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Microchip Technology DSC6121CI2A-00EST — Crystals & Oscillators

Microchip DSC6121CI2A-00EST MEMS XO, 48/50 MHz, Obsolete

MPNDSC6121CI2A-00EST
Obsolete

Microchip Technology DSC61XX series MEMS XO (Standard), 48 MHz & 50 MHz CMOS outputs, ±25 ppm stability, 1.71V–3.63V supply, -40°C to +85°C, 4-VDFN package.

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

Specifications

DSC6121CI2A-00EST specifications
ParameterValue
TypeXO (Standard)
SeriesDSC61XX
Supply voltage1.71V ~ 3.63V
Current - supply3mA (Typ)
Frequency stability±25ppm
Frequency - output 148MHz, 50MHz
Operating temperature-40°C~85°C
Height0.035\" (0.89mm)
Size (Dimension)0.126\" L x 0.098\" W (3.20mm x 2.50mm)
OutputCMOS
PackageTape & Reel (TR)
Base resonatorMEMS
Case4-VDFN

Product details

Dual-frequency MEMS oscillator — what the ratings mean

The DSC6121CI2A-00EST: This eliminates a separate crystal or oscillator for each clock domain — useful for designs that need a 48 MHz USB or Ethernet clock alongside a 50 MHz reference for the processor or FPGA. Typical current draw is 3 mA max, making it suitable for battery-powered or thermally constrained designs where every milliwatt counts.

Frequently asked questions

Where can I buy DSC6121CI2A-00EST and how do I get a price?

We source the DSC6121CI2A-00EST to order against your BOM quantity.

What is the closest pin-compatible alternative to DSC6121CI2A-00EST in this Crystals & Oscillators family?

For a functional replacement, consider a different MEMS XO from the DSC61XX family with the same package and output configuration — but verify the dual-frequency assignment and supply voltage range against your design.