IRG4PSH71UDPBF IGBT Equivalent & Substitute Parts

Part Overview

The IRG4PSH71UDPBF 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 functionally equivalent alternatives for new designs and ongoing production requirements. The part operates at maximum junction temperatures from -55°C to 150°C and delivers 350W maximum power dissipation. Substitute parts must maintain electrical compatibility across voltage, current, and thermal operating ranges while accommodating package form factor considerations.

Key Parameters

Parameter	Value	Unit
Voltage - Collector Emitter Breakdown (Max)	1200	V
Current - Collector (Ic) (Max)	99	A
Current - Collector Pulsed (Icm)	200	A
Power - Max	350	W
Vce(on) (Max) @ Vge, Ic	2.7V @ 15V, 70A	V
Gate Charge	380	nC
Switching Energy (on/off)	8.8 / 9.4	mJ
Td (on/off) @ 25°C	46 / 250	ns
Reverse Recovery Time (trr)	110	ns
Operating Temperature Range (TJ)	-55 to 150	°C
Mounting Type	Through Hole	-
Package / Case	TO-274AA	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the IRG4PSH71UDPBF is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a Collector-Emitter breakdown voltage of 1200V to ensure safe operation within the original design envelope.

Current Rating: Substitute parts must support continuous collector current (Ic) at or above 99A. Pulsed current (Icm) capability must accommodate transient load conditions.

Power Dissipation: Maximum power rating must equal or exceed 350W to maintain thermal performance margins.

Package Compatibility: The original SUPER-247™ (TO-274AA) package must be matched or replaced with mechanically and electrically compatible through-hole packages (TO-247-3 variants acceptable with PCB layout verification).

Input Type: Standard input configuration required for gate drive compatibility.

Compliance: RoHS3 compliance and REACH unaffected status required for regulatory alignment.

The three identified substitute parts meet these criteria with variations in switching characteristics and thermal operating ranges that do not compromise functional equivalence within the specified application parameters.

Parameter Comparison

Parameter	IRG4PSH71UDPBF (Main)	FGH40T120SMD	FGH40T120SMD-F155	IXYH50N120C3
Manufacturer	Infineon Technologies	onsemi	onsemi	IXYS
Voltage - Collector Emitter Breakdown (Max)	1200 V	1200 V	1200 V	1200 V
Current - Collector (Ic) (Max)	99 A	80 A	80 A	100 A
Current - Collector Pulsed (Icm)	200 A	160 A	160 A	240 A
Power - Max	350 W	555 W	555 W	750 W
Vce(on) (Max) @ Vge, Ic	2.7V @ 15V, 70A	2.4V @ 15V, 40A	2.4V @ 15V, 40A	3.5V @ 15V, 50A
Gate Charge	380 nC	370 nC	370 nC	142 nC
Switching Energy (on/off)	8.8 / 9.4 mJ	2.7 / 1.1 mJ	2.7 / 1.1 mJ	3 / 1 mJ
Td (on/off) @ 25°C	46 / 250 ns	40 / 475 ns	40 / 475 ns	28 / 133 ns
Reverse Recovery Time (trr)	110 ns	65 ns	65 ns	Not specified
Operating Temperature Range (TJ)	-55 to 150 °C	-55 to 175 °C	-55 to 175 °C	-55 to 175 °C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-274AA	TO-247-3	TO-247-3	TO-247-3
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

FGH40T120SMD and FGH40T120SMD-F155 (onsemi):

These parts are electrically equivalent with identical specifications. Both are active products with extended operating temperature ranges (-55°C to 175°C) compared to the IRG4PSH71UDPBF. Continuous collector current is rated at 80A, which is 19A below the original specification. These parts are suitable for applications where the 99A continuous rating is not fully utilized. The TO-247-3 package requires PCB layout modification from the original SUPER-247™ footprint. Switching energy is significantly reduced (2.7mJ on, 1.1mJ off), resulting in lower gate drive losses. Turn-off delay is extended to 475ns compared to the original 250ns.

IXYH50N120C3 (IXYS):

This part maintains 100A continuous collector current, closely matching the original 99A specification. Maximum power rating of 750W exceeds the original 350W. Operating temperature range extends to 175°C. Gate charge is substantially lower at 142nC, reducing gate drive power requirements. Switching energy is lower across both on and off transitions. Turn-on delay is faster at 28ns; turn-off delay is faster at 133ns. The TO-247-3 package requires PCB layout modification. This part is classified as active with full availability.

All substitute parts maintain 1200V voltage rating, RoHS3 compliance, and REACH unaffected status. Package transition from SUPER-247™ (TO-274AA) to TO-247-3 requires mechanical and electrical verification in the target application.

Frequently Asked Questions (FAQ)

Q: Can FGH40T120SMD or FGH40T120SMD-F155 be used as direct replacements for IRG4PSH71UDPBF?

A: These parts meet the 1200V voltage requirement and standard input type. However, continuous collector current is 80A versus the original 99A. Substitution is valid only if the application does not require the full 99A continuous rating. The TO-247-3 package differs from SUPER-247™ (TO-274AA), requiring PCB layout verification for mechanical fit and thermal performance.

Q: What are the differences between FGH40T120SMD and FGH40T120SMD-F155?

A: Both parts have identical electrical specifications. The -F155 suffix indicates a specific manufacturing date code or qualification level. Functionally, they are equivalent for substitution purposes.

Q: Is IXYH50N120C3 a better choice than the onsemi alternatives?

A: IXYH50N120C3 maintains 100A continuous current, matching the original 99A specification more closely. Switching energy is lower, and turn-on/turn-off delays are faster. However, Vce(on) is higher at 3.5V versus 2.4V for the onsemi parts. Selection depends on whether the application prioritizes current rating accuracy or conduction loss minimization. All three parts are active products with full availability.

Q: What is the impact of package change from SUPER-247™ to TO-247-3?

A: Both packages are through-hole, 3-pin configurations with similar thermal and electrical characteristics. However, pin spacing and mounting hole positions differ. PCB layout modification is required. Thermal performance should be verified through thermal simulation or testing, as package geometry affects heat dissipation pathways.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. FGH40T120SMD, FGH40T120SMD-F155, and IXYH50N120C3 are all RoHS3 compliant and REACH unaffected, matching the compliance status of the original IRG4PSH71UDPBF.

Q: What is the significance of the extended operating temperature range in substitute parts?

A: Substitute parts operate to 175°C junction temperature versus 150°C for the original. This provides additional thermal margin in applications approaching maximum junction temperature limits. However, it does not change the substitution decision if the original design operates within -55°C to 150°C.

Q: Can gate drive circuits designed for IRG4PSH71UDPBF be used with substitute parts?

A: Gate charge values differ across parts (380nC original, 370nC for onsemi parts, 142nC for IXYS). Gate drive circuits must be verified for compatibility with the selected substitute. Lower gate charge (IXYH50N120C3) may reduce gate drive power but requires confirmation that drive voltage and current ratings are adequate.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message