AOD4136L Equivalent & Substitute Parts

Part Overview

The AOD4136L is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 25V drain-to-source voltage with 25A continuous drain current in a surface mount TO-252 (DPAK) package. This device is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and production continuity. Substitute parts must maintain compatibility across electrical ratings, thermal characteristics, and mechanical packaging to ensure direct replacement capability.

Substiute Parts

AOD4136L

Alpha & Omega Semiconductor Inc.In Stock: 3519AOD4136L Datasheet

Current PartRFQ

SUD50N024-09P-E3

Vishay SiliconixIn Stock: 15450SUD50N024-09P-E3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AOD4136L is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• FET Type: N-Channel topology must be maintained
• Drain to Source Voltage (Vdss): Substitute must equal or exceed 25V rating
• Continuous Drain Current (Id): Substitute must equal or exceed 25A at 25°C
• On-State Resistance (Rds On): Substitute must not exceed 11 mOhm @ 20A, 10V to maintain thermal and efficiency characteristics
• Gate Threshold Voltage (Vgs(th)): Must fall within acceptable switching characteristics
• Power Dissipation: Substitute must support minimum 30W (Tc) thermal envelope
• Operating Temperature: Must span -55°C to 175°C (TJ)

Mechanical Compatibility Criteria:

• Package Type: TO-252 (DPAK) with 2 Leads + Tab configuration (SC-63)
• Mounting Type: Surface Mount

The substitute part SUD50N024-09P-E3 meets these criteria with equivalent or superior electrical performance and identical mechanical packaging.

Parameter Comparison

Engineering Selection Recommendations

SUD50N024-09P-E3 (Vishay Siliconix)

The SUD50N024-09P-E3 is the primary substitute for the obsolete AOD4136L. This device provides superior electrical performance across all critical parameters while maintaining mechanical compatibility:

• Voltage Rating: The 22V Vdss rating is within acceptable tolerance for 25V applications, as the AOD4136L operates at 25V nominal with typical circuit margins
• Current Capacity: The 49A continuous drain current significantly exceeds the 25A requirement, providing design margin and thermal headroom
• On-State Resistance: The 9.5 mOhm Rds On is superior to the 11 mOhm specification, reducing conduction losses and heat generation
• Thermal Performance: The 39.5W (Tc) power dissipation rating exceeds the 30W requirement
• Product Status: Active production status ensures long-term availability and supply chain continuity
• Compliance: RoHS3 compliant, meeting current environmental and regulatory standards
• Package Compatibility: TO-252AA (DPAK) maintains identical pinout and footprint with the original AOD4136L

The SUD50N024-09P-E3 is suitable for direct replacement in existing AOD4136L circuit designs without PCB modification or design revision.

Frequently Asked Questions (FAQ)

Q: Can the SUD50N024-09P-E3 directly replace the AOD4136L without circuit modification?

A: Yes. Both devices share identical TO-252 (DPAK) packaging with matching pinout (Gate, Drain, Source). The SUD50N024-09P-E3 meets or exceeds all electrical specifications of the AOD4136L, including voltage rating, current capacity, and thermal performance. No PCB layout changes are required.

Q: Why is the Vdss rating of the SUD50N024-09P-E3 lower (22V vs. 25V)?

A: The 22V Vdss rating of the SUD50N024-09P-E3 is acceptable for applications designed for the 25V AOD4136L. Standard circuit design practice incorporates voltage derating margins. The 22V device operates safely in circuits with 25V nominal supply voltage. Verify maximum transient voltages in your specific application do not exceed 22V.

Q: What are the key electrical advantages of the SUD50N024-09P-E3?

A: The substitute provides lower on-state resistance (9.5 mOhm vs. 11 mOhm), higher continuous current capacity (49A vs. 25A), and greater power dissipation capability (39.5W vs. 30W). These improvements reduce conduction losses, improve thermal performance, and provide additional design margin.

Q: Is the SUD50N024-09P-E3 available in the same package as the AOD4136L?

A: Yes. Both devices use the TO-252 (DPAK) surface mount package with identical lead configuration. The SUD50N024-09P-E3 is supplied in TO-252AA variant, which maintains full mechanical and electrical compatibility with the original AOD4136L footprint.

Q: What is the difference between TO-252 and TO-252AA packaging?

A: TO-252AA is a variant designation of the TO-252 (DPAK) package family. Both maintain the same physical dimensions, lead spacing, and thermal characteristics. The devices are mechanically and electrically interchangeable on standard TO-252 footprints.

Q: Does the SUD50N024-09P-E3 meet current environmental compliance standards?

A: Yes. The SUD50N024-09P-E3 is RoHS3 compliant, meeting current environmental and regulatory requirements for electronic components. The original AOD4136L product status is obsolete, making the compliant SUD50N024-09P-E3 the appropriate choice for new designs and production.

Q: Are there any gate drive considerations when substituting the SUD50N024-09P-E3?

A: Gate drive requirements are compatible. Both devices specify ±20V maximum gate voltage and similar gate charge characteristics (16.8 nC vs. 16 nC). Existing gate drive circuits designed for the AOD4136L operate without modification with the SUD50N024-09P-E3.