NTP90N02 Equivalent & Substitute Parts

Part Overview

The NTP90N02 is an N-Channel MOSFET manufactured by onsemi, rated for 24V drain-to-source voltage with 90A continuous drain current in a Through Hole TO-220 package. This device is classified as Obsolete, necessitating identification of equivalent substitute components for ongoing production and maintenance applications. Substitute parts must maintain functional compatibility within the specified electrical and mechanical parameters while accommodating the obsolescence status of the original component.

Substiute Parts

NTP90N02

onsemiIn Stock: 15455NTP90N02 Datasheet

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IRL3803PBF

Infineon TechnologiesIn Stock: 10139IRL3803PBF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the NTP90N02 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• FET Type: N-Channel (required for circuit topology compatibility)
• Package / Case: TO-220-3 (required for mechanical and thermal interface compatibility)
• Mounting Type: Through Hole (required for PCB assembly compatibility)
• Drain to Source Voltage (Vdss): Must equal or exceed 24V (required for voltage rating compatibility)
• Current - Continuous Drain (Id): Must equal or exceed 90A (required for current handling capability)

Performance Parameters:

• Rds On (Max): Lower or equal values indicate improved performance
• Power Dissipation (Max): Higher values provide thermal margin
• Operating Temperature Range: Must encompass the application requirements

The IRL3803PBF from Infineon Technologies meets all mandatory compatibility criteria with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

IRL3803PBF Substitution Assessment:

The IRL3803PBF is a functional equivalent for the NTP90N02 based on the following engineering criteria:

Electrical Compatibility:

• Vdss rating of 30V exceeds the 24V requirement, providing voltage margin
• Continuous drain current of 140A (Tc) exceeds the 90A requirement
• TO-220-3 package and Through Hole mounting provide direct mechanical compatibility
• Drive voltage specifications (4.5V, 10V) are identical

Compliance Status:

• IRL3803PBF holds ROHS3 Compliant status, addressing regulatory requirements where the NTP90N02 is RoHS non-compliant
• Both components are REACH Unaffected and classified as EAR99

Product Status Consideration:

• NTP90N02 is classified as Obsolete
• IRL3803PBF is classified as Not For New Designs, indicating limited future availability
• For new designs, alternative components from the IRL3803PBF substitute list (PSMN4R3-30PL,127; IRLB8748PBF; PSMN2R0-30PL,127; STP95N4F3; IRL7833PBF) may provide extended lifecycle support

Performance Characteristics:

• Higher power dissipation rating (200W vs. 85W) provides thermal design margin
• Extended operating temperature range (-55°C to 175°C vs. -55°C to 150°C) accommodates broader application environments
• Gate charge is higher (140 nC vs. 29 nC), requiring consideration in gate drive circuit design

Frequently Asked Questions (FAQ)

Q: Can the IRL3803PBF directly replace the NTP90N02 in existing designs?

A: The IRL3803PBF is mechanically and electrically compatible for direct substitution. Both components feature N-Channel topology, TO-220-3 packaging, and Through Hole mounting. The IRL3803PBF exceeds the voltage and current ratings of the NTP90N02, providing functional compatibility. Gate charge differences (140 nC vs. 29 nC) may require gate drive circuit evaluation for switching speed applications.

Q: What are the key differences between these components?

A: The primary differences are voltage rating (30V vs. 24V), current rating (140A vs. 90A), power dissipation (200W vs. 85W), and gate charge (140 nC vs. 29 nC). The IRL3803PBF provides higher performance margins and ROHS3 compliance. Operating temperature range extends to 175°C on the IRL3803PBF versus 150°C on the NTP90N02.

Q: Why is the gate charge specification important for substitution?

A: Gate charge (Qg) determines the energy required to switch the MOSFET on and off. The IRL3803PBF requires approximately 4.8 times more gate charge than the NTP90N02. Gate drive circuits must supply sufficient current to charge the gate within the required switching time. Existing gate drive designs may require verification to ensure adequate drive capability.

Q: Are there compliance differences between these components?

A: Yes. The NTP90N02 is RoHS non-compliant, while the IRL3803PBF is ROHS3 Compliant. Both are REACH Unaffected. For applications requiring RoHS compliance, the IRL3803PBF is the appropriate selection.

Q: What is the significance of the "Not For New Designs" status on the IRL3803PBF?

A: This status indicates that Infineon Technologies does not recommend the IRL3803PBF for new product development. While suitable for replacement in existing designs, long-term availability is not guaranteed. For new designs, evaluation of alternative components from the extended substitute list is recommended.

Q: Can the TO-220-3 package be used interchangeably between these components?

A: Yes. Both the NTP90N02 and IRL3803PBF use the TO-220-3 package with identical pin configuration and Through Hole mounting. Mechanical and thermal interface compatibility is maintained. PCB layout modifications are not required for package substitution.

Q: How do the Rds On specifications compare?

A: The NTP90N02 specifies 5.8 mOhm @ 90A, 10V, while the IRL3803PBF specifies 6 mOhm @ 71A, 10V. These measurements are taken at different current levels, making direct comparison complex. At equivalent operating points, the IRL3803PBF typically exhibits comparable or superior on-resistance performance due to larger die area and advanced process technology.