M3P75A-140 Equivalent & Substitute Parts

Part Overview

The M3P75A-140 is a three-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 1.4 kV peak reverse voltage and 75 A average rectified current. This component is designed for chassis mount applications in industrial power conversion systems. The part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where legacy specifications must be maintained.

Substiute Parts

M3P75A-140

GeneSiC SemiconductorIn Stock: 765M3P75A-140 Datasheet

Current PartRFQ

VUO82-14NO7

IXYSIn Stock: 900461VUO82-14NO7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M3P75A-140 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Diode Type: Three Phase
• Technology: Standard
• Voltage - Peak Reverse (Max): 1.4 kV
• Mounting Type: Chassis Mount
• Operating Temperature Range: -40°C ~ 150°C (TJ)

Allowable Variation Parameters:

• Current - Average Rectified (Io): Equal to or greater than 75 A
• Voltage - Forward (Vf): May vary within application thermal limits
• Current - Reverse Leakage: May vary within application requirements
• Package / Case: Alternative chassis mount packages acceptable if mechanical fit is verified

The VUO82-14NO7 from IXYS meets all mandatory matching parameters and exceeds the current rating requirement at 88 A, making it a valid electrical substitute.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The M3P75A-140 is obsolete. The VUO82-14NO7 is active and in production, with 900,400 pieces available in inventory, ensuring long-term supply continuity.

Compliance and Certification: The VUO82-14NO7 carries RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Both parts share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Electrical Compatibility: The VUO82-14NO7 maintains identical voltage ratings and temperature operating range. The higher current rating (88 A vs. 75 A) and increased forward voltage drop (1.6 V vs. 1.15 V) must be evaluated within the specific application thermal and power dissipation budget. The elevated reverse leakage current (300 µA vs. 10 µA) requires verification against application leakage specifications.

Mechanical Compatibility: Package transition from 5-SMD Module to PWS-D requires mechanical fit verification in the chassis mount assembly. Dimensional and mounting hole compatibility must be confirmed before implementation.

Frequently Asked Questions (FAQ)

Q: Can the VUO82-14NO7 directly replace the M3P75A-140 without circuit modifications?

A: Electrical substitution is valid for voltage and current ratings. However, the higher forward voltage drop and reverse leakage current may affect circuit performance. Thermal analysis and leakage current verification are required for the specific application. Mechanical package differences (5-SMD Module vs. PWS-D) require mounting assessment.

Q: What is the significance of the current rating difference (75 A vs. 88 A)?

A: The VUO82-14NO7 exceeds the minimum current requirement, providing design margin. This does not create incompatibility; however, thermal dissipation characteristics may differ due to the higher forward voltage drop at rated current.

Q: Are there compliance differences between these parts?

A: Both parts share identical ECCN and HTSUS classifications. The VUO82-14NO7 includes RoHS3 compliance and REACH unaffected status, meeting modern regulatory standards. The M3P75A-140 status is not specified for these certifications.

Q: How do the reverse leakage specifications affect substitution?

A: The VUO82-14NO7 exhibits 30 times higher reverse leakage current (300 µA vs. 10 µA at 1400 V). Applications sensitive to leakage current, such as high-impedance circuits or precision measurement systems, require evaluation to confirm acceptability.

Q: What package considerations apply to this substitution?

A: The M3P75A-140 uses a 5-SMD Module package, while the VUO82-14NO7 uses PWS-D packaging. Mechanical fit, mounting hole alignment, and thermal interface compatibility must be verified before implementation in existing assemblies.