IRFR4615PBF N-Channel MOSFET 150V 33A DPAK Equivalent & Substitute Parts

Part Overview

The IRFR4615PBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 150V drain-to-source voltage with 33A continuous drain current at 25°C. The device is housed in a TO-252AA (DPAK) surface mount package and is designed for high-efficiency switching applications. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	IRFR4615PBF	—
Manufacturer	Infineon Technologies	—
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	150	V
Continuous Drain Current (Id) @ 25°C	33	A
On-Resistance (Rds On) @ 21A, 10V	42	mOhm
Gate Threshold Voltage (Vgs(th)) @ 100µA	5	V
Gate Charge (Qg) @ 10V	26	nC
Power Dissipation (Max)	144	W
Operating Temperature Range	-55 to 175	°C
Package Type	TO-252-3 DPAK	—
Product Status	Discontinued	—

Substitute Part Grouping Explanation

Substitution of the IRFR4615PBF is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Must equal or exceed 150V
Continuous Drain Current (Id): Must equal or exceed 33A at 25°C
Package Type: Must be TO-252-3 DPAK (surface mount compatibility)
FET Type: Must be N-Channel MOSFET
Operating Temperature Range: Must support -55°C to 175°C

Secondary Compatibility Parameters:

On-Resistance (Rds On): Lower values indicate improved efficiency
Gate Charge (Qg): Lower values reduce switching losses
Gate Threshold Voltage (Vgs(th)): Must be compatible with drive circuitry
Maximum Gate Voltage (Vgs Max): Must accommodate ±20V drive signals

The substitute parts listed below meet the primary criteria. Parts with lower Vdss ratings (100V) are listed as functional alternatives for applications where the full 150V rating is not required.

Parameter Comparison

Parameter	IRFR4615PBF	SUD80460E-GE3	STD25NF10LT4	STD25NF10T4	STD26NF10	STD15NF10T4	Unit
Manufacturer	Infineon	Vishay Siliconix	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	—
Vdss	150	150	100	100	100	100	V
Id @ 25°C	33	42	25	25	25	23	A
Rds On (Max) @ 10V	42	44.7	35	38	38	65	mOhm
Vgs(th) @ Id	5 @ 100µA	4 @ 250µA	2.5 @ 250µA	4 @ 250µA	4 @ 250µA	4 @ 250µA	V
Qg @ 10V	26	16	52	55	55	40	nC
Ciss @ Vds	1750 @ 50V	560 @ 50V	1710 @ 25V	1550 @ 25V	1550 @ 25V	870 @ 25V	pF
Power Dissipation (Max)	144	65.2	100	100	100	70	W
Package	TO-252AA DPAK	TO-252AA DPAK	DPAK	DPAK	DPAK	DPAK	—
Operating Temp Range	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	°C
Product Status	Discontinued	Active	Active	Active	Active	Active	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

Direct Voltage-Rated Substitute (150V Category):

The SUD80460E-GE3 (Vishay Siliconix ThunderFET®) is the primary substitute for the IRFR4615PBF. Both devices share the same 150V Vdss rating and TO-252AA DPAK package. The SUD80460E-GE3 provides 42A continuous drain current, exceeding the IRFR4615PBF specification of 33A. The SUD80460E-GE3 is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). This part is suitable for direct replacement in applications requiring 150V operation.

Functional Alternatives (100V Category):

For applications where the 150V voltage rating is not required, the STMicroelectronics STripFET™ II series offers active alternatives:

STD25NF10LT4 and STD25NF10T4: Both rated for 100V Vdss with 25A continuous drain current. The STD25NF10LT4 features lower on-resistance (35 mOhm @ 10V) and lower gate threshold voltage (2.5V @ 250µA), providing improved switching efficiency. The STD25NF10T4 offers standard gate threshold voltage (4V @ 250µA) with 38 mOhm on-resistance. Both are in active production with extensive inventory availability.
STD26NF10: Electrically identical to STD25NF10T4 with 100V Vdss, 25A continuous drain current, and 38 mOhm on-resistance. Active production status with RoHS3 compliance.
STD15NF10T4: Rated for 100V Vdss with 23A continuous drain current. Suitable for applications with lower current requirements. Features 65 mOhm on-resistance and 40 nC gate charge.

All substitute parts maintain the same operating temperature range (-55°C to 175°C), DPAK surface mount package configuration, and regulatory compliance (RoHS3, REACH Unaffected, EAR99 ECCN classification).

Frequently Asked Questions (FAQ)

Q: Can the SUD80460E-GE3 be used as a direct replacement for the IRFR4615PBF?

A: Yes. Both devices are rated for 150V Vdss, feature TO-252AA DPAK packaging, and support the same operating temperature range. The SUD80460E-GE3 provides higher continuous drain current (42A vs. 33A), making it suitable for direct substitution. Verify that your PCB layout and thermal management accommodate the device specifications.

Q: Why are the STMicroelectronics STD25NF10 series parts listed as substitutes if they are only rated for 100V?

A: The STD25NF10 series parts are listed as functional alternatives for applications where the full 150V voltage rating is not required. These parts offer active production status, superior on-resistance characteristics (35-38 mOhm), and extensive inventory availability. Use these parts only in circuits where the maximum drain-to-source voltage does not exceed 100V.

Q: What is the difference between STD25NF10LT4 and STD25NF10T4?

A: Both parts are rated for 100V Vdss and 25A continuous drain current with identical power dissipation (100W). The STD25NF10LT4 features lower on-resistance (35 mOhm @ 10V) and lower gate threshold voltage (2.5V @ 250µA), resulting in improved switching efficiency and lower gate drive requirements. The STD25NF10T4 has standard gate threshold voltage (4V @ 250µA) with slightly higher on-resistance (38 mOhm @ 10V). Select based on your gate drive circuit capabilities and efficiency requirements.

Q: Are all substitute parts available in the same DPAK package?

A: Yes. All listed substitute parts use the TO-252-3 DPAK (2 Leads + Tab) surface mount package, designated as SC-63. This ensures mechanical and thermal compatibility with existing PCB designs. No package conversion is required.

Q: What is the inventory status of these substitute parts?

A: The SUD80460E-GE3 has 15,300 pieces in stock. The STMicroelectronics parts have significantly higher inventory: STD25NF10T4 (1,000,100 pieces), STD25NF10LT4 (688,200 pieces), STD26NF10 (22,881 pieces), and STD15NF10T4 (15,300 pieces). All parts are new original stock with active production status.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. All listed substitute parts are RoHS3 compliant with REACH Unaffected status and EAR99 ECCN classification, matching the regulatory compliance of the IRFR4615PBF.

Q: Which substitute part should I select for a new design?

A: For 150V applications, select the SUD80460E-GE3. For 100V applications, select STD25NF10LT4 for superior efficiency or STD25NF10T4 for standard performance. All parts are in active production with full regulatory compliance and extensive inventory support.

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