IRF3707ZSTRR Equivalent & Substitute Parts

Part Overview

The IRF3707ZSTRR is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 30V drain-to-source voltage with 59A continuous drain current at 25°C. The device is housed in a D2PAK (TO-263-3) surface mount package and is designed for applications requiring moderate to high current switching at low voltage levels. The IRF3707ZSTRR is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design support and procurement.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	59	A
On-State Resistance (Rds On) @ 21A, 10V	9.5	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	2.25	V
Gate Charge (Qg) @ 4.5V	15	nC
Power Dissipation (Max)	57	W
Operating Temperature Range	-55 to 175	°C
Package Type	D2PAK (TO-263-3)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the IRF3707ZSTRR is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Matching Parameters:

Drain-to-Source Voltage (Vdss): 30V
Package Type: D2PAK (TO-263-3) surface mount
FET Type: N-Channel MOSFET
Operating Temperature Range: -55°C to 175°C

Functional Compatibility Parameters:

Continuous Drain Current (Id): Substitute must meet or exceed 59A at 25°C
On-State Resistance (Rds On): Lower or equivalent values ensure thermal performance
Gate Charge (Qg): Lower values reduce switching losses
Power Dissipation: Substitute must handle thermal requirements of the application

Substitute parts are grouped based on current rating capability. Parts with current ratings below 59A are considered lower-performance alternatives suitable for reduced-current applications. Parts with current ratings at or above 59A are considered direct or upgraded substitutes.

Parameter Comparison

Parameter	IRF3707ZSTRR	IPB22N03S4L15ATMA1	PSMN017-30BL,118	PSMN4R3-30BL,118
Manufacturer	Infineon Technologies	Infineon Technologies	Nexperia USA Inc.	Nexperia USA Inc.
Vdss (V)	30	30	30	30
Id @ 25°C (A)	59	22	32	100
Rds On (mOhm)	9.5 @ 21A, 10V	14.6 @ 22A, 10V	17 @ 10A, 10V	4.1 @ 15A, 10V
Vgs(th) (V)	2.25 @ 250µA	2.2 @ 10µA	2.15 @ 1mA	2.15 @ 1mA
Qg (nC)	15 @ 4.5V	14 @ 10V	10.7 @ 10V	41.5 @ 10V
Power Dissipation (W)	57	31	47	103
Package	D2PAK (TO-263-3)	PG-TO263-3-2	D2PAK (TO-263-3)	D2PAK (TO-263-3)
Product Status	Obsolete	Obsolete	Obsolete	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Operating Temperature (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 175

Engineering Selection Recommendations

PSMN4R3-30BL,118 (Nexperia USA Inc.)

The PSMN4R3-30BL,118 is the primary substitute for the IRF3707ZSTRR. This device maintains the 30V Vdss rating and D2PAK package configuration while providing 100A continuous drain current, exceeding the original 59A specification. The PSMN4R3-30BL,118 carries Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The lower on-state resistance (4.1 mOhm) provides improved thermal efficiency compared to the IRF3707ZSTRR (9.5 mOhm), reducing power dissipation in switching applications.

PSMN017-30BL,118 (Nexperia USA Inc.)

The PSMN017-30BL,118 serves as an alternative substitute with 32A continuous drain current, positioned between the lower-current IPB22N03S4L15ATMA1 and the higher-current PSMN4R3-30BL,118. This device maintains 30V Vdss and D2PAK packaging with ROHS3 compliance and Obsolete product status. The PSMN017-30BL,118 is suitable for applications where the 59A rating of the original part can be reduced to 32A without functional impact.

IPB22N03S4L15ATMA1 (Infineon Technologies)

The IPB22N03S4L15ATMA1 is a lower-current alternative rated for 22A continuous drain current. This device maintains 30V Vdss and compatible TO-263-3 packaging with ROHS3 compliance. The IPB22N03S4L15ATMA1 is applicable only to designs where current requirements do not exceed 22A and represents a downgrade in current-handling capability from the original IRF3707ZSTRR specification.

Frequently Asked Questions (FAQ)

Q: Can the PSMN4R3-30BL,118 directly replace the IRF3707ZSTRR in all applications?

A: The PSMN4R3-30BL,118 maintains identical voltage rating (30V Vdss) and package type (D2PAK). The higher current rating (100A vs. 59A) and lower on-state resistance (4.1 mOhm vs. 9.5 mOhm) make it suitable for direct substitution in applications operating at or below 59A. Thermal design must account for the different power dissipation characteristics (103W vs. 57W maximum).

Q: What is the significance of the D2PAK package compatibility?

A: All substitute parts listed maintain the D2PAK (TO-263-3) surface mount package, ensuring mechanical and thermal interface compatibility with existing PCB layouts. No redesign of the printed circuit board footprint is required for substitution.

Q: Why is the IPB22N03S4L15ATMA1 listed as a substitute if it has lower current rating?

A: The IPB22N03S4L15ATMA1 is included as a substitute option for applications where the design current requirement is 22A or lower. This part maintains the 30V voltage rating and compatible package, making it suitable for reduced-current variants of the same circuit topology.

Q: What is the difference between Obsolete and Active product status?

A: Active product status indicates ongoing manufacturing and long-term availability from the manufacturer. Obsolete status indicates the part is no longer in production. The PSMN4R3-30BL,118 carries Active status, providing superior long-term supply assurance compared to the Obsolete IRF3707ZSTRR and other Obsolete substitutes.

Q: How do RoHS compliance differences affect substitution?

A: The IRF3707ZSTRR is RoHS non-compliant, while all listed substitutes (IPB22N03S4L15ATMA1, PSMN017-30BL,118, and PSMN4R3-30BL,118) are ROHS3 compliant. ROHS3 compliance is required for products sold into regulated markets and ensures restriction of hazardous substances. Substitution with ROHS3-compliant parts aligns designs with current regulatory requirements.

Q: Are there thermal considerations when substituting with the PSMN4R3-30BL,118?

A: The PSMN4R3-30BL,118 has a maximum power dissipation rating of 103W compared to the IRF3707ZSTRR at 57W. Thermal management design must be evaluated based on the specific application current profile and duty cycle. The lower on-state resistance of the PSMN4R3-30BL,118 may reduce junction temperature in high-current applications despite the higher maximum rating.

Q: Can the PSMN017-30BL,118 be used in place of the PSMN4R3-30BL,118?

A: The PSMN017-30BL,118 (32A) and PSMN4R3-30BL,118 (100A) are not interchangeable. The PSMN017-30BL,118 is suitable only for applications requiring 32A or less. The PSMN4R3-30BL,118 is the preferred substitute for applications requiring the full 59A capability of the original IRF3707ZSTRR.

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