IRFS7734-7PPBF Equivalent & Substitute Parts

Part Overview

The IRFS7734-7PPBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 75V drain-to-source voltage with 197A continuous drain current at 25°C. This device is housed in a TO-263AB (D2PAK) surface mount package and is designed for high-current switching applications requiring efficient power dissipation up to 294W.

The IRFS7734-7PPBF is currently discontinued at DiGi Electronics. Locating equivalent or substitute components is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. The substitute part identified maintains electrical compatibility within the specified parameter ranges while offering improved availability and performance characteristics.

Substiute Parts

IRFS7734-7PPBF

Infineon TechnologiesIn Stock: 708IRFS7734-7PPBF Datasheet

Current PartRFQ

IRFS3107TRL7PP

Infineon TechnologiesIn Stock: 18456IRFS3107TRL7PP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRFS7734-7PPBF with the IRFS3107TRL7PP is based on the following electrical and mechanical compatibility criteria:

Matching Parameters:

• Drain-to-Source Voltage (Vdss): Both rated at 75V
• FET Type: Both N-Channel MOSFETs
• Technology: Both Metal Oxide Semiconductor technology
• Operating Temperature Range: Both -55°C to 175°C
• Package Family: Both D2PAK (TO-263) surface mount packages
• Gate Voltage (Vgs Max): Both ±20V
• RoHS3 Compliance: Both ROHS3 Compliant
• Moisture Sensitivity Level: Both MSL 1 (Unlimited)

Enhanced Performance Characteristics: The IRFS3107TRL7PP provides improved electrical performance with higher continuous drain current (240A vs. 197A), lower on-state resistance (2.6mOhm vs. 3.05mOhm), and increased power dissipation capability (370W vs. 294W). These enhancements maintain backward compatibility while offering superior thermal and current handling characteristics within the same voltage class and package footprint.

Parameter Comparison

Engineering Selection Recommendations

The IRFS3107TRL7PP is the direct substitute for the discontinued IRFS7734-7PPBF based on the following engineering criteria:

Electrical Compatibility: Both devices operate at identical voltage ratings (75V Vdss) and share the same FET type and technology classification. The IRFS3107TRL7PP maintains full backward compatibility with circuit designs specified for the IRFS7734-7PPBF.

Package Compatibility: Both components use D2PAK (TO-263) surface mount packages with identical footprints and pin configurations, enabling direct PCB layout substitution without redesign.

Regulatory Compliance: The IRFS3107TRL7PP maintains ROHS3 compliance and MSL 1 rating, matching the environmental and regulatory requirements of the original part.

Product Availability: The IRFS3107TRL7PP is currently active in production with substantial inventory availability (18,424 pieces), ensuring reliable supply chain access compared to the discontinued IRFS7734-7PPBF.

Performance Enhancement: The substitute part delivers improved electrical performance characteristics including higher current capacity, lower on-state resistance, and increased power dissipation capability, providing design margin benefits for existing applications.

Frequently Asked Questions (FAQ)

Q: Can the IRFS3107TRL7PP be used as a direct replacement for the IRFS7734-7PPBF in existing designs?

A: Yes. Both devices share identical voltage ratings (75V), FET type (N-Channel), technology (MOSFET), operating temperature range (-55°C to 175°C), and D2PAK package footprint. The IRFS3107TRL7PP provides enhanced performance specifications while maintaining full electrical and mechanical compatibility.

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

A: The IRFS3107TRL7PP offers improved performance with higher continuous drain current (240A vs. 197A), lower on-state resistance (2.6mOhm vs. 3.05mOhm), and greater power dissipation capability (370W vs. 294W). Gate charge is also reduced (240nC vs. 270nC), improving switching efficiency.

Q: Are the package dimensions identical between IRFS7734-7PPBF and IRFS3107TRL7PP?

A: Both devices use D2PAK (TO-263) surface mount packages with identical footprints. The IRFS7734-7PPBF uses TO-263AB variant while the IRFS3107TRL7PP uses the 7-Lead D2PAK configuration. Both are compatible with standard D2PAK PCB layouts.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the IRFS7734-7PPBF and IRFS3107TRL7PP are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and share identical REACH and ECCN classifications.

Q: Why is the IRFS7734-7PPBF discontinued?

A: The IRFS7734-7PPBF has been discontinued at DiGi Electronics. The IRFS3107TRL7PP represents the current production alternative from Infineon Technologies with superior electrical performance and active inventory status.

Q: Will substituting the IRFS3107TRL7PP affect circuit performance?

A: The lower on-state resistance and reduced gate charge of the IRFS3107TRL7PP will improve switching efficiency and reduce power dissipation in the circuit. These changes are beneficial and do not introduce compatibility issues.

Q: Are there any gate drive voltage differences between these parts?

A: Both parts specify ±20V maximum gate voltage. The gate threshold voltage differs slightly (3.7V vs. 4.0V), but both operate within standard gate drive voltage ranges used in industrial switching applications.