IXFR48N50Q Equivalent & Substitute Parts

Part Overview

The IXFR48N50Q is an N-Channel MOSFET rated for 500V drain-to-source voltage with 40A continuous drain current at 25°C. This device is manufactured by IXYS in the HiPerFET™ Q Class series and is housed in a TO-247-3 ISOPLUS247™ package for through-hole mounting applications. The part is currently Active in product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges. Alternative models may be required due to inventory availability, application-specific performance requirements, or design optimization needs.

Substiute Parts

IXFR48N50Q

IXYSIn Stock: 14314IXFR48N50Q Datasheet

Current PartRFQ

IXFR80N50Q3

IXYSIn Stock: 7081IXFR80N50Q3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IXFR48N50Q is determined by the following critical parameters:

Voltage Rating Compatibility: The substitute part must maintain the 500V Vdss rating to ensure safe operation in the same circuit topology without exceeding voltage stress limits.

Package and Mounting: The substitute must use the TO-247-3 ISOPLUS247™ through-hole package to ensure mechanical and thermal interface compatibility with existing PCB layouts and heatsink mounting arrangements.

Thermal and Current Capability: While the substitute may exceed the continuous drain current specification, it must operate within the same temperature range (-55°C to 150°C) to maintain thermal management consistency.

Compliance and Certifications: Both the main part and substitute must maintain RoHS3 compliance, REACH unaffected status, and MSL Level 1 rating to ensure regulatory and environmental compatibility.

The IXFR80N50Q3 qualifies as a substitute based on matching voltage rating, package type, mounting configuration, temperature range, and compliance certifications while providing enhanced current handling capability.

Parameter Comparison

Engineering Selection Recommendations

IXFR48N50Q Primary Selection: This part is recommended for applications requiring the specified 40A continuous drain current rating with 500V voltage capability. The device maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating, ensuring long-term availability and regulatory compliance.

IXFR80N50Q3 Substitute Selection: This part is suitable for applications where higher current handling capacity (50A continuous drain current) is beneficial within the same 500V voltage class. The substitute maintains identical voltage rating, package configuration, temperature range, and compliance certifications. The lower on-resistance (72 mOhm vs. 110 mOhm) and higher power dissipation capability (570W vs. 310W) provide enhanced thermal performance. Both devices are Active in product status with equivalent regulatory compliance.

Compatibility Assurance: Both parts share the TO-247-3 ISOPLUS247™ package, identical operating temperature range, and matching compliance certifications. Direct substitution is mechanically and thermally compatible without PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the IXFR80N50Q3 be used as a direct replacement for the IXFR48N50Q?

A: Yes. Both devices share identical 500V Vdss rating, TO-247-3 ISOPLUS247™ package configuration, through-hole mounting type, and operating temperature range (-55°C to 150°C). The substitute provides higher continuous drain current (50A vs. 40A) and lower on-resistance, making it electrically compatible for applications designed for the IXFR48N50Q.

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

A: The primary differences are continuous drain current rating (40A vs. 50A), on-resistance (110 mOhm vs. 72 mOhm), power dissipation capability (310W vs. 570W), and series classification (Q Class vs. Q3 Class). The IXFR80N50Q3 offers superior thermal performance and current handling within the same voltage and package specifications.

Q: Are there any thermal management considerations when substituting these parts?

A: Both devices operate within the same temperature range and use identical packaging. The IXFR80N50Q3 has higher power dissipation capability (570W vs. 310W), which may reduce thermal stress in high-current applications. Existing heatsink and thermal interface designs remain compatible.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the IXFR48N50Q and IXFR80N50Q3 are RoHS3 compliant, REACH unaffected, and carry MSL Level 1 (unlimited) moisture sensitivity rating. Regulatory and environmental compliance is equivalent.

Q: What is the gate charge difference and does it affect circuit design?

A: Gate charge is 190 nC for the IXFR48N50Q and 200 nC for the IXFR80N50Q3, a difference of approximately 5%. This minimal variation does not require gate drive circuit redesign for most applications.

Q: Can the IXFR48N50Q be substituted with the IXFR80N50Q3 in existing designs?

A: Yes. The identical voltage rating, package type, mounting configuration, and temperature range ensure mechanical and electrical compatibility. No PCB layout or thermal management modifications are required.