AOD417 MOSFET P-Channel 30V 25A TO-252 Equivalent & Substitute Parts

Part Overview

The AOD417 is a P-Channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET) rated for 30V 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 ongoing design requirements and production continuity. Substitute parts must maintain electrical compatibility within the specified parameter ranges while meeting current product availability and compliance standards.

Substiute Parts

AOD417

Alpha & Omega Semiconductor Inc.In Stock: 67959AOD417 Datasheet

Current PartRFQ

AOD409

Alpha & Omega Semiconductor Inc.In Stock: 250232AOD409 Datasheet

MFR RecommendedRFQ

DMP3028LK3-13

Diodes IncorporatedIn Stock: 30644DMP3028LK3-13 Datasheet

MFR RecommendedRFQ

STD26P3LLH6

STMicroelectronicsIn Stock: 10461STD26P3LLH6 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AOD417 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• FET Type: P-Channel topology required
• Drain-to-Source Voltage (Vdss): Minimum 30V rating (higher ratings acceptable for backward compatibility)
• Continuous Drain Current (Id): Minimum 25A at rated temperature
• Package Type: TO-252 (DPAK) Surface Mount form factor
• Gate-Source Voltage (Vgs): ±20V maximum rating
• Operating Temperature Range: Minimum -55°C to 175°C junction temperature capability
• RoHS Compliance: ROHS3 Compliant status required

Secondary Compatibility Parameters:

• Rds(on) characteristics at specified gate voltage and drain current
• Gate threshold voltage (Vgs(th)) within acceptable switching performance range
• Gate charge (Qg) and input capacitance (Ciss) for circuit timing considerations
• Power dissipation ratings for thermal management validation

Substitute parts AOD409, DMP3028LK3-13, and STD26P3LLH6 meet the primary substitution criteria with variations in secondary parameters that require circuit-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

AOD409 (Alpha & Omega Semiconductor Inc.)

The AOD409 is an Active product from the same manufacturer as the AOD417, providing direct design continuity. It features a higher Vdss rating of 60V, which provides enhanced voltage margin for applications operating near the 30V threshold. The AOD409 maintains equivalent gate-source voltage specifications and identical package form factor. Current availability is significantly higher (250,200 pieces in stock) compared to the AOD417 (67,930 pieces). The AOD409 exhibits slightly higher Rds(on) (40 mOhm vs. 34 mOhm) and substantially higher gate charge (54 nC vs. 16.2 nC), which may impact switching frequency performance in high-speed applications. This substitute is suitable for applications where voltage headroom is beneficial and switching speed is not a primary constraint.

DMP3028LK3-13 (Diodes Incorporated)

The DMP3028LK3-13 is an Active product with identical Vdss rating (30V) and superior continuous drain current capability (27A vs. 25A). This device demonstrates improved Rds(on) performance (25 mOhm vs. 34 mOhm) at lower measurement current (7A vs. 20A), indicating superior on-state efficiency. Gate charge is moderately elevated (22 nC vs. 16.2 nC). The operating temperature range is limited to -55°C to 150°C, which is 25°C lower than the AOD417 maximum junction temperature. Inventory availability is adequate (30,600 pieces). This substitute is appropriate for applications prioritizing low on-state losses and operating within the reduced temperature range.

STD26P3LLH6 (STMicroelectronics)

The STD26P3LLH6 is an Active product featuring DeepGATE™ and STripFET™ VI technology series designation. This device has a significantly reduced continuous drain current rating (12A vs. 25A), making it unsuitable as a direct substitute for applications requiring the full 25A current capacity. The Rds(on) specification (30 mOhm @ 6A, 10V) and gate charge (12 nC @ 4.5V) are favorable, but the current limitation is a critical constraint. This part is applicable only to applications with reduced current requirements below 12A.

Recommendation Summary:

For direct replacement of the AOD417 in applications requiring 25A continuous drain current, the AOD409 is the primary substitute, offering Active product status, equivalent current capability, and enhanced voltage rating. The DMP3028LK3-13 is a secondary option for applications where improved efficiency is prioritized and operating temperature does not exceed 150°C. The STD26P3LLH6 is not suitable for full-current applications but may serve reduced-current variants of the original design.

Frequently Asked Questions (FAQ)

Q: Can the AOD409 directly replace the AOD417 in all applications?

A: The AOD409 is electrically compatible for applications operating at or below 25A continuous drain current and 30V drain-to-source voltage. The higher 60V Vdss rating provides additional voltage margin. However, the increased gate charge (54 nC vs. 16.2 nC) may affect switching frequency performance in high-speed switching circuits. Circuit-level validation is required for applications with strict switching speed requirements.

Q: What is the significance of the different temperature measurement conditions (Ta vs. Tc) in the current ratings?

A: Ta (ambient temperature) and Tc (case temperature) represent different thermal reference points. The AOD417 specifies 25A at Ta (ambient), while AOD409 and DMP3028LK3-13 specify current at Tc (case). Case temperature typically reflects more conservative thermal conditions. Direct current comparison requires consideration of the thermal environment and heat dissipation characteristics of the specific application.

Q: Why does the DMP3028LK3-13 have a lower maximum operating temperature than the AOD417?

A: The DMP3028LK3-13 specifies a maximum junction temperature of 150°C compared to the AOD417's 175°C. This represents a design characteristic of the Diodes Incorporated device. Applications operating near the upper temperature limit of the AOD417 (above 150°C) require thermal re-evaluation if switching to the DMP3028LK3-13.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts are available in TO-252 (DPAK) Surface Mount packaging, which is mechanically and electrically compatible with the AOD417. The package designation may vary slightly (TO-252-3 vs. DPAK), but these refer to the same physical form factor with identical pin configuration and mounting footprint.

Q: What does the higher gate charge in the AOD409 mean for circuit design?

A: Gate charge (Qg) determines the amount of charge required to switch the transistor on or off. The AOD409's higher gate charge (54 nC vs. 16.2 nC) requires more charge transfer from the gate driver, potentially increasing switching time and power dissipation in the gate drive circuit. Applications with current-limited gate drivers or high-frequency switching may experience performance degradation.

Q: Is the STD26P3LLH6 suitable as a substitute for lower-current applications?

A: The STD26P3LLH6 is suitable only for applications where the continuous drain current requirement does not exceed 12A. If the original AOD417 design operates at or above 12A, the STD26P3LLH6 will not provide adequate current capacity and is not a valid substitute.

Q: Do all substitute parts meet the same compliance standards as the AOD417?

A: All substitute parts listed are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99, matching the compliance profile of the AOD417. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, indicating no moisture-related handling restrictions.

Q: What is the impact of different Rds(on) specifications on circuit performance?

A: Rds(on) (on-state resistance) directly affects power dissipation and voltage drop across the transistor during conduction. Lower Rds(on) values reduce heat generation and voltage loss. The DMP3028LK3-13 (25 mOhm) offers superior efficiency compared to the AOD417 (34 mOhm), while the AOD409 (40 mOhm) exhibits slightly higher losses. Selection depends on thermal budget and efficiency requirements of the application.