IXFX62N25 N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IXFX62N25 is an N-Channel MOSFET manufactured by IXYS, rated for 250V drain-to-source voltage with 62A continuous drain current at 25°C. This device is part of the HiPerFET™ series and features a PLUS247™-3 package (TO-247-3 variant) for through-hole mounting applications. The part is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing design support, production continuity, and system maintenance.

Substiute Parts

IXFX62N25

IXYSIn Stock: 1100IXFX62N25 Datasheet

Current PartRFQ

IXFX120N25P

IXYSIn Stock: 1407IXFX120N25P Datasheet

MFR RecommendedRFQ

IRFP4229PBF

Infineon TechnologiesIn Stock: 26444IRFP4229PBF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXFX62N25 is determined by the following critical electrical and mechanical parameters:

Mandatory Compatibility Criteria:

• Drain to Source Voltage (Vdss): 250V minimum
• FET Type: N-Channel
• Mounting Type: Through Hole
• Package / Case: TO-247-3 or compatible variant
• Drive Voltage: 10V gate drive capability

Performance Matching Criteria:

• Continuous Drain Current (Id): Equal to or greater than 62A
• Rds On (Max): Equal to or lower than 35 mOhm at specified conditions
• Power Dissipation: Equal to or greater than 390W
• Operating Temperature Range: Minimum -55°C to 150°C

Substitute parts are classified into two categories:

MFR Recommended Substitute: Parts explicitly recommended by the manufacturer for direct replacement, offering enhanced performance within the same electrical class.

Similar Substitute: Parts meeting all mandatory compatibility criteria and core electrical specifications, suitable for applications where the IXFX62N25 performance envelope is acceptable.

Parameter Comparison

Engineering Selection Recommendations

IXFX120N25P (MFR Recommended Substitute)

The IXFX120N25P is the manufacturer-recommended substitute for the obsolete IXFX62N25. This part maintains identical voltage rating (250V Vdss) and package form factor (TO-247-3 variant) while providing enhanced electrical performance. The IXFX120N25P delivers double the continuous drain current (120A versus 62A) and significantly improved power dissipation capability (700W versus 390W). The on-resistance is reduced to 24 mOhm at 60A, 10V, providing lower conduction losses. Operating temperature range extends to 175°C, exceeding the original specification. Both devices are ROHS3 compliant and carry identical regulatory status (REACH Unaffected, EAR99). This substitute is suitable for direct replacement in applications requiring equal or greater current handling and thermal performance.

IRFP4229PBF (Similar Substitute)

The IRFP4229PBF is an active Infineon Technologies HEXFET® device meeting all mandatory compatibility criteria. This part maintains the 250V Vdss rating and through-hole TO-247-3 package configuration. The continuous drain current is rated at 44A, which is lower than the original 62A specification. The on-resistance is 46 mOhm at 26A, 10V, representing higher conduction losses compared to the IXFX62N25. Power dissipation is rated at 310W, below the original 390W specification. The IRFP4229PBF is suitable for applications where the IXFX62N25 current and power ratings exceed system requirements, or where cost optimization is prioritized over performance headroom. This part is ROHS3 compliant and carries identical regulatory status. Operating temperature range extends to 175°C.

Frequently Asked Questions (FAQ)

Q: Can the IXFX120N25P be used as a direct replacement for the IXFX62N25?

A: Yes. The IXFX120N25P is the manufacturer-recommended substitute. Both devices share identical voltage rating (250V), gate drive voltage (10V), and package form factor (TO-247-3 variant). The IXFX120N25P provides enhanced performance with higher current capacity (120A versus 62A) and improved thermal characteristics (700W versus 390W). No circuit modifications are required for direct substitution.

Q: What are the key differences between the IXFX120N25P and IRFP4229PBF?

A: Both parts meet the 250V Vdss and TO-247-3 package requirements. The IXFX120N25P provides superior performance with 120A continuous current and 24 mOhm on-resistance, while the IRFP4229PBF is rated for 44A continuous current and 46 mOhm on-resistance. The IXFX120N25P is the manufacturer-recommended option. The IRFP4229PBF is suitable for applications with lower current requirements or where cost is a primary consideration.

Q: Are all substitute parts compatible with the original IXFX62N25 PCB layout?

A: Yes. All substitute parts use the TO-247-3 through-hole package configuration, maintaining identical pin spacing and mounting hole positions. No PCB modifications are required for physical installation.

Q: What is the impact of using the IRFP4229PBF in an application designed for the IXFX62N25?

A: The IRFP4229PBF has lower current capacity (44A versus 62A) and higher on-resistance (46 mOhm versus 35 mOhm). Applications operating near the 62A specification limit may experience thermal stress or insufficient current delivery. The IRFP4229PBF is suitable only for applications with design margins accommodating the reduced performance envelope.

Q: Are there temperature range considerations when substituting these parts?

A: The IXFX62N25 operates from -55°C to 150°C. Both substitute parts extend the upper limit to 175°C. The IRFP4229PBF has a minimum operating temperature of -40°C, which is 15°C higher than the original specification. Applications requiring operation below -40°C must use the IXFX120N25P, which maintains the -55°C minimum.

Q: Do all parts meet the same regulatory and compliance standards?

A: Yes. The IXFX62N25, IXFX120N25P, and IRFP4229PBF are all ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Moisture sensitivity level is 1 (unlimited) for all parts.