IRG4PSH71UD IGBT Equivalent & Substitute Parts

Part Overview

The IRG4PSH71UD is a 1200V, 99A IGBT manufactured by Infineon Technologies in the SUPER-247™ (TO-274AA) package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The part delivers 350W maximum power dissipation with standard input configuration suitable for high-voltage switching applications.

Substiute Parts

IRG4PSH71UD

Infineon TechnologiesIn Stock: 1411IRG4PSH71UD Datasheet

Current PartRFQ

FGH40T120SMD

onsemiIn Stock: 19793FGH40T120SMD Datasheet

MFR RecommendedRFQ

FGH40T120SMD-F155

onsemiIn Stock: 15568FGH40T120SMD-F155 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRG4PSH71UD are identified based on the following critical electrical and mechanical parameters:

Voltage Rating: Both substitute parts maintain the 1200V collector-emitter breakdown voltage, ensuring compatibility with the original design voltage specification.

Current Rating: The substitute parts (FGH40T120SMD and FGH40T120SMD-F155) are rated at 80A continuous collector current, which is lower than the original 99A rating. These substitutes are applicable in designs where the actual operating current does not exceed 80A.

Package Compatibility: The substitute parts use TO-247-3 package, which differs from the original SUPER-247™ (TO-274AA) package. Both are through-hole mounting configurations with similar footprint compatibility in most applications.

Input Type: All parts maintain standard input configuration.

Thermal Operating Range: The substitute parts extend the upper operating temperature to 175°C compared to the original 150°C, providing improved thermal margin.

Product Status: The substitute parts are active products from onsemi, addressing the obsolescence of the original Infineon component.

Compliance: The substitute parts are ROHS3 compliant, whereas the original part is RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

Obsolescence Mitigation: The IRG4PSH71UD is classified as obsolete. The FGH40T120SMD and FGH40T120SMD-F155 are active products from onsemi, providing long-term availability and supply chain stability.

Compliance Upgrade: Both substitute parts are ROHS3 compliant, addressing regulatory requirements that may not be met by the original RoHS non-compliant component.

Current Rating Consideration: Substitution is valid only when the design operating current does not exceed 80A continuous. Applications requiring the full 99A rating of the original part require alternative solutions.

Thermal Performance: The extended operating temperature range to 175°C in substitute parts provides additional thermal margin compared to the original 150°C specification.

Switching Characteristics: The substitute parts exhibit lower switching energy (2.7mJ on, 1.1mJ off versus 8.8mJ on, 9.4mJ off) and faster reverse recovery time (65ns versus 110ns), resulting in improved switching efficiency.

Package Transition: The TO-247-3 package of substitute parts differs from the SUPER-247™ (TO-274AA) package. PCB layout modifications may be required to accommodate the different package footprint.

Frequently Asked Questions (FAQ)

Q: Can FGH40T120SMD and FGH40T120SMD-F155 be used interchangeably with IRG4PSH71UD?

A: Both onsemi parts are functionally equivalent substitutes for the IRG4PSH71UD in applications where the continuous collector current does not exceed 80A. The 1200V voltage rating, standard input configuration, and through-hole mounting are compatible. However, PCB layout modifications are necessary due to the package change from SUPER-247™ (TO-274AA) to TO-247-3.

Q: What is the difference between FGH40T120SMD and FGH40T120SMD-F155?

A: Both parts are identical in electrical specifications and performance characteristics. The "-F155" suffix indicates a specific manufacturing or distribution variant. Both are active products with equivalent availability and compliance status.

Q: Are there current rating limitations when substituting?

A: Yes. The substitute parts are rated at 80A continuous collector current, compared to 99A for the original part. Designs operating above 80A continuous current require alternative components.

Q: What are the package compatibility implications?

A: The original SUPER-247™ (TO-274AA) package differs from the TO-247-3 package used by substitute parts. While both are through-hole configurations, PCB footprint modifications are required. Pin assignments and thermal characteristics differ and must be verified during design transition.

Q: Do the substitute parts meet current regulatory requirements?

A: Yes. Both FGH40T120SMD and FGH40T120SMD-F155 are ROHS3 compliant and REACH unaffected, meeting current regulatory standards. The original IRG4PSH71UD is RoHS non-compliant.

Q: How do switching characteristics compare?

A: The substitute parts exhibit significantly lower switching energy and faster reverse recovery time, resulting in reduced switching losses and improved efficiency. On-state switching energy is reduced from 8.8mJ to 2.7mJ, and off-state energy from 9.4mJ to 1.1mJ. Reverse recovery time improves from 110ns to 65ns.

Q: What is the thermal operating range difference?

A: The substitute parts extend the maximum junction temperature from 150°C to 175°C, providing 25°C additional thermal margin for high-temperature applications.