AOW482 N-Channel MOSFET 80V 11A/105A TO-262 Equivalent & Substitute Parts

Part Overview

The AOW482 is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 80V drain-to-source voltage with continuous drain current of 11A at Ta (ambient temperature) and 105A at Tc (case temperature). This device is housed in a TO-262 package and is designed for through-hole mounting applications requiring moderate to high current switching capability.

The AOW482 maintains Active product status. Identification of equivalent and substitute parts becomes necessary when managing inventory constraints, addressing supply chain availability, or standardizing component selections across product lines while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	80	V
Continuous Drain Current @ 25°C (Ta)	11	A
Continuous Drain Current @ 25°C (Tc)	105	A
RDS(on) Max @ 20A, 10V	7.2	mOhm
Gate Threshold Voltage (Vgs(th)) Max @ 250µA	3.7	V
Gate Charge (Qg) Max @ 10V	81	nC
Input Capacitance (Ciss) Max @ 40V	4870	pF
Power Dissipation Max (Ta)	2.1	W
Power Dissipation Max (Tc)	333	W
Operating Temperature Range	-55 to 175	°C
Package Type	TO-262-3	-
Mounting Type	Through Hole	-

Substitute Part Grouping Explanation

Substitution of the AOW482 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Criteria:

Drain-to-Source Voltage (Vdss) must equal or exceed 80V
Continuous drain current rating must support the application's current requirements
RDS(on) characteristics must be compatible with switching loss and thermal management requirements
Gate threshold voltage and gate charge must be compatible with existing gate drive circuitry
Operating temperature range must encompass -55°C to 175°C

Mechanical Compatibility Criteria:

Package type must be TO-262-3 (Long Leads, I2PAK, TO-262AA)
Mounting type must be Through Hole
Pin configuration must be identical

Compliance Criteria:

RoHS3 compliance required
Moisture Sensitivity Level (MSL) of 1 (Unlimited) required
REACH Unaffected status required

The substitute part IPI80N08S406AKSA1 meets these criteria with matching Vdss (80V), compatible package (TO-262-3), identical mounting type (Through Hole), and equivalent compliance certifications. The substitute part exhibits lower RDS(on) (5.8mOhm vs. 7.2mOhm) and lower gate charge (70nC vs. 81nC), representing improved electrical performance within the same voltage and package class.

Parameter Comparison

Parameter	AOW482 (Main Part)	IPI80N08S406AKSA1 (Substitute)	Unit
Manufacturer	Alpha & Omega Semiconductor Inc.	Infineon Technologies	-
FET Type	N-Channel	N-Channel	-
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	-
Drain-to-Source Voltage (Vdss)	80	80	V
Continuous Drain Current (Tc)	105	80	A
RDS(on) Max	7.2 @ 20A, 10V	5.8 @ 80A, 10V	mOhm
Gate Threshold Voltage (Vgs(th)) Max	3.7 @ 250µA	4.0 @ 90µA	V
Gate Charge (Qg) Max @ 10V	81	70	nC
Input Capacitance (Ciss) Max	4870 @ 40V	4800 @ 25V	pF
Power Dissipation Max (Tc)	333	150	W
Operating Temperature Range	-55 to 175	-55 to 175	°C
Package / Case	TO-262-3 Long Leads, I2PAK, TO-262AA	TO-262-3 Long Leads, I2PAK, TO-262AA	-
Mounting Type	Through Hole	Through Hole	-
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	-
MSL	1 (Unlimited)	1 (Unlimited)	-
REACH Status	REACH Unaffected	REACH Unaffected	-
Product Status	Active	Obsolete	-

Engineering Selection Recommendations

Primary Selection: AOW482

The AOW482 is the recommended primary component selection. It maintains Active product status, ensuring long-term availability and continued manufacturer support. The device is manufactured by Alpha & Omega Semiconductor Inc. and carries full RoHS3 compliance with MSL 1 (Unlimited) rating, suitable for standard manufacturing environments without moisture sensitivity constraints.

Substitute Selection: IPI80N08S406AKSA1

The IPI80N08S406AKSA1 manufactured by Infineon Technologies serves as a direct electrical and mechanical substitute. Both devices share identical Vdss (80V), matching TO-262-3 package configuration, and equivalent through-hole mounting specifications. Both maintain RoHS3 compliance and MSL 1 (Unlimited) ratings.

The substitute part exhibits improved electrical characteristics with lower RDS(on) (5.8mOhm vs. 7.2mOhm) and reduced gate charge (70nC vs. 81nC), resulting in lower switching losses and reduced gate drive requirements. The substitute part carries Automotive grade qualification (AEC-Q101), indicating suitability for automotive applications.

Substitution Constraints:

The IPI80N08S406AKSA1 carries Obsolete product status. Substitution should be evaluated based on long-term supply chain requirements and inventory planning. The substitute part's continuous drain current rating at Tc (80A) is lower than the main part (105A), requiring circuit-level current capacity verification for applications operating at maximum rated current.

Frequently Asked Questions (FAQ)

Q: Can the IPI80N08S406AKSA1 directly replace the AOW482 in existing designs?

A: Direct replacement is possible from electrical and mechanical perspectives. Both devices share identical Vdss (80V), matching TO-262-3 package configuration, and equivalent pin assignments for through-hole mounting. Gate drive circuitry compatibility is maintained due to similar gate threshold voltage and gate charge characteristics. However, the substitute part's lower continuous drain current rating (80A vs. 105A at Tc) requires verification that circuit current requirements do not exceed the substitute part's rating.

Q: What are the key electrical differences between these parts?

A: The primary electrical differences are RDS(on) and gate charge. The IPI80N08S406AKSA1 exhibits lower RDS(on) (5.8mOhm vs. 7.2mOhm) and lower gate charge (70nC vs. 81nC), resulting in reduced conduction losses and faster switching response. The substitute part's continuous drain current rating is lower (80A vs. 105A at Tc). Input capacitance values are equivalent (approximately 4800-4870pF).

Q: Are there package compatibility concerns?

A: No package compatibility concerns exist. Both the AOW482 and IPI80N08S406AKSA1 utilize identical TO-262-3 package configuration with long leads suitable for through-hole PCB mounting. Pin assignments and mechanical dimensions are equivalent.

Q: What compliance certifications apply to both parts?

A: Both parts maintain RoHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and REACH Unaffected status. The substitute part carries additional Automotive grade qualification (AEC-Q101), indicating enhanced reliability for automotive applications.

Q: Should product status differences affect substitution decisions?

A: Product status differences should be considered in long-term supply chain planning. The AOW482 maintains Active status, ensuring continued manufacturer support and availability. The IPI80N08S406AKSA1 carries Obsolete status, indicating limited future availability. Substitution decisions should account for production volume requirements and inventory planning horizons.

Q: Are gate drive circuit modifications required for substitution?

A: Gate drive circuit modifications are not required. Both parts maintain compatible gate threshold voltage characteristics (3.7V vs. 4.0V) and similar gate charge values (81nC vs. 70nC). Existing gate drive circuitry designed for the AOW482 will operate the IPI80N08S406AKSA1 without modification.

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