IRF7426TR MOSFET N-Channel 20V 8SO Equivalent & Substitute Parts

Part Overview

The IRF7426TR is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 20V drain-to-source voltage with 11.5A continuous drain current at 25°C. This device is packaged in an 8-SO surface mount configuration and is classified as obsolete. Due to its obsolete status, identifying functionally equivalent substitute components is essential for design continuity, production support, and long-term supply chain management. The substitute parts listed maintain electrical compatibility within the specified voltage and current parameters while offering active product status from alternative manufacturers.

Substiute Parts

IRF7426TR

Infineon TechnologiesIn Stock: 760IRF7426TR Datasheet

Current PartRFQ

FDS6575

onsemiIn Stock: 80354FDS6575 Datasheet

MFR RecommendedRFQ

FDS6576

onsemiIn Stock: 28803FDS6576 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRF7426TR are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Voltage Rating (Vdss): All substitute parts maintain the 20V drain-to-source voltage specification, ensuring compatibility with circuit voltage requirements.

Current Rating (Id): Substitute parts are selected with continuous drain current ratings at or above 10A at 25°C, meeting or exceeding the IRF7426TR's 11.5A specification.

Package Type: All substitute parts utilize the 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring mechanical and thermal compatibility with existing PCB layouts.

Channel Type Consideration: The substitute parts listed (FDS6575, FDS6576) are P-Channel MOSFETs, whereas the IRF7426TR is N-Channel. These substitutes are provided as manufacturer-recommended alternatives and require circuit topology evaluation to confirm functional equivalence in specific applications.

Product Status: Substitute parts are selected from active product lines, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The IRF7426TR is classified as obsolete. The substitute parts FDS6575 and FDS6576 are both active products from onsemi, providing assured long-term availability and manufacturing support.

Compliance Status: The IRF7426TR is RoHS non-compliant. Both substitute parts (FDS6575 and FDS6576) are ROHS3 compliant, meeting current environmental and regulatory requirements for new designs and production environments subject to RoHS directives.

Electrical Compatibility: Both substitute parts maintain the 20V Vdss rating. FDS6576 provides 11A continuous drain current, closely matching the IRF7426TR's 11.5A specification. FDS6575 provides 10A continuous drain current, which is within acceptable tolerance for most applications requiring the IRF7426TR.

Thermal Performance: Both substitute parts specify 2.5W maximum power dissipation at ambient temperature, providing adequate thermal characteristics for surface mount applications.

Package Compatibility: All parts utilize identical 8-SOIC packaging with 0.154" (3.90mm) width, ensuring direct PCB layout compatibility without redesign.

Channel Type: Selection between FDS6575 and FDS6576 should be based on specific application current requirements. FDS6576 is recommended when the full 11.5A current capability of the original IRF7426TR is required. Both parts are P-Channel devices and require circuit topology verification to confirm functional equivalence in N-Channel applications.

Frequently Asked Questions (FAQ)

Q: Why are the substitute parts P-Channel MOSFETs when the IRF7426TR is N-Channel?

A: The substitute parts listed (FDS6575, FDS6576) are manufacturer-recommended alternatives provided in the original specification data. Channel type compatibility depends on circuit topology and application requirements. Engineering evaluation is necessary to confirm functional equivalence in specific circuit implementations.

Q: Can FDS6575 and FDS6576 be used interchangeably?

A: Both parts share identical voltage ratings (20V Vdss), package type (8-SOIC), and thermal specifications (2.5W). The primary difference is continuous drain current: FDS6575 provides 10A, while FDS6576 provides 11A. Selection depends on application current requirements. FDS6576 is preferred when maximum current capability matching the IRF7426TR's 11.5A specification is required.

Q: Are there any compliance differences between the IRF7426TR and substitute parts?

A: Yes. The IRF7426TR is RoHS non-compliant, while both FDS6575 and FDS6576 are ROHS3 compliant. This is significant for applications subject to RoHS directives or environmental regulations. Both substitute parts are REACH unaffected and classified as EAR99 for export control purposes, matching the original part's regulatory classification.

Q: What is the moisture sensitivity level for these parts?

A: All three parts (IRF7426TR, FDS6575, FDS6576) are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are the substitute parts available in different packaging options?

A: FDS6575 is available in Tape & Reel (TR) packaging. FDS6576 is available in Cut Tape (CT) and Digi-Reel® packaging. Both are surface mount configurations compatible with automated assembly processes.

Q: What are the gate charge specifications for the substitute parts?

A: FDS6575 specifies 74 nC maximum gate charge at 4.5V. FDS6576 specifies 60 nC maximum gate charge at 4.5V. Lower gate charge in FDS6576 may provide faster switching characteristics in gate-drive-limited applications.

Q: How do the on-resistance specifications compare?

A: FDS6575 specifies 13 mOhm maximum on-resistance at 10A, 4.5V. FDS6576 specifies 14 mOhm maximum on-resistance at 11A, 4.5V. Both values are within acceptable range for low-loss switching applications. The IRF7426TR on-resistance specification is not provided in the available data.