AUIRFS8407-7P N-Channel 40V 240A MOSFET Equivalent & Substitute Parts

Part Overview

The AUIRFS8407-7P is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 40V drain-to-source voltage with 240A continuous drain current. This device is packaged in a D2PAK-7 (TO-263-7) surface mount configuration and is part of the HEXFET® series. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for design continuity and procurement planning. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating packaging and availability constraints.

Substiute Parts

AUIRFS8407-7P

Infineon TechnologiesIn Stock: 1566AUIRFS8407-7P Datasheet

Current PartRFQ

AUIRFS8407-7TRL

Infineon TechnologiesIn Stock: 3824AUIRFS8407-7TRL Datasheet

MFR RecommendedRFQ

STH320N4F6-6

STMicroelectronicsIn Stock: 25442STH320N4F6-6 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AUIRFS8407-7P is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Drain-to-Source Voltage (Vdss): Must equal or exceed 40V
• Continuous Drain Current (Id): Must equal or exceed 240A at 25°C
• On-State Resistance (Rds On): Must not exceed 1.3mOhm at rated conditions
• Gate Threshold Voltage (Vgs(th)): Must fall within ±20V maximum gate voltage specification
• Operating Temperature Range: Must support -55°C to 175°C
• Technology: N-Channel MOSFET (Metal Oxide)
• Mounting Type: Surface Mount

Secondary Considerations:

• Package compatibility (D2PAK-7 or equivalent footprint)
• RoHS3 compliance status
• Product availability and inventory status

Two substitute parts are identified based on these criteria, with differentiation by packaging format and manufacturer.

Parameter Comparison

Engineering Selection Recommendations

AUIRFS8407-7TRL (Infineon Technologies)

This part is the manufacturer-recommended direct substitute for the AUIRFS8407-7P. Both devices share identical electrical specifications, including Vdss, Id, Rds On, Vgs(th), and gate charge. The primary difference is packaging format: AUIRFS8407-7TRL is supplied in Tape & Reel (TR) format versus the original Tube packaging. This substitute maintains full electrical and thermal compatibility with the original design. Product status is Active, ensuring long-term availability. RoHS3 compliance and MSL rating are identical. This substitute is appropriate for direct replacement in existing designs without circuit modification.

STH320N4F6-6 (STMicroelectronics)

This part provides electrical substitution with the following considerations: Continuous drain current is rated at 200A versus 240A for the original part, representing an 83% current rating. On-state resistance is specified at 80A rather than 100A. Power dissipation capability is higher at 300W. Gate charge is slightly elevated at 240nC. Package format is H2PAK-6, requiring PCB layout verification for footprint compatibility. The device carries AEC-Q101 automotive qualification and DeepGATE™/STripFET™ VI series designation. Inventory availability is significantly higher at 25,400 pieces. This substitute is suitable for applications where the 200A continuous current rating is sufficient and where H2PAK-6 package footprint can be accommodated.

Frequently Asked Questions (FAQ)

Q: Can AUIRFS8407-7TRL be used as a direct replacement for AUIRFS8407-7P?

A: Yes. AUIRFS8407-7TRL is the manufacturer-recommended substitute with identical electrical specifications. The only difference is packaging format (Tape & Reel versus Tube). No circuit modifications are required. PCB footprint remains unchanged as both use D2PAK-7 package.

Q: What is the key limitation of STH320N4F6-6 as a substitute?

A: The continuous drain current rating is 200A compared to 240A for the original part. This represents an 83% current capability. Applications requiring the full 240A continuous current cannot use this substitute. Additionally, the package format is H2PAK-6 rather than D2PAK-7, requiring PCB layout verification.

Q: Are all three parts RoHS3 compliant?

A: Yes. AUIRFS8407-7P, AUIRFS8407-7TRL, and STH320N4F6-6 are all RoHS3 compliant with MSL rating of 1 (Unlimited).

Q: What is the difference between D2PAK-7 and H2PAK-6 packages?

A: Both are surface mount packages in the TO-263 family. D2PAK-7 has 7 leads while H2PAK-6 has 6 leads. PCB footprints differ and are not interchangeable without layout redesign. Verify mechanical compatibility before selecting STH320N4F6-6.

Q: Why is AUIRFS8407-7P classified as obsolete?

A: Product status reflects manufacturer discontinuation. AUIRFS8407-7TRL is the active replacement from the same manufacturer and series, ensuring design continuity.

Q: Can STH320N4F6-6 be used in high-current applications rated for 240A?

A: No. The 200A continuous current rating of STH320N4F6-6 is insufficient for applications requiring 240A. Use only in designs where maximum continuous current does not exceed 200A.

Q: What is the operating temperature range for all three parts?

A: All three parts operate from -55°C to 175°C (junction temperature), providing identical thermal operating range.

Q: Is packaging format the only difference between AUIRFS8407-7P and AUIRFS8407-7TRL?

A: Yes. Both parts are from Infineon Technologies HEXFET® series with identical electrical and thermal specifications. AUIRFS8407-7P is supplied in Tube packaging while AUIRFS8407-7TRL is supplied in Tape & Reel format for automated assembly.