AO4828L MOSFET Equivalent & Substitute Parts

Part Overview

The AO4828L is a dual N-channel MOSFET array manufactured by Alpha & Omega Semiconductor Inc., rated for 60V drain-to-source voltage with 2W maximum power dissipation in an 8-SOIC surface mount package. This device features logic level gate operation and is designed for general-purpose switching applications.

The AO4828L carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this component.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	60	V
Configuration	2 N-Channel (Dual)	—
Rds On (Max) @ Id, Vgs	56 @ 4.5A, 10V	mOhm
Vgs(th) (Max) @ Id	3 @ 250µA	V
Gate Charge (Qg) (Max) @ Vgs	10.5 @ 10V	nC
Input Capacitance (Ciss) (Max) @ Vds	540 @ 30V	pF
Power - Max	2	W
Operating Temperature Range	-55 to 150	°C (TJ)
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the AO4828L are selected based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

Primary Compatibility Criteria:

Drain to Source Voltage (Vdss): 60V or higher
Configuration: Dual N-channel (2 N-Channel)
Package: 8-SOIC surface mount form factor
On-state resistance (Rds On): Within acceptable operating range for the application
Gate threshold voltage (Vgs(th)): Logic level operation capability
Operating temperature range: Minimum -55°C to 150°C

Substitution Categories:

Direct Equivalent (Identical Specifications): The AO4828 represents the active production equivalent of the obsolete AO4828L, maintaining identical electrical specifications and packaging.

Enhanced Performance Substitute: The DMNH6042SSD-13 provides improved continuous drain current (16.7A vs. unspecified), lower on-state resistance (50mOhm vs. 56mOhm), and extended operating temperature range (-55°C to 175°C). This device qualifies as an upgrade option for applications requiring higher current handling or automotive-grade reliability (AEC-Q101).

Compatible Alternatives: The STS4DNF60L and IRF7341GTRPBF maintain the 60V Vdss rating and 8-SOIC package, with comparable on-state resistance and gate charge characteristics suitable for equivalent circuit operation.

Parameter Comparison

Parameter	AO4828L (Main)	AO4828	DMNH6042SSD-13	IRF7341GTRPBF	STS4DNF60L
Manufacturer	Alpha & Omega	Alpha & Omega	Diodes Inc.	Infineon	STMicroelectronics
Product Status	Obsolete	Active	Active	Active	Active
Vdss (V)	60	60	60	55	60
Configuration	2 N-Channel	2 N-Channel	2 N-Channel	2 N-Channel	2 N-Channel
Id @ 25°C (A)	—	—	16.7 (Tc)	5.1	4
Rds On (Max) @ Id, Vgs (mOhm)	56 @ 4.5A, 10V	56 @ 4.5A, 10V	50 @ 5.1A, 10V	50 @ 5.1A, 10V	55 @ 2A, 10V
Vgs(th) (Max) @ Id (V)	3 @ 250µA	3 @ 250µA	3 @ 250µA	1 @ 250µA (Min)	2.5 @ 250µA
Qg (Max) @ Vgs (nC)	10.5 @ 10V	10.5 @ 10V	4.2 @ 4.5V	44 @ 10V	15 @ 4.5V
Ciss (Max) @ Vds (pF)	540 @ 30V	540 @ 30V	584 @ 25V	780 @ 25V	1030 @ 25V
Power - Max (W)	2	2	2.1	2.4	2
Operating Temperature (°C)	-55 to 150	-55 to 150	-55 to 175	-55 to 175	-55 to 150
Package	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
AEC-Q101 Qualified	—	—	Yes	—	—

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Choice):

The AO4828 is the active production equivalent of the obsolete AO4828L. This part maintains identical electrical specifications, gate charge characteristics, and input capacitance values. The AO4828 carries active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). This part is suitable for all applications previously designed with the AO4828L.

For Enhanced Performance Applications:

The DMNH6042SSD-13 (Diodes Incorporated) provides superior performance characteristics including higher continuous drain current (16.7A), lower on-state resistance (50mOhm), and extended operating temperature range to 175°C. This device carries AEC-Q101 automotive qualification and ROHS3 compliance. Selection of this part is appropriate for applications requiring higher current capacity or automotive-grade reliability assurance.

For Voltage-Constrained Applications:

The IRF7341GTRPBF (Infineon Technologies) operates at 55V Vdss, which is 5V lower than the AO4828L specification. This part is suitable only for applications where the actual operating voltage does not exceed 55V. The IRF7341GTRPBF features lower gate threshold voltage (1V minimum) and extended operating temperature range to 175°C, with ROHS3 compliance.

For Logic-Level Gate Applications:

The STS4DNF60L (STMicroelectronics) maintains the 60V Vdss rating and logic level gate feature of the AO4828L. This part carries ROHS3 compliance and operates across the -55°C to 150°C temperature range. Gate charge and input capacitance values are higher than the main part, which may affect switching speed in high-frequency applications.

Frequently Asked Questions (FAQ)

Q: Can the AO4828 be used as a direct replacement for the AO4828L?

A: Yes. The AO4828 is the active production equivalent with identical electrical specifications, including Vdss (60V), on-state resistance (56mOhm @ 4.5A, 10V), gate charge (10.5nC @ 10V), and input capacitance (540pF @ 30V). Both devices use the 8-SOIC package and operate across -55°C to 150°C. The primary difference is product status: AO4828L is obsolete while AO4828 is active production.

Q: What is the key difference between the AO4828 and DMNH6042SSD-13?

A: The DMNH6042SSD-13 provides enhanced performance with higher continuous drain current (16.7A vs. unspecified), lower on-state resistance (50mOhm vs. 56mOhm), and extended operating temperature range (-55°C to 175°C vs. -55°C to 150°C). The DMNH6042SSD-13 also carries AEC-Q101 automotive qualification. Both maintain 60V Vdss and 8-SOIC packaging. The DMNH6042SSD-13 is suitable for applications requiring higher current handling or automotive-grade reliability.

Q: Is the IRF7341GTRPBF compatible with the AO4828L?

A: The IRF7341GTRPBF is compatible for applications where the actual operating voltage does not exceed 55V. This device has a lower Vdss rating (55V vs. 60V). The IRF7341GTRPBF features lower gate threshold voltage (1V minimum vs. 3V maximum) and higher gate charge (44nC @ 10V vs. 10.5nC @ 10V). Both devices use 8-SOIC packaging and operate to 175°C. Substitution is appropriate only when voltage headroom permits.

Q: Why does the STS4DNF60L have higher input capacitance than the AO4828L?

A: The STS4DNF60L exhibits higher input capacitance (1030pF @ 25V vs. 540pF @ 30V) due to different semiconductor design and process technology. This higher capacitance may result in slower switching transitions and increased gate drive requirements in high-frequency applications. The STS4DNF60L maintains the 60V Vdss rating, logic level gate feature, and 8-SOIC package of the AO4828L.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The AO4828, DMNH6042SSD-13, IRF7341GTRPBF, and STS4DNF60L all carry ROHS3 compliance certification. The original AO4828L does not specify RoHS status. All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can these parts be used interchangeably in the same PCB layout?

A: Yes, all substitute parts use the 8-SOIC (0.154", 3.90mm Width) package and are compatible with the same PCB footprint. Pin configuration and spacing are identical across all listed parts. No PCB layout modifications are required for substitution.

Q: Which substitute part should be selected for new designs?

A: For new designs, the AO4828 is the recommended choice as the active production equivalent. For applications requiring higher current capacity or automotive qualification, the DMNH6042SSD-13 is appropriate. For applications with voltage constraints below 55V, the IRF7341GTRPBF is suitable. The STS4DNF60L is appropriate for applications where the higher input capacitance does not impact performance.

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