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Microchip Technology DSC1121BI5-045.1854T — Crystals & Oscillators

DSC1121BI5-045.1854T MEMS XO 45.1854 MHz CMOS – Microchip

MPNDSC1121BI5-045.1854T
Active

Microchip DSC1121 series XO (Standard), 45.1854 MHz, CMOS output, 2.25 V to 3.6 V supply, -40°C to +85°C, ±10 ppm APR, 6-VDFN package.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121BI5-045.1854T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency45.1854 MHz
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)
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN
Absolute pull range±10ppm

Product details

45.1854 MHz MEMS oscillator for clock-tree timing

The DSC1121BI5-045.1854T: The MEMS resonator eliminates the quartz crystal's mechanical failure modes — no start-up reliability concerns from cracked blanks or contamination — and the ±10 ppm absolute pull range (APR) provides enough margin for spread-spectrum clocking or frequency trimming without an external VCXO.

Frequently asked questions

What is the price and availability of DSC1121BI5-045.1854T?

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Is DSC1121BI5-045.1854T a direct replacement for DSC1121AI5-045.1854T?

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What is the operating voltage range of DSC1121BI5-045.1854T?

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What is the datasheet for DSC1121BI5-045.1854T?

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