IRFS7730-7PPBF N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IRFS7730-7PPBF is an N-Channel MOSFET manufactured by Infineon Technologies, part of the StrongIRFET™ series. This device is rated for 75V drain-to-source voltage with 240A continuous drain current and 375W power dissipation. The part is housed in a D2PAK (7-Lead) surface mount package and is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design and production requirements.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	75	V
Continuous Drain Current (Id) @ 25°C	240	A
Rds On (Max) @ Id, Vgs	2	mOhm @ 100A, 10V
Power Dissipation (Max)	375	W
Operating Temperature Range	-55 to 175	°C
Gate Charge (Qg) @ 10V	428	nC
Package Type	D2PAK (7-Lead)	TO-263-7
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the IRFS7730-7PPBF is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

Drain-to-Source Voltage (Vdss) must be equal to or greater than 75V
Continuous Drain Current (Id) must be equal to or greater than 240A
On-state resistance (Rds On) must not exceed the original specification to maintain thermal performance
Power Dissipation capability must support 375W or greater
Gate charge characteristics must be compatible with existing drive circuitry
Operating temperature range must encompass -55°C to 175°C

Mechanical Compatibility Criteria:

Surface mount package type must be compatible with existing PCB layouts
Lead configuration and thermal characteristics must support the application's thermal management requirements
Moisture sensitivity level and compliance certifications must meet production and environmental standards

The substitute part IPT012N08N5ATMA1 meets these criteria through equivalent or superior electrical performance within the allowed parameter ranges.

Parameter Comparison

Parameter	IRFS7730-7PPBF	IPT012N08N5ATMA1	Compatibility
Manufacturer	Infineon Technologies	Infineon Technologies	Same
FET Type	N-Channel	N-Channel	Compatible
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	Compatible
Drain to Source Voltage (Vdss)	75V	80V	Substitute rated higher
Continuous Drain Current (Id) @ 25°C	240A	300A	Substitute rated higher
Rds On (Max) @ Id, Vgs	2 mOhm @ 100A, 10V	1.2 mOhm @ 150A, 10V	Substitute has lower resistance
Power Dissipation (Max)	375W	375W	Equal
Gate Charge (Qg) @ 10V	428 nC	223 nC	Substitute has lower gate charge
Operating Temperature Range	-55 to 175°C	-55 to 175°C	Compatible
Vgs (Max)	±20V	±20V	Compatible
Mounting Type	Surface Mount	Surface Mount	Compatible
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Compatible
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Compatible
REACH Status	REACH Unaffected	REACH Unaffected	Compatible
Product Status	Discontinued at DiGi Electronics	Active	Substitute is active

Engineering Selection Recommendations

IPT012N08N5ATMA1 as Primary Substitute:

The IPT012N08N5ATMA1 is qualified as a direct substitute for the IRFS7730-7PPBF based on the following engineering factors:

Electrical Performance: The substitute exceeds the original part's voltage and current ratings (80V/300A versus 75V/240A), ensuring full compatibility with existing circuit designs. The lower on-state resistance (1.2 mOhm versus 2 mOhm) provides improved thermal efficiency.
Compliance & Certifications: Both parts maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity levels (MSL 1), ensuring no additional supply chain or manufacturing constraints.
Product Availability: The substitute is currently active in production with 2126 pieces in stock, addressing the discontinuation of the original part.
Thermal Characteristics: Both parts support 375W power dissipation with identical operating temperature ranges (-55°C to 175°C), maintaining thermal design margins.
Package Compatibility: While the substitute uses a PG-HSOF-8-1 package (8-PowerSFN) instead of the original D2PAK (7-Lead), PCB layout modifications are required. Verify footprint compatibility with your specific application before implementation.

Frequently Asked Questions (FAQ)

Q: Can the IPT012N08N5ATMA1 directly replace the IRFS7730-7PPBF without circuit modifications?

A: Electrical substitution is valid. The substitute meets or exceeds all critical electrical parameters (voltage, current, power dissipation, and temperature range). However, the package type differs (PG-HSOF-8-1 versus D2PAK 7-Lead), requiring PCB layout and thermal management evaluation.

Q: What is the significance of the lower gate charge in the substitute part?

A: The IPT012N08N5ATMA1 has a gate charge of 223 nC compared to 428 nC in the original part. This lower gate charge reduces switching losses and may improve drive circuit efficiency, but existing gate drive circuitry must be verified for compatibility with the different package and pin configuration.

Q: Are there thermal management differences between these parts?

A: Both parts are rated for 375W power dissipation and operate across -55°C to 175°C. The substitute's lower on-state resistance (1.2 mOhm versus 2 mOhm) generates less heat at equivalent current levels, potentially improving thermal performance in the application.

Q: What compliance certifications apply to both parts?

A: Both the IRFS7730-7PPBF and IPT012N08N5ATMA1 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity level) ratings. No additional environmental or regulatory constraints apply to the substitution.

Q: How do the package differences affect implementation?

A: The original part uses a D2PAK (7-Lead) TO-263-7 package, while the substitute uses an 8-PowerSFN (PG-HSOF-8-1) package. These have different footprints, lead counts, and thermal tab configurations. PCB redesign and thermal interface verification are required before production implementation.

Q: Is the substitute part currently available?

A: Yes, the IPT012N08N5ATMA1 is an active product with 2126 pieces in stock, providing immediate availability compared to the discontinued IRFS7730-7PPBF.

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