156.25 MHz
Frequency stability±50ppm
Operating temperature-40°C~85°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead Exposed Pad

Product details

The DSC1121AI1-156.2500T is a MEMS-based XO (Standard) oscillator from Microchip's DSC1121 series, delivering a fixed 156.25 MHz CMOS output with ±50 ppm frequency stability. Rated AEC-Q100, it operates across -40°C to 85°C and accepts a wide supply range of 2.25V to 3.6V, drawing a maximum of 35 mA from the rail.

MEMS vs quartz — the AEC-Q100 difference

For a BOM line that previously used a quartz can oscillator at 156.25 MHz, the DSC1121AI1-156.2500T is a drop-in CMOS-output replacement in a 7.0 mm × 5.0 mm 6-SMD footprint, with no external load capacitors needed.

Frequently asked questions

Is the DSC1121AI1-156.2500T AEC-Q100 qualified?

Yes, it carries AEC-Q100 rating, making it suitable for automotive applications that require the temperature and reliability screening of that standard.

Can this MEMS oscillator replace a standard quartz oscillator at 156.25 MHz?

Yes — the DSC1121AI1-156.2500T outputs CMOS at 156.25 MHz and fits the same 7.0 mm × 5.0 mm 6-SMD footprint as many quartz oscillators. No external load capacitors are needed, and the Enable/Disable pin matches the function on most quartz XOs.