IRFP460PBF N-Channel 500V 20A MOSFET Equivalent & Substitute Parts

Part Overview

The IRFP460PBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 500V drain-to-source voltage and 20A continuous drain current in a Through Hole TO-247AC package. This device is classified as Obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. The part operates across a temperature range of -55°C to 150°C and dissipates up to 280W at the case temperature.

Substiute Parts

IRFP460PBF

Infineon TechnologiesIn Stock: 31661IRFP460PBF Datasheet

Current PartRFQ

FCH150N65F-F155

onsemiIn Stock: 1951FCH150N65F-F155 Datasheet

DirectRFQ

IRFP460PBF

Vishay SiliconixIn Stock: 31697IRFP460PBF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRFP460PBF are classified into two categories based on parametric alignment:

Parametric Equivalent: Parts that match all critical electrical specifications (Vdss, Id, Rds On, Qg, power dissipation) and thermal operating range while maintaining identical package configuration. These parts are direct functional replacements with no circuit redesign required.

Direct Manufacturer Substitute: Parts that exceed the voltage or current ratings of the original device while maintaining N-Channel MOSFET topology and Through Hole mounting. These substitutes operate within compatible voltage and current envelopes but may introduce different gate charge characteristics and on-resistance profiles.

The substitution logic is based strictly on the following parameters:

• FET Type (N-Channel requirement)
• Drain to Source Voltage (Vdss) rating equal to or greater than 500V
• Continuous Drain Current (Id) equal to or greater than 20A
• On-Resistance (Rds On) at specified gate voltage
• Gate Charge (Qg) characteristics
• Power Dissipation capability
• Operating temperature range (-55°C to 150°C minimum)
• Through Hole mounting configuration
• TO-247 package family compatibility

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalent (Recommended for Direct Replacement):

The IRFP460PBF manufactured by Vishay Siliconix is a parametric equivalent suitable for direct substitution. This part maintains identical electrical specifications (500V Vdss, 20A Id, 270mOhm Rds On, 210nC Qg) and thermal characteristics while offering Active product status. The Vishay variant is ROHS3 compliant and carries unlimited moisture sensitivity rating, ensuring long-term availability and supply chain stability. No circuit modifications are required for this substitution.

Direct Manufacturer Substitute (For Enhanced Performance Applications):

The FCH150N65F-F155 from onsemi provides higher voltage rating (650V Vdss) and increased current capability (24A Id) within the same TO-247-3 package. This device exhibits superior on-resistance characteristics (150mOhm versus 270mOhm) and reduced gate charge (94nC versus 210nC), resulting in lower switching losses and improved thermal efficiency. However, this part carries Not For New Designs status. The FCH150N65F-F155 is suitable for applications where enhanced performance margins and lower dissipation are prioritized, provided design validation confirms compatibility with the higher voltage rating and different gate charge profile.

Both substitute options maintain ROHS3 compliance, identical operating temperature range, and Through Hole TO-247-3 package configuration.

Frequently Asked Questions (FAQ)

Q: Can the Vishay Siliconix IRFP460PBF directly replace the Infineon IRFP460PBF without circuit modification?

A: Yes. The Vishay variant is a parametric equivalent with identical Vdss (500V), Id (20A), Rds On (270mOhm), Qg (210nC), and power dissipation (280W) specifications. Gate threshold voltage, maximum gate voltage, and input capacitance are also matched. Direct substitution requires no circuit redesign.

Q: What are the key differences between the IRFP460PBF and the FCH150N65F-F155?

A: The FCH150N65F-F155 provides higher voltage rating (650V versus 500V), increased current capability (24A versus 20A), lower on-resistance (150mOhm versus 270mOhm), and reduced gate charge (94nC versus 210nC). All three devices share the same TO-247-3 package and operating temperature range. The FCH150N65F-F155 is classified as Not For New Designs.

Q: Is the FCH150N65F-F155 a suitable substitute for the IRFP460PBF in existing designs?

A: The FCH150N65F-F155 meets or exceeds all critical electrical parameters (Vdss, Id, power dissipation) and maintains package compatibility. However, the reduced gate charge (94nC versus 210nC) and lower on-resistance may affect gate drive circuit timing and thermal behavior. Design validation is required to confirm compatibility with existing gate drive circuitry and thermal management systems.

Q: Are all substitute parts RoHS compliant?

A: Yes. The Vishay Siliconix IRFP460PBF and onsemi FCH150N65F-F155 are both ROHS3 compliant. All parts are REACH Unaffected and classified under ECCN EAR99.

Q: What is the significance of product status (Obsolete, Active, Not For New Designs)?

A: Product status indicates lifecycle stage. Obsolete parts have reached end-of-life with limited availability. Active parts are in full production with assured long-term supply. Not For New Designs indicates the manufacturer is phasing out the product but existing inventory may be available. For new designs, the Active-status Vishay variant is recommended.

Q: Can these parts be used interchangeably in high-frequency switching applications?

A: The Vishay IRFP460PBF is a direct parametric match and suitable for interchangeable use. The FCH150N65F-F155 exhibits significantly lower gate charge (94nC versus 210nC), which affects switching frequency performance and gate drive requirements. Application-specific validation is required before substitution in high-frequency circuits.

Q: What packaging format is available for these parts?

A: All three parts are supplied in Through Hole TO-247-3 package configuration. The Infineon and onsemi variants are available in Tube packaging. Moisture sensitivity level is 1 (Unlimited) for Infineon and Not Applicable for onsemi.