IXFN340N07 Equivalent & Substitute Parts

Part Overview

The IXFN340N07 is an N-Channel MOSFET manufactured by IXYS, rated for 70V drain-to-source voltage with 340A continuous drain current at 25°C. This device is housed in a SOT-227B chassis mount package and is part of the HiPerFET™ series. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning. Substitute parts must maintain electrical compatibility within the SOT-227B package form factor while meeting or exceeding the performance envelope of the original device.

Substiute Parts

IXFN340N07

IXYSIn Stock: 4055IXFN340N07 Datasheet

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IXFN360N10T

IXYSIn Stock: 2153IXFN360N10T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXFN340N07 is determined by the following critical electrical and mechanical parameters:

Voltage Rating Compatibility: The substitute part must support the application's maximum drain-to-source voltage requirement. The IXFN340N07 operates at 70V Vdss. Substitute parts with equal or higher voltage ratings are electrically compatible.

Current Handling Capacity: The substitute must deliver continuous drain current equal to or greater than 340A at 25°C to maintain system performance.

On-State Resistance (Rds On): Lower Rds On values indicate improved efficiency and reduced power dissipation. Substitutes with Rds On equal to or lower than the original specification are acceptable.

Power Dissipation Rating: The substitute must support thermal loads equal to or exceeding 700W at the case temperature to ensure reliable operation.

Package Compatibility: Both the original and substitute parts must use the SOT-227B (miniBLOC) chassis mount package to ensure mechanical and thermal interface compatibility.

Gate Charge and Input Capacitance: These parameters affect switching speed and drive circuit requirements. Substitutes with comparable or lower values maintain circuit performance characteristics.

The IXFN360N10T meets these substitution criteria through equivalent packaging, compatible voltage and current ratings, and improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The IXFN340N07 is classified as obsolete, while the IXFN360N10T is active. For new designs and long-term procurement, the IXFN360N10T is the appropriate selection due to its active product status and continued manufacturer support.

Compliance and Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across applications. No compliance barriers exist for substitution.

Electrical Performance: The IXFN360N10T provides superior electrical characteristics, including lower on-state resistance (2.6 mOhm versus 4 mOhm), higher continuous drain current (360A versus 340A), and increased power dissipation capability (830W versus 700W). These improvements result in reduced thermal load and improved efficiency.

Voltage Rating: The IXFN360N10T operates at 100V Vdss compared to the original 70V rating. This higher voltage rating provides additional design margin for applications operating at or below 70V, with no functional penalty.

Temperature Operating Range: The IXFN360N10T extends the maximum junction temperature to 175°C, compared to 150°C for the IXFN340N07, providing enhanced thermal headroom.

Package Compatibility: Both devices use identical SOT-227B (miniBLOC) chassis mount packaging, ensuring direct mechanical and thermal interface compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can the IXFN360N10T directly replace the IXFN340N07 in existing designs?

A: Yes. Both devices share the SOT-227B chassis mount package and are electrically compatible. The IXFN360N10T meets or exceeds all critical electrical parameters of the IXFN340N07, including current handling, power dissipation, and voltage rating. No circuit modifications are required.

Q: What is the significance of the higher 100V Vdss rating on the IXFN360N10T?

A: The 100V rating on the IXFN360N10T provides additional voltage margin for applications operating at 70V or below. This does not negatively impact performance; it simply indicates the device can withstand higher transient or peak voltages without degradation.

Q: How does the lower Rds On of the IXFN360N10T affect system performance?

A: Lower on-state resistance (2.6 mOhm versus 4 mOhm) reduces conduction losses and heat generation. This results in improved efficiency and reduced thermal management requirements, providing a performance advantage over the original part.

Q: Are there any thermal interface differences between these devices?

A: No. Both devices use the SOT-227B (miniBLOC) chassis mount package with identical mechanical and thermal interfaces. Mounting hardware, heatsink compatibility, and thermal coupling remain unchanged.

Q: What is the impact of the higher input capacitance (Ciss) on the IXFN360N10T?

A: The IXFN360N10T has higher input capacitance (36000 pF versus 12200 pF). This may require slightly increased gate drive current to maintain switching speed. Existing gate drive circuits should be evaluated to confirm adequate drive capability, though most modern drivers accommodate this range without modification.

Q: Why is the IXFN340N07 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The IXFN360N10T represents the active successor technology within the HiPerFET™ family, offering improved performance and continued manufacturer support.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the IXFN340N07 and IXFN360N10T are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the difference between the HiPerFET™ and HiPerFET™ Trench designations?

A: The IXFN360N10T incorporates Trench technology, an advanced manufacturing process that improves performance characteristics such as lower on-state resistance and reduced gate charge. This represents an evolution of the HiPerFET™ platform.