AOD496 N-Channel MOSFET 30V 62A Equivalent & Substitute Parts

Part Overview

The AOD496 is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 30V drain-to-source voltage with 62A continuous drain current in a Surface Mount TO-252 (DPAK) package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and component sourcing.

The AOD496 serves in applications requiring moderate-to-high current switching at 30V logic levels, including DC-DC converters, motor control circuits, and power distribution systems. Obsolescence requires identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Drain-to-Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	62	A (Tc)
On-State Resistance (Rds On Max) @ Id, Vgs	9.5 mOhm @ 20A, 10V	—
Gate Threshold Voltage (Vgs(th) Max) @ Id	2.5	V @ 250µA
Gate Charge (Qg Max) @ Vgs	23	nC @ 10V
Maximum Gate Voltage (Vgs Max)	±20	V
Input Capacitance (Ciss Max) @ Vds	1200	pF @ 15V
Power Dissipation (Max)	2.5 (Ta), 62.5 (Tc)	W
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-252-3 (DPAK)	—
Mounting Type	Surface Mount	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the AOD496 is determined by strict equivalence across the following critical parameters:

Voltage Rating: All substitute parts must maintain 30V Vdss rating to ensure safe operation in the same circuit topology without derating.

Current Capability: Substitute parts must support continuous drain current at or above 62A (Tc) to maintain thermal performance and current handling capacity equivalent to the original design.

Package Compatibility: All substitutes use TO-252-3 (DPAK) surface mount packaging with identical lead configuration, enabling direct PCB footprint compatibility without layout modification.

Gate Drive Characteristics: Substitute parts operate within the same gate voltage range (±20V or compatible subset) and maintain threshold voltage specifications compatible with standard logic-level gate drivers.

Thermal Performance: Substitute parts must support power dissipation levels sufficient for the intended application thermal environment.

Technology Platform: All substitutes employ Metal Oxide Semiconductor (MOSFET) technology with N-Channel configuration, ensuring functional equivalence in switching applications.

The five substitute parts listed below meet these criteria with varying levels of performance enhancement and product status.

Parameter Comparison

Parameter	AOD496	BUK9214-30A,118	DMN3010LK3-13	FDD8880	NTD4302T4G	STD100N3LF3
Manufacturer	Alpha & Omega Semiconductor	Nexperia USA Inc.	Diodes Incorporated	onsemi	onsemi	STMicroelectronics
Vdss (V)	30	30	30	30	30	30
Id @ 25°C (A, Tc)	62	63	43	58	68	80
Rds On Max @ Id, Vgs (mOhm)	9.5 @ 20A, 10V	12 @ 25A, 10V	9.5 @ 18A, 10V	9 @ 35A, 10V	10 @ 20A, 10V	5.5 @ 40A, 10V
Vgs(th) Max @ Id (V)	2.5 @ 250µA	2 @ 1mA	2.5 @ 250µA	2.5 @ 250µA	3 @ 250µA	2.5 @ 250µA
Qg Max @ Vgs (nC)	23 @ 10V	31 @ 5V	37 @ 10V	31 @ 10V	80 @ 10V	27 @ 5V
Vgs Max (V)	±20	±15	±20	±20	±20	±20
Ciss Max @ Vds (pF)	1200 @ 15V	2317 @ 25V	2075 @ 15V	1260 @ 15V	2400 @ 24V	2060 @ 25V
Power Dissipation Max (W)	2.5 (Ta), 62.5 (Tc)	107 (Tc)	1.6 (Ta)	55 (Tc)	1.04 (Ta), 75 (Tc)	110 (Tc)
Operating Temperature (°C)	-55 to 175	-55 to 175	-55 to 150	-55 to 175	-55 to 150	-55 to 175
Package	TO-252-3 (DPAK)	DPAK	TO-252-3	TO-252AA	DPAK	DPAK
Product Status	Obsolete	Obsolete	Active	Active	Obsolete	Obsolete
RoHS Status	Not specified	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	Not specified	AEC-Q101	Not specified	Not specified	Not specified	Not specified

Engineering Selection Recommendations

Primary Substitute: FDD8880 (onsemi)

The FDD8880 is the recommended primary substitute for new designs and production continuity. This device maintains 30V Vdss rating with 58A continuous drain current, meeting the AOD496 current specification. The FDD8880 is active in production status, ensuring long-term availability. It features ROHS3 compliance and operates across the full -55°C to 175°C temperature range. The PowerTrench® technology platform delivers superior on-state resistance (9 mOhm @ 35A, 10V) and thermal performance (55W Tc), reducing power dissipation in high-current applications. The TO-252AA package maintains direct PCB compatibility with the original AOD496 footprint.

Secondary Substitute: STD100N3LF3 (STMicroelectronics)

The STD100N3LF3 provides enhanced current capability at 80A (Tc), exceeding the AOD496 specification by 29%. This device is suitable for applications requiring performance margin or thermal headroom. The STripFET™ II technology delivers the lowest on-state resistance (5.5 mOhm @ 40A, 10V) among all substitutes, minimizing conduction losses. ROHS3 compliance and full temperature range operation (-55°C to 175°C) are supported. Product status is obsolete; however, inventory availability is confirmed at 15,465 units. The DPAK package ensures direct footprint compatibility.

Tertiary Substitute: BUK9214-30A,118 (Nexperia USA Inc.)

The BUK9214-30A,118 is an automotive-grade alternative rated for 63A continuous drain current with AEC-Q101 qualification. This device is suitable for automotive and mission-critical applications requiring formal qualification documentation. The TrenchMOS™ platform supports 107W power dissipation (Tc), providing excellent thermal performance. Operating temperature range extends to -55°C to 175°C. Gate voltage rating is limited to ±15V, requiring verification against existing gate drive circuits. Product status is obsolete; inventory availability is 18,285 units.

Alternative Substitute: NTD4302T4G (onsemi)

The NTD4302T4G delivers the highest current capability at 68A (Tc), providing 10% margin above the AOD496 specification. This device supports 75W power dissipation (Tc) and operates across -55°C to 150°C. ROHS3 compliance is confirmed. Product status is obsolete with 20,900 units in inventory. Gate charge is elevated at 80 nC @ 10V, requiring verification of gate driver capability in high-frequency switching applications.

Lower-Current Alternative: DMN3010LK3-13 (Diodes Incorporated)

The DMN3010LK3-13 is the only active-status substitute, rated for 43A continuous drain current (Tc). This device is suitable for applications with reduced current requirements or as a long-term production solution. Active product status ensures indefinite availability and design support. ROHS3 compliance and -55°C to 150°C operating range are supported. The lower current rating (43A) represents a 31% reduction from the AOD496 specification; application thermal analysis is required to confirm suitability.

Frequently Asked Questions (FAQ)

Q: Can the FDD8880 directly replace the AOD496 without PCB modification?

A: Yes. Both devices use TO-252-3 (DPAK) surface mount packaging with identical lead configuration and pin assignment. Direct PCB footprint compatibility is maintained. No layout changes are required.

Q: What is the primary difference between the AOD496 and its substitutes?

A: The AOD496 is obsolete, while FDD8880 and DMN3010LK3-13 maintain active production status. Substitute parts offer equivalent or enhanced electrical performance across voltage, current, and thermal specifications. All maintain the same package type and gate drive compatibility.

Q: Is the BUK9214-30A,118 suitable for automotive applications?

A: Yes. The BUK9214-30A,118 carries AEC-Q101 automotive qualification, making it suitable for automotive and mission-critical applications. The AOD496 does not specify automotive qualification.

Q: What is the impact of higher gate charge in the NTD4302T4G?

A: The NTD4302T4G exhibits 80 nC gate charge @ 10V, compared to 23 nC in the AOD496. Higher gate charge increases gate driver current requirements and switching losses in high-frequency applications. Gate driver capability must be verified before substitution in switching frequencies above 100 kHz.

Q: Can the DMN3010LK3-13 be used in all AOD496 applications?

A: The DMN3010LK3-13 is rated for 43A continuous drain current, representing a 31% reduction from the AOD496 specification of 62A. Thermal analysis of the specific application is required to confirm adequate current margin. This device is suitable for applications with lower current demands or where thermal management is enhanced.

Q: What is the temperature operating range difference between substitutes?

A: The AOD496, FDD8880, BUK9214-30A,118, and STD100N3LF3 support -55°C to 175°C operation. The NTD4302T4G and DMN3010LK3-13 are limited to -55°C to 150°C. Applications requiring operation above 150°C must use FDD8880, BUK9214-30A,118, or STD100N3LF3.

Q: Are all substitutes RoHS3 compliant?

A: FDD8880, DMN3010LK3-13, NTD4302T4G, and STD100N3LF3 are confirmed ROHS3 compliant. The AOD496 and BUK9214-30A,118 do not specify RoHS status in the provided data.

Q: Which substitute offers the lowest on-state resistance?

A: The STD100N3LF3 provides the lowest on-state resistance at 5.5 mOhm @ 40A, 10V. This reduces conduction losses and heat generation in high-current applications. The FDD8880 offers competitive performance at 9 mOhm @ 35A, 10V.

Q: What is the significance of the TO-252AA package variant in the FDD8880?

A: The TO-252AA is a variant of the standard TO-252-3 (DPAK) package with enhanced thermal characteristics. It maintains identical electrical pin configuration and PCB footprint compatibility while providing improved heat dissipation through optimized lead frame design.

Q: Can gate voltage limits affect substitution decisions?

A: Yes. The BUK9214-30A,118 is limited to ±15V gate voltage, compared to ±20V in the AOD496 and most substitutes. Existing gate drive circuits must be verified to operate within ±15V limits before substituting with the BUK9214-30A,118.

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