IRFP4710PBF Equivalent & Substitute Parts

Part Overview

The IRFP4710PBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 100V drain-to-source voltage with 72A continuous drain current at 25°C. This device features the HEXFET® series technology in a Through Hole TO-247AC package. The IRFP4710PBF is classified as Obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available packaging options.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	100	V
Continuous Drain Current (Id) @ 25°C	72	A
Power Dissipation (Max)	190	W
Rds On (Max) @ 45A, 10V	14	mOhm
Gate Charge (Qg) @ 10V	170	nC
Operating Temperature Range	-55 to 175	°C
Package Type	TO-247AC	Through Hole
FET Type	N-Channel
Technology	MOSFET (Metal Oxide)

Substitute Part Grouping Explanation

Substitution of the IRFP4710PBF is determined by the following critical parameters:

Electrical Compatibility Requirements:

Drain-to-Source Voltage (Vdss) must equal or exceed 100V
Continuous Drain Current (Id) must meet or exceed 72A at 25°C
Gate-Source Voltage (Vgs) maximum rating must be ±20V
Operating temperature range must encompass -55°C to 175°C

Mechanical Compatibility Requirements:

Mounting type must be Through Hole
Package footprint must be compatible with TO-247 series (TO-247AC, TO-247AD, or equivalent)

Performance Considerations:

On-resistance (Rds On) characteristics determine thermal performance
Gate charge (Qg) affects switching speed and drive circuit requirements
Input capacitance (Ciss) influences gate drive design

The three substitute parts listed below satisfy the electrical requirements while offering enhanced performance characteristics or alternative packaging options within the TO-247 family.

Parameter Comparison

Parameter	IRFP4710PBF	IRFP4310ZPBF	IXFH110N10P	IXTK200N10L2
Manufacturer	Infineon	Infineon	IXYS	IXYS
Vdss (V)	100	100	100	100
Id @ 25°C (A)	72	120	110	200
Power Dissipation Max (W)	190	280	480	1040
Rds On Max (mOhm)	14 @ 45A, 10V	6 @ 75A, 10V	15 @ 500mA, 10V	11 @ 100A, 10V
Gate Charge Qg (nC)	170 @ 10V	170 @ 10V	110 @ 10V	540 @ 10V
Vgs Max (V)	±20	±20	±20	±20
Operating Temperature (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 150
Package	TO-247AC	TO-247AC	TO-247AD	TO-264
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

IRFP4310ZPBF (Infineon Technologies)

The IRFP4310ZPBF is the primary manufacturer-recommended substitute. This part maintains identical voltage rating (100V Vdss) and package form factor (TO-247AC) while providing superior electrical performance. The IRFP4310ZPBF delivers 120A continuous drain current compared to the IRFP4710PBF's 72A, with reduced on-resistance (6 mOhm versus 14 mOhm). Power dissipation capability increases to 280W. The part is Active status with full ROHS3 compliance and unlimited moisture sensitivity level. Gate charge remains at 170 nC, maintaining compatibility with existing gate drive circuits. This substitute is suitable for direct replacement in applications where the enhanced current and thermal capabilities provide design margin.

IXFH110N10P (IXYS)

The IXFH110N10P offers 110A continuous drain current in a TO-247AD package variant. This part provides 480W power dissipation capability with lower gate charge (110 nC versus 170 nC), enabling faster switching characteristics. The TO-247AD package maintains mechanical compatibility with TO-247AC footprints in most applications. On-resistance specification (15 mOhm) is comparable to the original part. This substitute is suitable when lower switching losses and faster transient response are beneficial. Active product status ensures long-term availability.

IXTK200N10L2 (IXYS)

The IXTK200N10L2 represents a high-current alternative rated for 200A continuous drain current with 1040W power dissipation. This part uses the TO-264 package, which requires PCB layout modification but provides superior thermal performance through increased copper contact area. Gate charge increases to 540 nC, requiring gate drive circuit evaluation. Operating temperature maximum is 150°C versus 175°C for the original part. This substitute is appropriate for applications requiring significantly higher current capacity or improved thermal management in new designs.

Frequently Asked Questions (FAQ)

Q: Can the IRFP4310ZPBF directly replace the IRFP4710PBF without circuit modification?

A: Yes. The IRFP4310ZPBF maintains identical voltage rating (100V), gate charge (170 nC), and package form factor (TO-247AC). The enhanced current rating (120A versus 72A) and reduced on-resistance (6 mOhm versus 14 mOhm) provide improved performance without requiring gate drive circuit changes. PCB layout remains compatible.

Q: What is the primary difference between TO-247AC and TO-247AD packages?

A: Both packages are mechanically compatible with identical pin spacing and mounting hole patterns. The primary difference is internal lead frame geometry. TO-247AC and TO-247AD are functionally interchangeable in most applications, though PCB footprints should be verified for specific design requirements.

Q: Why does the IXTK200N10L2 have higher gate charge than other substitutes?

A: The IXTK200N10L2 is rated for 200A continuous drain current, significantly higher than the original 72A specification. Higher current capability requires larger die area and increased input capacitance, resulting in gate charge of 540 nC. Gate drive circuits must be evaluated to confirm adequate drive current capability.

Q: Is the IXTK200N10L2 suitable for direct replacement in existing designs?

A: The IXTK200N10L2 requires PCB layout modification due to the TO-264 package, which has different pin configuration and thermal pad dimensions compared to TO-247AC. Additionally, the higher gate charge (540 nC) may require gate drive circuit evaluation. This substitute is recommended for new designs rather than direct replacement.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts listed are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity level is 1 (Unlimited) for all parts, indicating no special moisture handling requirements during storage or assembly.

Q: How do on-resistance differences affect thermal performance?

A: On-resistance (Rds On) directly determines conduction losses through the formula P = I²R. The IRFP4310ZPBF with 6 mOhm Rds On generates lower heat than the IRFP4710PBF with 14 mOhm at equivalent current levels. Lower on-resistance reduces thermal management requirements and improves overall system efficiency.

Q: Can multiple substitute parts be used interchangeably in the same application?

A: No. Each substitute part has distinct electrical characteristics. Selection must be based on specific application requirements for current capacity, switching speed, thermal dissipation, and package constraints. Mixing different substitute parts in the same design is not recommended without thorough electrical and thermal analysis.

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