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Microchip Technology DSC400-0202Q0108KI2 — Crystals & Oscillators

DSC400-0202Q0108KI2 MEMS XO, LVPECL, 167.1875/173.28125 MHz

MPNDSC400-0202Q0108KI2
Active

Microchip DSC400 series MEMS XO (Standard), dual LVPECL outputs 167.1875 MHz and 173.28125 MHz, ±25 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 20-VFQFN exposed pad, active production.

Microchip Technology DSC400-0202Q0108KI2 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC400-0202Q0108KI2 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC400
Voltage2.25V ~ 3.6V
Frequency stability±25ppm
Frequency - output 1167.1875MHz
Frequency - output 2173.28125MHz
Operating temperature-40°C~85°C
Height0.035\" (0.90mm)
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
OutputLVPECL
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case20-VFQFN Exposed Pad

Product details

Dual LVPECL clock source for high-speed SerDes

The DSC400-0202Q0108KI2 is a MEMS-based XO that delivers two independent LVPECL output frequencies: 167.1875 MHz and 173.28125 MHz from a single 20-VFQFN package. This eliminates a separate oscillator for each clock domain in FPGA or SerDes reference trees. Supply voltage spans 2.25V to 3.6V, so the same part works across 2.5V and 3.3V rails without a level translator on the output.

±25 ppm stability over industrial temperature

For a 167.1875 MHz carrier, that is roughly ±4.2 kHz of total drift — tight enough for most 10GbE and PCIe Gen3 reference clocks without external VCXO tuning.

Active lifecycle, no end-of-life pressure

Microchip lists the DSC400-0202Q0108KI2 as Active. No pin-compatible second source is documented; the DSC400 family is the only drop-in path.

20-VFQFN exposed-pad layout note

The 20-VFQFN Exposed Pad package measures 5.00 mm x 3.20 mm with a 0.90 mm seated height.

Frequently asked questions

Where can I buy DSC400-0202Q0108KI2 and what is the lead time?

The DSC400-0202Q0108KI2 is an active Microchip part. We source it through independent distribution and quote to order against your BOM quantity. Availability and current pricing are confirmed at RFQ time — no stock-holding claim is made here.

Does DSC400-0202Q0108KI2 have a pin-compatible alternative or replacement?

No official second-source or direct replacement is documented for this specific order code. The DSC400 family from Microchip is the only drop-in path. If you need a functional equivalent with different frequencies or output logic, the DSC400 series offers other variants, but pin compatibility must be verified against the datasheet.

What is the output type and frequency stability of the DSC400-0202Q0108KI2?

Output is LVPECL. Frequency stability is ±25 ppm over the -40°C to 85°C operating range. The two output frequencies are 167.1875 MHz and 173.28125 MHz.