IXFX74N50P2 N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IXFX74N50P2 is an N-Channel MOSFET rated for 500V drain-to-source voltage with 74A continuous drain current at 25°C. This device is manufactured by IXYS and packaged in the PLUS247™-3 (TO-247-3 variant) through-hole configuration. The component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain electrical compatibility across critical parameters including voltage rating, current capacity, and thermal characteristics while accommodating the through-hole mounting requirement.

Substiute Parts

IXFX74N50P2

IXYSIn Stock: 775IXFX74N50P2 Datasheet

Current PartRFQ

IXFX94N50P2

IXYSIn Stock: 1625IXFX94N50P2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXFX74N50P2 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Voltage Rating Compatibility: The substitute part must maintain a Drain to Source Voltage (Vdss) rating of 500V to ensure safe operation in the original circuit application.

Current Capacity: The substitute part must support continuous drain current (Id) at or above 74A at 25°C to fulfill the original design current requirements.

On-State Resistance (Rds On): The substitute part must maintain Rds On characteristics compatible with the original specification to preserve circuit efficiency and thermal performance.

Gate Drive Characteristics: The substitute part must operate with the same drive voltage (10V) and maintain compatible gate threshold voltage (Vgs(th)) and gate charge (Qg) parameters to ensure proper gate driver compatibility.

Thermal Performance: The substitute part must support equivalent or superior power dissipation capability to maintain thermal stability in the application.

Package Configuration: The substitute part must utilize the PLUS247™-3 (TO-247-3 variant) through-hole package to ensure mechanical and electrical compatibility with the original PCB layout.

Operating Temperature Range: The substitute part must support the full operating temperature range of -55°C to 150°C (TJ).

The IXFX94N50P2 meets these substitution criteria and is identified as a direct equivalent for the obsolete IXFX74N50P2.

Parameter Comparison

Engineering Selection Recommendations

The IXFX94N50P2 is the primary substitute for the obsolete IXFX74N50P2. Both devices are manufactured by IXYS and share identical voltage ratings, drive voltage specifications, and operating temperature ranges. The IXFX94N50P2 is currently in active production status, ensuring long-term availability and supply chain continuity.

The IXFX94N50P2 provides enhanced electrical performance relative to the IXFX74N50P2. The substitute part delivers 94A continuous drain current compared to 74A in the original part, representing a 27% increase in current capacity. The on-state resistance (Rds On) is reduced from 77mOhm to 55mOhm, improving efficiency and reducing power dissipation in switching applications.

Both parts maintain identical gate drive voltage requirements (10V) and compatible gate threshold voltage characteristics, ensuring compatibility with existing gate driver circuits. The IXFX94N50P2 carries RoHS3 compliance certification, providing enhanced environmental and regulatory alignment compared to the obsolete original part.

The identical TO-247-3 through-hole package configuration ensures direct mechanical compatibility with existing PCB layouts without requiring design modifications. Both parts maintain MSL 1 (Unlimited) moisture sensitivity classification, indicating no special moisture handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can the IXFX94N50P2 be used as a direct replacement for the IXFX74N50P2 without circuit modifications?

A: Yes. The IXFX94N50P2 maintains identical voltage ratings (500V Vdss), drive voltage (10V), gate threshold voltage (5V), and operating temperature range (-55°C to 150°C). The identical TO-247-3 through-hole package ensures mechanical compatibility. The substitute part's enhanced current capacity (94A vs. 74A) and reduced on-state resistance (55mOhm vs. 77mOhm) provide improved performance without requiring circuit redesign.

Q: What are the key electrical differences between the IXFX74N50P2 and IXFX94N50P2?

A: The primary differences are continuous drain current (94A vs. 74A), on-state resistance (55mOhm vs. 77mOhm), gate charge (220nC vs. 165nC), and input capacitance (13700pF vs. 9900pF). The IXFX94N50P2 delivers higher current capacity and lower on-state resistance, resulting in improved efficiency. The increased gate charge and input capacitance require slightly higher gate drive energy but remain compatible with standard gate driver circuits operating at 10V.

Q: Are there any thermal considerations when substituting the IXFX94N50P2 for the IXFX74N50P2?

A: The IXFX94N50P2 has a maximum power dissipation rating of 1300W compared to 1400W for the IXFX74N50P2. Both parts operate across the same temperature range (-55°C to 150°C). The reduced on-state resistance of the substitute part (55mOhm vs. 77mOhm) typically results in lower power dissipation during operation, offsetting the slightly lower maximum rating.

Q: Is the IXFX94N50P2 available in the same packaging as the IXFX74N50P2?

A: Yes. Both parts use the PLUS247™-3 (TO-247-3 variant) through-hole package. The IXFX94N50P2 is supplied in tube packaging, while the original part was supplied in standard packaging. The physical dimensions and pin configuration are identical, ensuring direct PCB compatibility.

Q: What is the product status difference between these two parts?

A: The IXFX74N50P2 is classified as obsolete, indicating discontinued production and limited availability. The IXFX94N50P2 is in active production status, ensuring reliable long-term supply and continued manufacturer support. This status difference makes the IXFX94N50P2 the recommended choice for new designs and ongoing production requirements.

Q: Are there any compliance or regulatory differences between the IXFX74N50P2 and IXFX94N50P2?

A: Both parts maintain REACH Unaffected status and identical ECCN (EAR99) and HTSUS (8541.29.0095) classifications. The IXFX94N50P2 carries RoHS3 compliance certification, providing enhanced environmental compliance. Both parts maintain MSL 1 (Unlimited) moisture sensitivity classification.

Q: How do the gate charge specifications affect gate driver selection?

A: The IXFX94N50P2 requires 220nC gate charge at 10V compared to 165nC for the IXFX74N50P2. This 33% increase in gate charge requires proportionally higher gate drive energy but remains compatible with standard gate driver circuits. Existing gate drivers rated for 10V operation will function correctly with the substitute part; however, switching frequency or gate drive current may require adjustment to maintain optimal performance in high-frequency applications.