IRGP4266PBF IGBT Equivalent & Substitute Parts

Part Overview

The IRGP4266PBF is a 650V 140A 450W IGBT manufactured by Infineon Technologies in TO-247AC package configuration for through-hole mounting applications. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for new designs and ongoing production requirements. The part operates across an industrial temperature range of -40°C to 175°C junction temperature and features standard input gate drive characteristics suitable for power conversion and motor control applications.

Key Parameters

Parameter	Value	Unit
Voltage - Collector Emitter Breakdown (Max)	650	V
Current - Collector (Ic) (Max)	140	A
Current - Collector Pulsed (Icm)	300	A
Power - Max	450	W
Vce(on) (Max) @ Vge, Ic	2.1V @ 15V, 75A	V
Switching Energy (On)	3.2	mJ
Switching Energy (Off)	1.7	mJ
Gate Charge	210	nC
Td (on/off) @ 25°C	80ns/200ns	ns
Operating Temperature Range	-40 to 175	°C (TJ)
Mounting Type	Through Hole	-
Package / Case	TO-247-3	-
Input Type	Standard	-

Substitute Part Grouping Explanation

Substitution of the IRGP4266PBF is determined by alignment of the following critical electrical and mechanical parameters:

Voltage Rating: Substitute parts must maintain the 650V collector-emitter breakdown voltage or operate at equivalent voltage class. Parts rated at 600V represent a lower voltage class and are acceptable only where system voltage does not exceed 600V.

Current Rating: The 140A continuous collector current of the IRGP4266PBF establishes the minimum acceptable current rating for direct substitution. Substitute parts rated at 120A or higher satisfy this requirement.

Power Dissipation: Maximum power rating of 450W defines thermal performance expectations. Substitute parts with power ratings between 375W and 469W fall within acceptable operating parameters.

Package Configuration: All substitute parts utilize TO-247-3 through-hole package, ensuring mechanical and thermal interface compatibility with existing PCB designs and heatsink mounting arrangements.

Gate Charge and Switching Characteristics: Gate charge values between 210nC and 578nC and switching delay times (Td on/off) within the range of 32ns to 330ns maintain compatibility with standard gate drive circuits rated for 15V gate voltage.

Operating Temperature: All parts maintain the -40°C to 175°C junction temperature range, with some substitutes extending the lower temperature limit to -55°C.

Input Type: All parts feature standard input gate drive configuration, compatible with conventional PWM gate driver circuits.

Parameter Comparison

Parameter	IRGP4266PBF	IGW75N60TFKSA1	STGW80H65DFB	FGH75T65UPD-F085
Manufacturer	Infineon Technologies	Infineon Technologies	STMicroelectronics	onsemi
Voltage - Collector Emitter Breakdown (Max)	650 V	600 V	650 V	650 V
Current - Collector (Ic) (Max)	140 A	150 A	120 A	150 A
Current - Collector Pulsed (Icm)	300 A	225 A	240 A	225 A
Power - Max	450 W	428 W	469 W	375 W
Vce(on) (Max) @ Vge, Ic	2.1V @ 15V, 75A	2V @ 15V, 75A	2V @ 15V, 80A	2.3V @ 15V, 75A
Switching Energy (On)	3.2 mJ	4.5 mJ	2.1 mJ	2.85 mJ
Switching Energy (Off)	1.7 mJ	Not specified	1.5 mJ	1.2 mJ
Gate Charge	210 nC	470 nC	414 nC	578 nC
Td (on/off) @ 25°C	80ns/200ns	33ns/330ns	84ns/280ns	32ns/166ns
Operating Temperature Range	-40 to 175°C (TJ)	-40 to 175°C (TJ)	-55 to 175°C (TJ)	-55 to 175°C (TJ)
IGBT Type	Standard	Trench Field Stop	Trench Field Stop	Trench Field Stop
Package / Case	TO-247-3	TO-247-3	TO-247-3	TO-247-3
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Not For New Designs
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

IGW75N60TFKSA1 (Infineon Technologies - MFR Recommended)

This part is recommended as the primary substitute for the IRGP4266PBF. The IGW75N60TFKSA1 is an active product utilizing Trench Field Stop technology, offering improved switching performance with lower on-state energy (4.5mJ) compared to the original part. The 600V voltage rating is suitable for applications where system voltage does not exceed 600V. The 150A continuous current rating exceeds the original 140A specification. RoHS3 compliance and unlimited moisture sensitivity level (MSL 1) support modern manufacturing and supply chain requirements. Infineon manufacturer continuity provides design support consistency.

STGW80H65DFB (STMicroelectronics - Direct Manufacturer)

This part maintains the 650V voltage rating of the original IRGP4266PBF, providing direct voltage class compatibility. The STMicroelectronics STGW80H65DFB is an active product with Trench Field Stop technology and superior switching energy characteristics (2.1mJ on, 1.5mJ off). The 120A continuous current rating is lower than the original 140A specification and requires verification that application current demands do not exceed this limit. Extended operating temperature range (-55°C to 175°C) provides additional thermal margin. RoHS3 compliance and active product status support long-term availability. Reverse recovery time specification (85ns) is provided for applications requiring detailed switching analysis.

FGH75T65UPD-F085 (onsemi - MFR Recommended)

This part is designated "Not For New Designs" and carries automotive-grade qualification (AEC-Q101). The FGH75T65UPD-F085 maintains 650V voltage rating and 150A continuous current rating. Switching energy characteristics (2.85mJ on, 1.2mJ off) are favorable. However, the product status classification restricts its use to legacy design support and existing production continuity only. New design initiatives should not select this part. The higher gate charge (578nC) requires verification of gate driver capability.

Frequently Asked Questions (FAQ)

Q: Can the IGW75N60TFKSA1 be used in applications requiring 650V operation?

A: The IGW75N60TFKSA1 is rated for 600V maximum collector-emitter breakdown voltage. It is suitable only for applications where the maximum system voltage does not exceed 600V. For applications requiring 650V operation, select STGW80H65DFB or FGH75T65UPD-F085.

Q: What is the significance of Trench Field Stop technology in the substitute parts?

A: Trench Field Stop is an advanced IGBT architecture that reduces switching energy and improves thermal performance compared to standard IGBT designs. All three substitute parts incorporate this technology, offering improved efficiency over the original IRGP4266PBF standard IGBT design.

Q: Are the substitute parts pin-compatible with the IRGP4266PBF?

A: All substitute parts utilize the TO-247-3 package configuration with identical pin assignments (Collector, Gate, Emitter). Pin-level compatibility is confirmed. PCB layout modifications are not required for package substitution.

Q: What is the impact of higher gate charge values in substitute parts?

A: The IGW75N60TFKSA1 (470nC), STGW80H65DFB (414nC), and FGH75T65UPD-F085 (578nC) exhibit higher gate charge compared to the original IRGP4266PBF (210nC). Gate drivers rated for 15V gate voltage and capable of sourcing/sinking current for these charge values are required. Verify gate driver specifications before substitution.

Q: Can FGH75T65UPD-F085 be used in new product designs?

A: No. The FGH75T65UPD-F085 is classified as "Not For New Designs." This part is restricted to legacy design support and existing production continuity. New designs must select IGW75N60TFKSA1 or STGW80H65DFB.

Q: What is the current rating consideration for STGW80H65DFB?

A: The STGW80H65DFB is rated for 120A continuous collector current, which is 20A lower than the original IRGP4266PBF (140A). Applications requiring continuous current above 120A must select IGW75N60TFKSA1 (150A) or FGH75T65UPD-F085 (150A).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. IGW75N60TFKSA1, STGW80H65DFB, and FGH75T65UPD-F085 are all RoHS3 compliant, supporting modern environmental and regulatory requirements.

Q: What is the operating temperature range difference between substitute parts?

A: The IRGP4266PBF and IGW75N60TFKSA1 operate from -40°C to 175°C junction temperature. STGW80H65DFB and FGH75T65UPD-F085 extend the lower temperature limit to -55°C, providing additional thermal margin for cold-start applications.

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