AOD480 Equivalent & Substitute Parts

Part Overview

The AOD480 is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 30V drain-to-source voltage with 25A continuous drain current in a TO-252 (DPAK) surface mount package. This device is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original component is no longer in active production or has limited availability for new procurement.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—
Drain to Source Voltage (Vdss)	30	V
Current - Continuous Drain (Id) @ 25°C	25	A (Tc)
Rds On (Max) @ Id, Vgs	23	mOhm @ 20A, 10V
Vgs(th) (Max) @ Id	2.5	V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	14	nC @ 10V
Vgs (Max)	±20	V
Input Capacitance (Ciss) (Max) @ Vds	820	pF @ 15V
Power Dissipation (Max)	2.5 (Ta), 21 (Tc)	W
Operating Temperature	-55 to 175	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the AOD480 are identified based on the following critical parameters that determine functional compatibility:

Voltage Rating Compatibility: All substitute parts maintain the same 30V Vdss rating, ensuring equivalent voltage stress capability in the application circuit.

Package Compatibility: All substitute parts use the TO-252-3 (DPAK) surface mount package with identical pinout and thermal characteristics, allowing direct board-level replacement without layout modification.

Technology Alignment: All substitute parts are N-Channel MOSFETs using metal oxide technology, maintaining identical switching behavior and gate drive requirements.

Current Handling: Substitute parts operate at reduced continuous drain current ratings (10A and 9.78A) compared to the AOD480 (25A). These substitutes are suitable for applications where the circuit current demand does not exceed the substitute part's rating.

Gate Drive Voltage: All parts share compatible gate drive voltage ranges (±20V to ±25V maximum), ensuring compatibility with existing gate drive circuitry.

Thermal and Compliance: All substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and REACH unaffected status, matching the original part's environmental and regulatory requirements.

Parameter Comparison

Parameter	AOD480	DMG4800LK3-13	DMN3024LK3-13	Unit
Manufacturer	Alpha & Omega Semiconductor Inc.	Diodes Incorporated	Diodes Incorporated	—
Product Status	Not For New Designs	Active	Active	—
FET Type	N-Channel	N-Channel	N-Channel	—
Drain to Source Voltage (Vdss)	30	30	30	V
Current - Continuous Drain (Id) @ 25°C	25 (Tc)	10 (Ta)	9.78 (Ta)	A
Rds On (Max) @ Id, Vgs	23 @ 20A, 10V	17 @ 9A, 10V	24 @ 7A, 10V	mOhm
Vgs(th) (Max) @ Id	2.5 @ 250µA	1.6 @ 250µA	3 @ 250µA	V
Gate Charge (Qg) (Max) @ Vgs	14 @ 10V	8.7 @ 5V	12.9 @ 10V	nC
Vgs (Max)	±20	±25	±20	V
Input Capacitance (Ciss) (Max) @ Vds	820 @ 15V	798 @ 10V	608 @ 15V	pF
Power Dissipation (Max)	2.5 (Ta), 21 (Tc)	1.71 (Ta)	2.17 (Ta)	W
Operating Temperature	-55 to 175	-55 to 150	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	—
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—

Engineering Selection Recommendations

For Active Production and New Designs: The DMG4800LK3-13 and DMN3024LK3-13, both manufactured by Diodes Incorporated, are classified as Active products and are suitable for new design implementations. Both parts maintain full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

For Legacy System Support: The AOD480 remains available in inventory (19,688 pcs) for immediate replacement in existing systems. However, due to its "Not For New Designs" status, transition to an active substitute part is recommended for long-term supply chain stability.

Current Rating Considerations: Selection between substitute parts depends on application current requirements. The DMG4800LK3-13 supports 10A continuous drain current, while the DMN3024LK3-13 supports 9.78A. Applications requiring the full 25A rating of the original AOD480 cannot be directly substituted with these parts and require alternative solutions.

Temperature Range: Both substitute parts operate to 150°C maximum junction temperature, compared to the AOD480's 175°C rating. Applications operating near the upper temperature limit require thermal analysis to confirm substitute part suitability.

Packaging and Compliance: All three parts share identical TO-252-3 (DPAK) packaging, MSL Level 1 moisture sensitivity, and equivalent regulatory compliance, enabling direct board-level substitution where current ratings are acceptable.

Frequently Asked Questions (FAQ)

Q: Can the DMG4800LK3-13 or DMN3024LK3-13 directly replace the AOD480 in all applications?

A: Direct replacement is possible only in applications where the circuit current demand does not exceed 10A (DMG4800LK3-13) or 9.78A (DMN3024LK3-13). The AOD480 is rated for 25A continuous drain current; applications requiring this full current capacity cannot use these substitute parts.

Q: Are the substitute parts compatible with the existing PCB layout?

A: Yes. Both substitute parts use the TO-252-3 (DPAK) package with identical pinout and thermal tab configuration as the AOD480, allowing direct board-level replacement without layout modification.

Q: What is the difference between the two substitute parts?

A: Both DMG4800LK3-13 and DMN3024LK3-13 are manufactured by Diodes Incorporated and share the same 30V voltage rating and TO-252-3 package. The DMG4800LK3-13 is rated for 10A continuous drain current with 17mOhm Rds(on), while the DMN3024LK3-13 is rated for 9.78A with 24mOhm Rds(on). Selection depends on specific current and on-resistance requirements of the application.

Q: Do the substitute parts meet the same regulatory and environmental standards?

A: Yes. Both substitute parts are RoHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the AOD480.

Q: What is the maximum junction temperature for the substitute parts?

A: Both substitute parts operate to a maximum junction temperature of 150°C, compared to the AOD480's 175°C rating. Applications operating near the upper temperature limit require thermal analysis to confirm substitute part suitability.

Q: Are the substitute parts available in the same packaging format (Tape & Reel)?

A: The DMG4800LK3-13 is available in Cut Tape (CT) and Digi-Reel® packaging, while the DMN3024LK3-13 is available in Tape & Reel (TR) format. Packaging format should be verified against procurement requirements.

Q: What is the gate charge difference between the AOD480 and substitute parts?

A: The AOD480 has a gate charge of 14nC @ 10V. The DMG4800LK3-13 has 8.7nC @ 5V, and the DMN3024LK3-13 has 12.9nC @ 10V. Lower gate charge reduces gate drive power requirements and switching losses in high-frequency applications.

Q: Can I use a substitute part in a high-temperature application?

A: The substitute parts are rated to 150°C junction temperature, 25°C lower than the AOD480's 175°C rating. Applications requiring operation above 150°C require alternative parts or thermal management modifications to ensure the substitute part operates within its specified temperature range.

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