MOSFET N-Channel 40V 75A TO-262 (64-2105PBF) Equivalent & Substitute Parts

Part Overview

The 64-2105PBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 40V drain-to-source voltage and 75A continuous drain current in a Through Hole TO-262 package. This device is part of the HEXFET® series and is classified as Obsolete. Due to its obsolete status and limited availability relative to active alternatives, equivalent substitute parts with compatible electrical and mechanical specifications are necessary for ongoing design support and production continuity.

Substiute Parts

64-2105PBF

Infineon TechnologiesIn Stock: 88364-2105PBF Datasheet

Current PartRFQ

IPI80N04S403AKSA1

Infineon TechnologiesIn Stock: 3128IPI80N04S403AKSA1 Datasheet

MFR RecommendedRFQ

STI270N4F3

STMicroelectronicsIn Stock: 1686STI270N4F3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 64-2105PBF is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Drain-to-Source Voltage (Vdss) must equal or exceed 40V
• Continuous Drain Current (Id) must meet or exceed 75A at 25°C
• Gate Threshold Voltage (Vgs(th)) must be compatible at specified test conditions
• Maximum Gate Voltage (Vgs Max) must be ±20V or greater
• Operating Temperature Range must span -55°C to 175°C

Mechanical Compatibility Requirements:

• Mounting Type: Through Hole
• Package Family: TO-262-3 Long Leads, I2PAK, or TO-262AA

Substitution Logic: Parts are considered equivalent when they meet or exceed the electrical ratings of the main part while maintaining mechanical compatibility. Parts with higher current ratings, lower on-state resistance, or higher power dissipation ratings are acceptable as direct substitutes provided all other parameters remain within compatible ranges. Product status (Active vs. Obsolete) and compliance certifications are secondary factors that support substitution feasibility.

Parameter Comparison

Engineering Selection Recommendations

IPI80N04S403AKSA1 (Infineon Technologies, Active Status)

This part is the primary recommended substitute. It maintains identical Vdss (40V) and equivalent Rds On (3.7 mOhm @ 80A, 10V) specifications. The continuous drain current rating of 80A exceeds the 75A requirement of the main part. Gate charge is reduced to 66 nC, providing improved switching performance. The device is Active in product status, ensuring long-term availability and supply chain stability. RoHS3 compliance and unlimited moisture sensitivity rating support manufacturing and environmental requirements. The PG-TO262-3 package is mechanically compatible with TO-262-3 specifications.

STI270N4F3 (STMicroelectronics, Obsolete Status)

This part exceeds the electrical requirements with a 160A continuous drain current rating and superior on-state resistance of 2.6 mOhm @ 80A, 10V. Power dissipation capability is significantly higher at 330W. However, the device is classified as Obsolete, which may limit long-term availability. The I2PAK package is mechanically compatible with TO-262-3 specifications. This part is suitable for applications requiring enhanced thermal performance or higher current capacity but should be evaluated against supply chain constraints due to obsolete status. AEC-Q101 automotive qualification is available for applications requiring automotive-grade components.

Frequently Asked Questions (FAQ)

Q: Can the IPI80N04S403AKSA1 directly replace the 64-2105PBF in existing designs?

A: Yes. The IPI80N04S403AKSA1 meets all electrical compatibility requirements: identical 40V Vdss rating, equivalent 3.7 mOhm on-state resistance, compatible gate threshold voltage, and matching ±20V gate voltage rating. The PG-TO262-3 package is mechanically compatible with TO-262-3 specifications. No circuit modifications are required.

Q: What is the difference between the TO-262-3 and I2PAK packages?

A: Both packages are Through Hole variants with compatible pin configurations and mechanical footprints. TO-262-3 (also designated TO-262AA) and I2PAK are interchangeable in PCB layouts designed for TO-262-3 specifications. Pin spacing and lead lengths are equivalent.

Q: Why does the STI270N4F3 have lower on-state resistance despite higher current rating?

A: Lower on-state resistance (2.6 mOhm vs. 3.7 mOhm) is a result of advanced semiconductor process technology and larger die area. The STI270N4F3 is designed for higher current applications and exhibits superior electrical characteristics. This results in reduced power dissipation during operation.

Q: Is the reduced gate charge of the IPI80N04S403AKSA1 (66 nC vs. 150 nC) significant?

A: Reduced gate charge improves switching speed and reduces gate drive power requirements. For applications with fast switching frequencies or limited gate drive capability, the IPI80N04S403AKSA1 provides performance advantages. For standard switching applications, both specifications are acceptable.

Q: Are there compliance or certification differences between the substitute parts?

A: The IPI80N04S403AKSA1 is RoHS3 compliant and Active in product status. The STI270N4F3 is RoHS3 compliant and AEC-Q101 qualified for automotive applications but is Obsolete. Both parts are REACH Unaffected and carry EAR99 ECCN classification. Select based on application requirements and supply chain availability.

Q: What is the inventory status of these substitute parts?

A: IPI80N04S403AKSA1 has 3100 pieces in stock. STI270N4F3 has 1585 pieces in stock. The main part 64-2105PBF has 841 pieces in stock. Inventory levels support immediate procurement for both substitute options.

Q: Can the STI270N4F3 be used in applications where the 64-2105PBF was originally specified?

A: Yes, with consideration for obsolete status. The STI270N4F3 exceeds all electrical requirements and is mechanically compatible. However, its Obsolete classification may result in limited future availability. It is suitable for applications requiring enhanced thermal performance or higher current capacity where long-term supply is not critical.