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Q03UDECPU — Mitsubishi Electric MELSEC A / AnS, FX2N and Q-series CPU

Phase-out  · 2026  · Replacement: Q03UDVCPU

Available to source — typically 3-5 working days to Ireland, 3-6 to the EU, 3-6 to the UK. Tested, with a 12-month warranty.

MELSEC-Q Universal model CPU with built-in Ethernet.

Key specifications

SeriesUniversal model QCPU

What it is and where it's used

The Q03UDECPU is a Mitsubishi Electric CPU from the MELSEC A / AnS, FX2N and Q-series range. Typical applications: Q-series machine and process control. The manufacturer is phasing this part out, so supply from new is getting harder.

What to check before ordering

  • Replacement is not necessarily 100% compatible; check program and network settings.
  • Complete model name including any suffix (for example -ES/UL)
  • Series and base-unit type for modular systems
  • Battery, memory cassette and extension cable requirements

If you are unsure, send us a photo of the label on the existing unit with your request and we will check it against the part number.

Condition (new surplus, refurbished or used), warranty and delivery time are confirmed on your quote. Sparesure is independent and not an authorised distributor of Mitsubishi Electric. Independence notice.

Request a quote

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Other parts in the MELSEC A / AnS, FX2N and Q-series range

Part numberTypeStatus
A1S61PNpower supplyDiscontinued
A1SJ61BT11communication moduleDiscontinued
Q06UDHCPUCPUDiscontinued
A1SJ71AP21-S3communication moduleDiscontinued
FX2N-48MR-ES/ULcontrollerDiscontinued
A1SJ-56DRI/O moduleDiscontinued
A1SY40I/O moduleDiscontinued
A1SY41I/O moduleDiscontinued

All MELSEC A / AnS, FX2N and Q-series parts →