SMP3003-DL-1E MOSFET P-Channel Equivalent & Substitute Parts

Part Overview

The SMP3003-DL-1E is a P-Channel MOSFET manufactured by onsemi, rated for 75V drain-to-source voltage and 100A continuous drain current in a Surface Mount TO-263 (D2PAK) package. This device is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and production continuity. Substitute parts must maintain functional compatibility across critical electrical parameters including voltage rating, current capacity, and thermal characteristics while accommodating the same or compatible package footprints.

Substiute Parts

SMP3003-DL-1E

onsemiIn Stock: 2621SMP3003-DL-1E Datasheet

Current PartRFQ

IXTA120P065T

IXYSIn Stock: 89671IXTA120P065T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMP3003-DL-1E is determined by the following critical parameters:

Voltage Rating Compatibility: The substitute part must support a drain-to-source voltage (Vdss) equal to or greater than 75V to ensure safe operation within the original design envelope.

Current Capacity: The substitute part must deliver continuous drain current (Id) at or above 100A to maintain equivalent load-handling capability.

On-Resistance (Rds On): The substitute part must exhibit on-resistance characteristics that do not exceed the original specification to prevent excessive power dissipation and thermal stress.

Package Compatibility: The substitute part must utilize the TO-263 (D2PAK) surface mount package or a directly compatible variant to ensure PCB footprint alignment.

Thermal Performance: The substitute part must support the same maximum junction temperature (150°C) and provide adequate power dissipation capability for the intended application.

Regulatory Compliance: The substitute part must maintain ROHS3 compliance and equivalent environmental certifications.

The IXTA120P065T qualifies as a substitute based on these criteria, with the following considerations: it provides higher continuous drain current (120A) and superior power dissipation capability (298W), while operating at a lower voltage rating (65V). This substitution is valid for applications where the 65V rating is sufficient and the enhanced current and thermal performance provide design margin.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: IXTA120P065T

The IXTA120P065T is an active product from IXYS and qualifies as a direct substitute for the obsolete SMP3003-DL-1E based on the following engineering criteria:

Package Compatibility: Both devices utilize the TO-263 (D2PAK) surface mount package, ensuring PCB footprint compatibility without layout modifications.

Regulatory Compliance: The IXTA120P065T maintains ROHS3 compliance and equivalent environmental certifications (REACH Unaffected, EAR99 ECCN classification), matching the original part's compliance profile.

Electrical Performance: The IXTA120P065T delivers 120A continuous drain current, exceeding the original 100A specification. Gate charge is reduced to 185 nC from 280 nC, improving switching efficiency. Power dissipation capability increases to 298W from 90W, providing enhanced thermal margin.

Voltage Rating Consideration: The IXTA120P065T operates at 65V Vdss, which is 10V lower than the original 75V rating. This substitution is valid for applications where the circuit design operates at or below 65V. For applications requiring the full 75V rating, this substitute is not appropriate.

Availability: The IXTA120P065T is in active production with substantial inventory (89,640 units), ensuring long-term supply continuity compared to the obsolete SMP3003-DL-1E.

Frequently Asked Questions (FAQ)

Q: Can the IXTA120P065T replace the SMP3003-DL-1E in all applications?

A: The IXTA120P065T is a valid substitute only for applications where the circuit design operates at drain-to-source voltages of 65V or lower. If your application requires the full 75V rating of the original part, the IXTA120P065T is not suitable. Verify your circuit's maximum voltage stress before substitution.

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

A: The primary differences are voltage rating (75V vs. 65V), continuous drain current (100A vs. 120A), gate charge (280 nC vs. 185 nC), and power dissipation (90W vs. 298W). The IXTA120P065T provides higher current capacity and lower switching losses, but operates at a lower maximum voltage.

Q: Are the packages identical?

A: Both parts use the TO-263 (D2PAK) surface mount package with 2 leads plus tab. PCB footprints are compatible, and no layout changes are required for substitution.

Q: Does the IXTA120P065T have better thermal performance?

A: Yes. The IXTA120P065T is rated for 298W maximum power dissipation compared to 90W for the SMP3003-DL-1E. Both devices support a maximum junction temperature of 150°C. The higher power dissipation rating provides greater thermal margin in high-current applications.

Q: What is the gate charge difference, and does it matter?

A: The IXTA120P065T has lower gate charge (185 nC vs. 280 nC at 10V Vgs). Lower gate charge reduces switching losses and improves efficiency in PWM and switching applications. This is a performance advantage of the substitute part.

Q: Are both parts RoHS compliant?

A: Yes. Both the SMP3003-DL-1E and IXTA120P065T are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What is the maximum gate voltage for each part?

A: The SMP3003-DL-1E supports ±20V maximum gate voltage, while the IXTA120P065T supports ±15V. If your circuit applies gate voltages above ±15V, the original part specifications must be maintained.

Q: Is the IXTA120P065T currently available?

A: Yes. The IXTA120P065T is an active product with 89,640 units in stock, ensuring immediate availability and long-term supply continuity.