IRFP4228PBF N-Channel 150V 78A MOSFET Equivalent & Substitute Parts

Part Overview

The IRFP4228PBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 150V drain-to-source voltage and 78A continuous drain current at 25°C. This device features the HEXFET® series technology in a Through Hole TO-247AC package. The part is classified as Obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity. Substitute parts must maintain compatibility with the 150V voltage class and provide equivalent or superior current handling capability within the same package footprint.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	150	V
Continuous Drain Current (Id) @ 25°C	78	A (Tc)
On-State Resistance (Rds On Max) @ 33A, 10V	15.5	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	5	V
Gate Charge (Qg) @ 10V	107	nC
Power Dissipation (Max)	310	W (Tc)
Operating Temperature Range	-40 to 175	°C (TJ)
Package Type	TO-247AC	Through Hole
Moisture Sensitivity Level	1 (Unlimited)	MSL

Substitute Part Grouping Explanation

Substitution of the IRFP4228PBF is determined by the following critical parameters:

Voltage Class Compatibility: All substitute parts must maintain the 150V Vdss rating to ensure safe operation within the original circuit design envelope.

Current Rating: Substitute parts must support the 78A continuous drain current requirement or provide higher current capacity for direct replacement without circuit modification.

Package Compatibility: The TO-247AC package footprint is the primary mechanical constraint. Substitute parts must use TO-247-3 package variants (TO-247AC or TO-247AD) to ensure PCB mounting compatibility.

Gate Drive Voltage: All candidates operate at 10V drive voltage, ensuring compatibility with existing gate drive circuits.

Temperature Range: Operating temperature specifications must encompass the original -40°C to 175°C range or extend it.

Electrical Characteristics: On-state resistance, gate charge, and input capacitance values determine switching performance and thermal behavior in the application circuit.

Substitute parts are grouped into two categories:

Category 1 - Direct Voltage Class Substitutes (150V Rating): Parts maintaining the exact 150V Vdss specification with equal or superior current ratings and compatible package types.

Category 2 - Higher Voltage Class Parts: Parts with voltage ratings exceeding 150V, suitable only for applications where higher voltage margin is acceptable and circuit topology permits.

Parameter Comparison

Parameter	IRFP4228PBF	IRFP4568PBF	IXFH110N15T2	IRFPG50PBF
Manufacturer	Infineon	Infineon	IXYS	Vishay Siliconix
Vdss (V)	150	150	150	1000
Id @ 25°C (A)	78	171	110	6.1
Rds On Max (mOhm)	15.5 @ 33A	5.9 @ 103A	13 @ 0.5A	2000 @ 3.6A
Gate Charge Qg (nC)	107 @ 10V	227 @ 10V	150 @ 10V	190 @ 10V
Power Dissipation Max (W)	310	517	480	190
Operating Temp Range (°C)	-40 to 175	-55 to 175	-55 to 175	-55 to 150
Package	TO-247AC	TO-247AC	TO-247AD	TO-247AC
Product Status	Obsolete	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

IRFP4568PBF (Infineon Technologies) - Primary Substitute

The IRFP4568PBF is the recommended primary substitute for the IRFP4228PBF. Both devices share identical 150V Vdss ratings and are manufactured by Infineon Technologies within the same HEXFET® series. The IRFP4568PBF provides superior performance with 171A continuous drain current (2.2× the original specification), lower on-state resistance (5.9 mOhm vs. 15.5 mOhm), and higher power dissipation capability (517W vs. 310W). The part is Active status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. The TO-247AC package maintains mechanical compatibility. Higher gate charge (227 nC vs. 107 nC) requires verification of gate drive circuit capability but does not preclude substitution in most applications.

IXFH110N15T2 (IXYS) - Secondary Substitute

The IXFH110N15T2 maintains the 150V Vdss specification with 110A continuous drain current, providing 1.4× the original current rating. This part uses TO-247AD package variant, which is mechanically compatible with TO-247AC footprints. The device features HiPerFET™ and TrenchT2™ technologies with lower on-state resistance (13 mOhm) and moderate gate charge (150 nC). Operating temperature range extends to -55°C. Product status is Active with ROHS3 compliance. The TO-247AD package variant requires confirmation of PCB pad compatibility, though both TO-247AC and TO-247AD share identical pin configurations and mounting footprints.

IRFPG50PBF (Vishay Siliconix) - Not Recommended for Direct Substitution

The IRFPG50PBF operates at 1000V Vdss, which exceeds the original 150V specification by 6.7×. While the part is Active status with ROHS3 compliance, the significantly higher voltage rating and substantially lower current capacity (6.1A vs. 78A) make this part unsuitable for direct replacement in circuits designed for 150V operation. This part is listed in the original substitute field but does not meet the primary substitution criteria of voltage class compatibility.

Frequently Asked Questions (FAQ)

Q: Can the IRFP4568PBF directly replace the IRFP4228PBF without circuit modifications?

A: Yes, the IRFP4568PBF is a direct replacement. Both parts share 150V Vdss rating, identical gate drive voltage (10V), and compatible TO-247AC packages. The higher current rating (171A vs. 78A) and lower on-state resistance provide performance improvement. Gate charge is higher (227 nC vs. 107 nC), which may increase switching losses slightly but does not prevent substitution in standard gate drive circuits rated for 10V operation.

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

A: TO-247AC and TO-247AD are both three-pin Through Hole packages with identical pin configurations and mounting footprints. The designations reflect different manufacturer conventions (Infineon uses AC, IXYS uses AD). PCB compatibility is maintained between these variants. Pin spacing, lead diameter, and mounting hole positions are identical.

Q: Is the IRFPG50PBF suitable as a substitute for the IRFP4228PBF?

A: No. The IRFPG50PBF operates at 1000V Vdss, which is incompatible with circuits designed for 150V operation. The 6.1A current rating is also insufficient for the 78A requirement. This part is not a functional equivalent and should not be used as a replacement.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Drain-to-Source Voltage (Vdss) must match or exceed 150V; (2) Continuous Drain Current (Id) must equal or exceed 78A at 25°C; (3) Package type must be TO-247-3 variant (TO-247AC or TO-247AD); (4) Gate drive voltage must be compatible with 10V operation; (5) Operating temperature range must encompass -40°C to 175°C or extend it.

Q: Does the higher gate charge of the IRFP4568PBF affect circuit performance?

A: Gate charge (227 nC vs. 107 nC) affects switching speed and gate drive power dissipation. Higher gate charge requires longer switching times and increased gate drive current. Existing gate drive circuits rated for 10V operation will function correctly but may experience slightly increased switching losses. Gate drive circuit verification is recommended for high-frequency applications above 100 kHz.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The IRFP4568PBF, IXFH110N15T2, and IRFPG50PBF are all ROHS3 compliant. The original IRFP4228PBF RoHS status is not specified in the provided data. All substitute parts meet current regulatory requirements for hazardous substance restrictions.

Q: What is the inventory status of substitute parts?

A: IRFP4568PBF has 10,300 units in stock (Active status). IXFH110N15T2 has 1,316 units in stock (Active status). IRFPG50PBF has 3,280 units in stock (Active status). The original IRFP4228PBF has 4,624 units in stock but is Obsolete status, indicating no future production.

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