Mitsubishi Electric Power Semiconductor Modules

Mitsubishi power modules are catalogued here as one semiconductor line covering the IGBT modules used in drive and converter power stages. The family holds 32 catalogued part numbers, all classified as IGBT Modules.

Series in this family

• CM Series IGBT Power Modules — 32 catalogued parts across the CM1, CM2, CM3 and CM4 type-code groups.
• IGBT & Power Modules — a broader legacy grouping kept for reference type codes such as CM75DY-24NF and CM900DU-24NF; no parts are catalogued in it at present.

Mitsubishi type codes carry the current and voltage class in the designation itself, so a module must be matched on the complete code printed on the package. Open the CM series above for the catalogued list, or send the full type code with a quote request if the module you need is not shown.

Common Faults

• Capacitor degradation after 7–10 years of service
• Communication errors after firmware drift
• Input/output channel failure from over-voltage events
• Cooling fan failure causing thermal shutdown
• Connector wear in high-vibration installations

Troubleshooting

1. Confirm supply voltage and grounding
2. Inspect diagnostic LEDs and fault codes
3. Verify firmware/configuration matches the application
4. Swap with a known-good unit to isolate the fault
5. Check field wiring and termination

Replacement Options

• Direct OEM replacement (preferred)
• Refurbished OEM unit (cost-effective)
• Compatible cross from the same manufacturer's current catalog
• Equivalent from an alternative manufacturer (engineering review required)

Migration Path

When migrating away from discontinued units, plan for: firmware compatibility, wiring changes, software/configuration migration, spare-parts stock, and field commissioning. Palm Parts Solution can supply both the current generation and stock of the legacy unit while you plan the migration.

Compatibility

Units in this family are compatible with the manufacturer's standard control architecture, communication protocols (where applicable), and accessory ecosystem. Always cross-reference the exact catalog number, firmware revision, and hardware series before installation.

Frequently Ordered

Customers ordering from this family frequently pair the unit with matching cables, terminal blocks, mounting kits, and surge protection. Contact our team for a complete BOM review.