IRFP064 N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IRFP064 is an N-Channel MOSFET manufactured by Vishay Siliconix, rated for 60V drain-to-source voltage and 70A continuous drain current in a TO-247-3 through-hole package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement. Substitute parts must maintain electrical and mechanical compatibility within the specified parameter ranges to ensure functional equivalence in circuit applications.

Substiute Parts

IRFP064

Vishay SiliconixIn Stock: 1508IRFP064 Datasheet

Current PartRFQ

IRFP064PBF

Vishay SiliconixIn Stock: 15419IRFP064PBF Datasheet

DirectRFQ

IRFP064NPBF

Infineon TechnologiesIn Stock: 65169IRFP064NPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRFP064 are classified based on electrical parameter compatibility and product status. The substitution logic is determined by the following criteria:

Direct Electrical Equivalents: Parts that maintain identical or equivalent Vdss, Id, Rds On, Vgs(th), and operating temperature range specifications, with matching TO-247-3 package configuration and through-hole mounting.

Functional Alternatives: Parts that provide equivalent or superior electrical performance within the same voltage and current class, with compatible package and mounting specifications.

The primary differentiator between substitute candidates is product status (active versus obsolete) and regulatory compliance (RoHS3 compliance status). All substitute parts must operate within the -55°C to 175°C temperature range and utilize the TO-247-3 through-hole package format.

Parameter Comparison

Engineering Selection Recommendations

IRFP064PBF (Vishay Siliconix): This part is the direct electrical equivalent of the IRFP064, maintaining identical Vdss (60V), Id (70A), Rds On (9 mOhm), and power dissipation (300W) specifications. The IRFP064PBF is classified as active product status and is RoHS3 compliant, addressing regulatory requirements for new designs and procurement. This substitute provides pin-for-pin compatibility and identical electrical performance with improved compliance posture. Tube packaging is standard for this active variant.

IRFP064NPBF (Infineon Technologies): This part represents a functional alternative with enhanced electrical performance characteristics. The IRFP064NPBF provides higher continuous drain current (110A versus 70A) and lower on-state resistance (8 mOhm versus 9 mOhm), with reduced gate charge (170 nC versus 190 nC). The drain-to-source voltage is rated at 55V, which is 5V lower than the IRFP064 specification. Power dissipation is rated at 200W, which is lower than the IRFP064 (300W). The IRFP064NPBF is active product status and RoHS3 compliant. This substitute is suitable for applications where the 55V Vdss rating is acceptable and where the enhanced current handling and reduced switching losses provide circuit benefits.

Selection between IRFP064PBF and IRFP064NPBF depends on circuit voltage requirements and thermal design constraints. For applications requiring the full 60V rating, IRFP064PBF is the appropriate selection. For applications operating at 55V or below with higher current demands, IRFP064NPBF offers performance advantages.

Frequently Asked Questions (FAQ)

Q: Can IRFP064PBF be used as a direct replacement for IRFP064?

A: Yes. IRFP064PBF is electrically and mechanically identical to IRFP064, with matching Vdss (60V), Id (70A), Rds On (9 mOhm), and TO-247-3 package configuration. The primary difference is product status (active versus obsolete) and RoHS3 compliance. Pin-for-pin substitution is valid.

Q: What are the voltage limitations when using IRFP064NPBF as a substitute?

A: IRFP064NPBF is rated for 55V Vdss, compared to IRFP064 at 60V. This part is suitable only for applications where the maximum drain-to-source voltage does not exceed 55V. Circuits designed for the full 60V rating of the original IRFP064 require IRFP064PBF or equivalent 60V-rated alternatives.

Q: How do gate charge differences affect circuit performance?

A: IRFP064NPBF has lower gate charge (170 nC) compared to IRFP064 (190 nC). Lower gate charge reduces switching losses and allows faster switching transitions with lower gate drive power requirements. This characteristic is beneficial in high-frequency switching applications but does not affect DC operating point or thermal performance in linear applications.

Q: Are all substitute parts available in the same packaging format?

A: IRFP064PBF and IRFP064NPBF are both supplied in tube packaging, which is standard for active production variants. The original IRFP064 packaging format is not specified in the provided data. Both substitutes maintain the TO-247-3 through-hole package configuration, ensuring mechanical compatibility with existing PCB layouts and thermal management solutions.

Q: What is the significance of RoHS3 compliance for these parts?

A: RoHS3 compliance indicates conformance to current regulatory requirements for hazardous substance restrictions in electrical and electronic equipment. IRFP064PBF and IRFP064NPBF are both RoHS3 compliant, making them suitable for applications subject to environmental and regulatory compliance mandates. The original IRFP064 is RoHS non-compliant and is classified as obsolete.

Q: Can IRFP064NPBF handle higher current than IRFP064?

A: Yes. IRFP064NPBF is rated for 110A continuous drain current, compared to IRFP064 at 70A. However, this higher current rating is only applicable within the 55V Vdss limit. Applications requiring both 60V operation and higher current capacity require alternative parts not listed in this comparison.

Q: How do power dissipation ratings differ between these parts?

A: IRFP064 and IRFP064PBF are both rated for 300W maximum power dissipation. IRFP064NPBF is rated for 200W. In thermal design calculations, the lower power dissipation rating of IRFP064NPBF may require additional thermal management considerations in high-power applications, despite its lower on-state resistance.