IRFB3256PBF N-Channel 60V 75A MOSFET Equivalent & Substitute Parts

Part Overview

The IRFB3256PBF is an N-Channel MOSFET manufactured by Infineon Technologies, designed for high-current switching applications with a 60V drain-to-source voltage rating and 75A continuous drain current capability. This device features the HEXFET® series technology and is housed in a TO-220AB through-hole package.

The IRFB3256PBF is classified as an obsolete product. Locating equivalent or substitute components is necessary for ongoing system maintenance, repair, and new design implementations where legacy component specifications must be matched or exceeded.

Substiute Parts

IRFB3256PBF

Infineon TechnologiesIn Stock: 1838IRFB3256PBF Datasheet

Current PartRFQ

IPP032N06N3GXKSA1

Infineon TechnologiesIn Stock: 1945IPP032N06N3GXKSA1 Datasheet

MFR RecommendedRFQ

AOT264L

Alpha & Omega Semiconductor Inc.In Stock: 3862AOT264L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRFB3256PBF are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Drain-to-Source Voltage (Vdss): Must equal or exceed 60V
• Continuous Drain Current (Id): Must equal or exceed 75A at 25°C
• Package Type: Must be TO-220 or TO-220-3 through-hole configuration
• FET Type: N-Channel MOSFET technology
• Operating Temperature Range: Must encompass -55°C to 175°C

Secondary Compatibility Factors:

• On-State Resistance (Rds On): Lower or equivalent values indicate improved performance
• Gate Charge (Qg): Lower values reduce switching losses
• Power Dissipation capability: Must support thermal requirements

The substitute parts identified meet these criteria while maintaining functional equivalence for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

IPP032N06N3GXKSA1 (Infineon Technologies OptiMOS™ Series)

This substitute is manufactured by the same original equipment manufacturer as the IRFB3256PBF. The IPP032N06N3GXKSA1 exceeds the primary electrical specifications with 120A continuous drain current versus the original 75A rating. Both devices share identical 60V Vdss ratings and compatible TO-220-3 package configurations. The OptiMOS™ series represents a modern technology node within the Infineon product portfolio. Compliance certifications are not specified in the provided data.

AOT264L (Alpha & Omega Semiconductor Inc.)

The AOT264L provides 140A continuous drain current capability at case temperature, exceeding the IRFB3256PBF requirement of 75A. This device maintains the 60V Vdss specification and TO-220-3 package compatibility. The AOT264L is classified as an active product with confirmed ROHS3 compliance and REACH unaffected status, matching the regulatory compliance profile of the original component. Gate charge is significantly lower at 94 nC compared to 195 nC, resulting in reduced switching losses in high-frequency applications.

Both substitute parts satisfy the mandatory electrical and mechanical substitution criteria. Selection between them depends on supply chain availability, cost considerations, and specific application thermal management requirements.

Frequently Asked Questions (FAQ)

Q: Can the IPP032N06N3GXKSA1 directly replace the IRFB3256PBF in existing circuit designs?

A: Yes. Both devices share identical 60V Vdss ratings and compatible TO-220-3 package pinouts. The IPP032N06N3GXKSA1 provides higher current capability (120A vs. 75A), making it electrically suitable for direct substitution. Verify PCB layout and thermal management design accommodate the substitute component.

Q: What is the primary advantage of the AOT264L over the IRFB3256PBF?

A: The AOT264L offers 140A continuous drain current capability and significantly lower gate charge (94 nC vs. 195 nC). Lower gate charge reduces switching losses and improves efficiency in switching applications. The AOT264L is an active product with confirmed regulatory compliance, whereas the IRFB3256PBF is obsolete.

Q: Are there package compatibility concerns when substituting these parts?

A: Both substitute parts use TO-220-3 through-hole packages, maintaining mechanical and electrical pin compatibility with the IRFB3256PBF. Verify that PCB footprints and mounting hardware accommodate the specific package variant (TO-220AB vs. TO-220 vs. PG-TO220-3) if dimensional differences exist.

Q: What parameters must be verified before selecting a substitute?

A: Confirm that the substitute part meets or exceeds: (1) 60V Vdss rating, (2) 75A minimum continuous drain current at 25°C, (3) TO-220 series package configuration, (4) -55°C to 175°C operating temperature range, and (5) application-specific thermal dissipation requirements.

Q: Is the IPP032N06N3GXKSA1 available in the same packaging format as the IRFB3256PBF?

A: The IPP032N06N3GXKSA1 uses a PG-TO220-3 package supplied in tube format, while the IRFB3256PBF uses TO-220AB packaging. Both are TO-220 series through-hole packages with compatible pinouts. Verify packaging format compatibility with your procurement and assembly processes.

Q: What is the significance of the HEXFET® and OptiMOS™ series designations?

A: HEXFET® and OptiMOS™ are technology series identifiers from Infineon Technologies representing different generations of MOSFET design. OptiMOS™ represents a more recent technology platform. Both series are suitable for high-current switching applications; selection depends on availability and application requirements.