Mitsubishi J3-C10 BC386A609G53 MR-J3 Servo CPU Board

The Mitsubishi J3-C10 is an OEM CPU/control PCB for MELSERVO-J3 servo amplifiers. Mitsubishi Electric's official parts data identifies material 260182 as the MR-J3-350A4 CPU Board J3-C10. The photographed REACO board carries PCB number BC386A609G53. This listing covers the circuit board only, not a complete servo amplifier.

CPU Control and Replacement Function

Installed inside the host MR-J3 amplifier, J3-C10 contains the processor and low-voltage control/interface circuitry used for servo command processing, feedback handling, communication and diagnostics. It is intended for board-level replacement when qualified troubleshooting identifies the CPU PCB as faulty. It does not replace the amplifier's power board or power-stage components.

Verified Application and Exact-Match Guidance

• Servo family: Mitsubishi MELSERVO-J3 / MR-J3
• Officially verified host: MR-J3-350A4, 3.5 kW, 400 V, generic-interface servo amplifier
• Mitsubishi material reference: 260182 for the verified MR-J3-350A4 application
• Photographed PCB number: BC386A609G53

J3-C10 is not automatically universal across every MR-J3-A, MR-J3-B, MR-J3-T, capacity or voltage version. Match the complete amplifier model, J3-C10 marking, BC386A609G53 number, hardware revision, firmware label and connector layout. Similar codes such as BC386A609G52 require separate confirmation. J3-C10 also differs from J3-C70, which belongs to the MDS-D-SVJ3-NA drive architecture.

Product Specifications

REACO Testing, Support and Packing

Every supplied J3-C10 is 100% tested before dispatch, with a test video available. REACO CNC provides free model matching, technical support and warranty coverage. ESD and impact-resistant packing protects the board during international shipment. Related components are grouped under Mitsubishi CNC and servo PCBs, with complete units under Mitsubishi servo drives.