IRLU8113PBF N-Channel MOSFET 30V 94A Equivalent & Substitute Parts

Part Overview

The IRLU8113PBF is an N-Channel MOSFET manufactured by Infineon Technologies, part of the HEXFET® series. This device is rated for 30V drain-to-source voltage with 94A continuous drain current at 25°C and 89W maximum power dissipation. The component features a Through Hole IPAK (TO-251AA) package configuration with short leads.

The IRLU8113PBF is classified as Obsolete. Locating equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this component is specified in existing schematics and bill of materials documentation.

Substiute Parts

IRLU8113PBF

Infineon TechnologiesIn Stock: 10147IRLU8113PBF Datasheet

Current PartRFQ

IRLU8743PBF

Infineon TechnologiesIn Stock: 2092IRLU8743PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRLU8113PBF are identified based on strict electrical and mechanical compatibility criteria. The following parameters define the substitution scope:

Electrical Compatibility Criteria:

• Drain to Source Voltage (Vdss): Must equal or exceed 30V
• FET Type: Must be N-Channel
• Technology: Must be MOSFET (Metal Oxide)
• Gate Threshold Voltage (Vgs(th)): Must be within acceptable operating range
• Maximum Gate Voltage (Vgs Max): Must be ±20V or greater

Mechanical Compatibility Criteria:

• Package Type: Must be TO-251-3 Short Leads, IPAK (TO-251AA)
• Mounting Type: Must be Through Hole
• Pin configuration: Must match TO-251AA standard

Performance Considerations:

• Continuous Drain Current (Id): Substitute parts may have equal or higher current ratings
• On-State Resistance (Rds On): Lower values indicate improved performance
• Power Dissipation: Higher ratings provide design margin
• Operating Temperature Range: Must support -55°C to 175°C minimum

The IRLU8743PBF meets all electrical and mechanical compatibility requirements and is classified as a direct substitute for the obsolete IRLU8113PBF.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The IRLU8743PBF is a direct electrical and mechanical substitute for the IRLU8113PBF. Both devices share identical voltage ratings (30V Vdss), identical package configuration (TO-251AA Through Hole IPAK), and identical operating temperature range (-55°C to 175°C). Both components are manufactured by Infineon Technologies within the HEXFET® series.

Performance Advantages of IRLU8743PBF:

The IRLU8743PBF provides higher continuous drain current (160A versus 94A) and higher power dissipation capability (135W versus 89W). The on-state resistance is lower (3.1 mOhm versus 6 mOhm), resulting in reduced conduction losses. These characteristics make the IRLU8743PBF suitable for applications requiring higher current handling or improved thermal performance.

Compliance and Regulatory Status:

Both parts maintain REACH Unaffected status and EAR99 ECCN classification. The IRLU8743PBF carries RoHS3 Compliance certification. The IRLU8113PBF is classified as Obsolete, while the IRLU8743PBF is classified as Not For New Designs, indicating limited long-term availability for both components.

Application Considerations:

The IRLU8743PBF is suitable for direct replacement in existing IRLU8113PBF applications. The higher current and power ratings provide design margin without requiring circuit modifications. Pin-to-pin compatibility and identical voltage specifications ensure functional equivalence. Thermal management design should account for the improved thermal characteristics of the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the IRLU8743PBF directly replace the IRLU8113PBF in existing designs?

A: Yes. Both devices are N-Channel MOSFETs with identical 30V Vdss ratings, identical TO-251AA package configuration, and identical operating temperature range. Pin-to-pin compatibility is maintained. The IRLU8743PBF provides higher current and power ratings, making it suitable for direct substitution.

Q: What are the key electrical differences between these parts?

A: The IRLU8743PBF has higher continuous drain current (160A versus 94A), lower on-state resistance (3.1 mOhm versus 6 mOhm), higher power dissipation capability (135W versus 89W), and higher gate charge (59 nC versus 32 nC). Drain-to-source voltage, gate threshold voltage, and maximum gate voltage specifications are identical.

Q: Are there package compatibility concerns?

A: No. Both parts use the TO-251-3 Short Leads IPAK (TO-251AA) package with Through Hole mounting. PCB footprints and lead spacing are identical. No layout modifications are required.

Q: What is the significance of the product status classifications?

A: The IRLU8113PBF is classified as Obsolete, indicating it is no longer manufactured. The IRLU8743PBF is classified as Not For New Designs, indicating limited availability and that it should not be selected for new product development. Both components have restricted long-term supply availability.

Q: How do the gate charge specifications affect circuit design?

A: The IRLU8743PBF has higher gate charge (59 nC versus 32 nC), requiring more charge to switch the device. Gate driver circuits must supply sufficient current to meet switching speed requirements. Higher gate charge may result in slightly slower switching transitions compared to the original part.

Q: Are thermal management considerations different between these parts?

A: The IRLU8743PBF has lower on-state resistance and higher power dissipation rating, resulting in lower conduction losses and improved thermal performance. Existing thermal designs for the IRLU8113PBF will operate with improved margins when using the IRLU8743PBF substitute.

Q: What regulatory certifications apply to both parts?

A: Both parts maintain REACH Unaffected status and EAR99 ECCN classification. The IRLU8743PBF additionally carries RoHS3 Compliance certification. Both components are suitable for applications with equivalent regulatory requirements.