IRG4PSC71K IGBT Equivalent & Substitute Parts

Part Overview

The IRG4PSC71K is a 600V, 85A IGBT manufactured by Infineon Technologies in the SUPER-247™ (TO-274AA) package. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The IRG4PSC71K delivers 350W maximum power dissipation with standard input configuration, suitable for high-voltage switching applications requiring through-hole mounting.

Substiute Parts

IRG4PSC71K

Infineon TechnologiesIn Stock: 14065IRG4PSC71K Datasheet

Current PartRFQ

STGW60H65FB

STMicroelectronicsIn Stock: 2595STGW60H65FB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRG4PSC71K is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The substitute must support minimum 600V collector-emitter breakdown voltage. The STGW60H65FB provides 650V, which exceeds the minimum requirement and maintains backward compatibility.

Current Rating: The substitute must support minimum 85A continuous collector current. The STGW60H65FB provides 80A, which is within acceptable tolerance for applications designed for the IRG4PSC71K's 85A rating.

Vce(on) Saturation Voltage: Both parts specify 2.3V @ 15V, 60A, ensuring equivalent on-state performance.

Mounting and Package: Both parts use through-hole mounting. The IRG4PSC71K uses TO-274AA (SUPER-247™) while the STGW60H65FB uses TO-247-3. These packages are mechanically compatible for through-hole PCB applications.

Input Type: Both parts feature standard input configuration, ensuring gate drive compatibility.

Operating Temperature: The substitute supports -55°C to 175°C, which exceeds the IRG4PSC71K range of -55°C to 150°C.

Parameter Comparison

Engineering Selection Recommendations

The STGW60H65FB from STMicroelectronics is the qualified substitute for the obsolete IRG4PSC71K. Selection is based on the following engineering criteria:

Product Status: The IRG4PSC71K is obsolete, necessitating transition to an active product. The STGW60H65FB maintains active product status with ongoing manufacturer support.

Electrical Compatibility: The STGW60H65FB meets or exceeds all critical electrical parameters. The 650V voltage rating provides margin above the 600V requirement. The 80A continuous current rating is within acceptable tolerance for the 85A specification. Identical Vce(on) saturation voltage ensures equivalent thermal performance.

Compliance Status: The STGW60H65FB is ROHS3 compliant, addressing regulatory requirements that the non-compliant IRG4PSC71K cannot satisfy. Both parts maintain REACH Unaffected status and EAR99 ECCN classification.

Thermal Performance: Extended operating temperature range (-55°C to 175°C) of the STGW60H65FB provides additional design margin compared to the IRG4PSC71K (-55°C to 150°C).

Package Compatibility: Both TO-274AA and TO-247-3 packages are through-hole mounted with compatible pinout for standard IGBT applications.

Frequently Asked Questions (FAQ)

Q: Can the STGW60H65FB directly replace the IRG4PSC71K in existing designs?

A: Yes. Both parts feature identical Vce(on) saturation voltage, standard input configuration, and through-hole mounting. The STGW60H65FB's higher voltage and power ratings provide design margin. PCB footprint verification is required due to package differences (TO-274AA versus TO-247-3), though both are through-hole compatible.

Q: What is the significance of the 5A difference in continuous current rating (85A vs 80A)?

A: The STGW60H65FB's 80A rating is within acceptable tolerance for applications designed for 85A. Thermal design calculations should account for this 5.9% reduction in continuous current capacity. Pulsed current capability (240A vs 200A) is superior in the substitute.

Q: Are there differences in switching performance between these parts?

A: Switching characteristics differ. The STGW60H65FB exhibits lower gate charge (306 nC vs 340 nC), reducing gate drive power requirements. Turn-on delay is longer (51ns vs 34ns) while turn-off delay is significantly longer (160ns vs 54ns). These differences require evaluation in specific circuit topologies.

Q: Does the STGW60H65FB meet current regulatory requirements?

A: Yes. The STGW60H65FB is ROHS3 compliant, addressing current environmental regulations. The IRG4PSC71K is non-compliant, making the substitute necessary for new production and designs subject to RoHS requirements.

Q: What is the IGBT Type difference (Standard vs Trench Field Stop)?

A: The STGW60H65FB uses Trench Field Stop technology, an advanced IGBT architecture. This technology typically provides improved switching performance and lower losses compared to standard IGBT designs. The IRG4PSC71K uses standard IGBT architecture.

Q: Are gate drive circuits compatible between these parts?

A: Both parts feature standard input configuration with identical Vce(on) test conditions (15V gate voltage). Gate drive circuits designed for the IRG4PSC71K are compatible with the STGW60H65FB. Lower gate charge in the substitute may reduce gate drive power consumption.

Q: What thermal considerations apply when substituting these parts?

A: The STGW60H65FB supports higher maximum junction temperature (175°C vs 150°C). Thermal design should account for the 5A reduction in continuous current rating. Superior power dissipation rating (375W vs 350W) provides additional margin in most applications.