AOT262L N-Channel MOSFET 60V 20A/140A TO-220 Equivalent & Substitute Parts

Part Overview

The AOT262L is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 60V drain-to-source voltage with continuous drain current of 20A at Ta (ambient temperature) and 140A at Tc (case temperature). This device is packaged in TO-220-3 through-hole configuration and is currently in active product status with 10,465 units in stock.

The AOT262L serves applications requiring moderate voltage and current switching capabilities with low on-state resistance. Equivalent and substitute parts are identified based on matching or exceeding the electrical performance parameters while maintaining compatible packaging and thermal characteristics. Substitutes are necessary when the primary part becomes unavailable, when higher current capacity is required, or when alternative manufacturer sourcing is preferred for supply chain optimization.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	60	V
Continuous Drain Current @ 25°C (Ta)	20	A
Continuous Drain Current @ 25°C (Tc)	140	A
On-State Resistance (Rds On) @ 20A, 10V	3	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	3.2	V
Gate Charge (Qg) @ 10V	115	nC
Input Capacitance (Ciss) @ 30V	9800	pF
Power Dissipation (Tc)	333	W
Operating Temperature Range	-55 to 175	°C
Package Type	TO-220-3	Through Hole
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—

Substitute Part Grouping Explanation

Substitution of the AOT262L is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Must equal or exceed 60V
Continuous Drain Current (Tc): Must equal or exceed 140A
On-State Resistance (Rds On): Must not exceed 3mOhm at rated conditions to maintain thermal performance
Gate Threshold Voltage (Vgs(th)): Must be compatible with 10V drive voltage
Package Type: Must be TO-220-3 through-hole configuration
Operating Temperature Range: Must support -55°C to 175°C
Compliance: Must maintain RoHS3 compliance and REACH unaffected status

Substitution Logic: Parts are grouped into two categories based on voltage rating and current capacity:

60V Rated Substitutes (FDP030N06, PSMN3R0-60PS,127, PSMN4R2-60PLQ): These devices maintain the 60V Vdss specification of the AOT262L while offering equal or higher continuous drain current ratings. These are direct voltage-class equivalents.
75V Rated Substitutes (FDP032N08, IRFB3077PBF): These devices exceed the 60V specification, providing higher voltage margin. They are suitable for applications where voltage headroom is beneficial and do not compromise performance in 60V-rated circuits.
55V Rated Substitute (PHP191NQ06LT,127): This device operates below the 60V specification and is marked as obsolete. It is included for reference only and is not recommended for new designs.

All substitute parts maintain TO-220-3 packaging, through-hole mounting, and compatible gate drive characteristics.

Parameter Comparison

Parameter	AOT262L	FDP030N06	FDP032N08	IRFB3077PBF	PHP191NQ06LT,127	PSMN3R0-60PS,127	PSMN4R2-60PLQ
Manufacturer	Alpha & Omega	onsemi	onsemi	Infineon	Nexperia	Nexperia	Nexperia
Vdss (V)	60	60	75	75	55	60	60
Id (Tc) (A)	140	120	120	120	75	100	130
Rds On (mOhm)	3.0 @ 20A, 10V	3.2 @ 75A, 10V	3.2 @ 75A, 10V	3.3 @ 75A, 10V	3.7 @ 25A, 10V	3.0 @ 25A, 10V	3.9 @ 25A, 10V
Vgs(th) (V)	3.2 @ 250µA	4.5 @ 250µA	4.5 @ 250µA	4.0 @ 250µA	2.0 @ 1mA	4.0 @ 1mA	2.1 @ 1mA
Qg (nC)	115 @ 10V	151 @ 10V	220 @ 10V	220 @ 10V	95.6 @ 5V	130 @ 10V	151 @ 10V
Ciss (pF)	9800 @ 30V	9815 @ 25V	15160 @ 25V	9400 @ 50V	7665 @ 25V	8079 @ 30V	8533 @ 25V
Power Dissipation (W)	333 (Tc)	231 (Tc)	375 (Tc)	370 (Tc)	300 (Tc)	306 (Tc)	263 (Tc)
Operating Temp (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175
Package	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Product Status	Active	Active	Active	Active	Obsolete	Obsolete	Obsolete
RoHS3 Compliance	Yes	Yes	Yes	Yes	Yes	Yes	Yes

Engineering Selection Recommendations

Recommended Active Substitutes:

FDP030N06 (onsemi PowerTrench®): This part is recommended as the primary substitute for the AOT262L. It maintains the 60V Vdss rating, offers 120A continuous drain current (slightly below the AOT262L's 140A), and is currently in active product status with 6,111 units in stock. The on-state resistance of 3.2mOhm is comparable to the AOT262L. This device is suitable for applications where the current requirement does not exceed 120A.

FDP032N08 (onsemi PowerTrench®): This part provides higher voltage margin at 75V Vdss while maintaining 120A continuous drain current. It is in active product status with 1,794 units in stock. The increased gate charge (220nC) and input capacitance (15,160pF) result in slightly slower switching characteristics compared to the AOT262L. This device is appropriate for applications requiring voltage headroom above 60V.

IRFB3077PBF (Infineon HEXFET®): This part is recommended for applications requiring 75V voltage rating with 120A continuous drain current. It is in active product status with the highest inventory availability (36,409 units). The on-state resistance of 3.3mOhm and gate charge of 220nC are comparable to other 75V alternatives. This device offers excellent supply availability.

PSMN3R0-60PS,127 (Nexperia): This part maintains the 60V Vdss specification with 100A continuous drain current and 3mOhm on-state resistance matching the AOT262L. However, it is marked as obsolete and should not be selected for new designs despite current inventory availability (2,280 units).

PSMN4R2-60PLQ (Nexperia): This part maintains the 60V Vdss specification with 130A continuous drain current, approaching the AOT262L's 140A rating. However, it is marked as obsolete and should not be selected for new designs despite current inventory availability (3,211 units).

Not Recommended:

PHP191NQ06LT,127 (Nexperia TrenchMOS™): This part is marked as obsolete and operates at 55V Vdss, below the AOT262L specification. It is not recommended for new designs or as a substitute.

Selection Criteria Summary:

For new designs requiring 60V operation: Select FDP030N06 (active status, 120A rating)
For applications requiring voltage margin above 60V: Select FDP032N08 or IRFB3077PBF (both active status, 75V rating)
For maximum supply availability: Select IRFB3077PBF (36,409 units in stock)
Avoid obsolete parts (PHP191NQ06LT,127, PSMN3R0-60PS,127, PSMN4R2-60PLQ) for new designs

All recommended active substitutes maintain RoHS3 compliance, REACH unaffected status, and compatible operating temperature ranges.

Frequently Asked Questions (FAQ)

Q: Can the FDP030N06 directly replace the AOT262L in all applications?

A: The FDP030N06 is a suitable substitute for applications where continuous drain current does not exceed 120A. The AOT262L is rated for 140A continuous drain current at case temperature. If your application requires the full 140A capability, the FDP030N06 may not be adequate. Verify your actual current requirements before substitution.

Q: What is the difference between the 60V and 75V rated substitutes?

A: The 60V rated substitutes (FDP030N06, PSMN3R0-60PS,127, PSMN4R2-60PLQ) maintain the same voltage specification as the AOT262L. The 75V rated substitutes (FDP032N08, IRFB3077PBF) provide higher voltage margin, allowing operation in circuits with voltage transients or higher supply voltages. Both are electrically compatible with 60V applications, but 75V devices offer additional safety margin.

Q: Why are some substitute parts marked as obsolete?

A: Obsolete parts (PHP191NQ06LT,127, PSMN3R0-60PS,127, PSMN4R2-60PLQ) are no longer actively manufactured or supported by their respective manufacturers. While inventory may still be available from distributors, these parts should not be selected for new designs due to uncertain long-term availability and lack of manufacturer support. Active status parts are recommended for all new applications.

Q: Are all substitute parts compatible with the same PCB layout and thermal management?

A: All substitute parts use the TO-220-3 through-hole package, which is mechanically compatible with the AOT262L. However, thermal management may differ due to variations in power dissipation ratings. The AOT262L dissipates 333W at case temperature, while substitutes range from 231W to 375W. Verify that your thermal design (heatsink, thermal interface material) is adequate for the selected substitute's power dissipation characteristics.

Q: What is the significance of gate charge (Qg) differences between parts?

A: Gate charge affects switching speed and gate drive circuit requirements. The AOT262L has a gate charge of 115nC at 10V. Substitutes range from 95.6nC to 220nC. Higher gate charge requires more energy from the gate driver circuit and results in slower switching transitions. If your application uses a fixed gate drive circuit, verify that it can supply sufficient current for the substitute part's gate charge specification.

Q: Can I use a 75V rated device in a 60V application?

A: Yes. A 75V rated device (FDP032N08, IRFB3077PBF) can be used in a 60V application. The higher voltage rating provides additional safety margin and does not degrade performance. However, the higher gate charge and input capacitance of 75V devices may result in slightly slower switching characteristics compared to 60V optimized devices.

Q: What is the difference between Ta (ambient temperature) and Tc (case temperature) current ratings?

A: The AOT262L is rated for 20A continuous drain current at Ta (ambient temperature) and 140A at Tc (case temperature). The Tc rating assumes the device is mounted on a heatsink at a specified case temperature (typically 25°C). The Ta rating is more conservative and applies when the device operates in free air without a heatsink. For most applications using a heatsink, the Tc rating is the relevant specification.

Q: Are there any gate drive voltage compatibility issues between the AOT262L and its substitutes?

A: The AOT262L and all recommended substitutes are rated for ±20V maximum gate-source voltage and are compatible with standard 10V gate drive circuits. However, gate threshold voltages vary: AOT262L is 3.2V, while substitutes range from 2.0V to 4.5V. Ensure your gate drive circuit provides sufficient voltage margin above the threshold voltage of the selected substitute to guarantee full on-state conduction.

Q: Which substitute offers the best thermal performance?

A: The FDP032N08 offers the highest power dissipation rating at 375W (case temperature), followed by IRFB3077PBF at 370W. These devices are suitable for applications with high power dissipation requirements. The FDP030N06 dissipates 231W, which is lower than the AOT262L's 333W rating. Verify that your thermal design can accommodate the power dissipation of the selected substitute.

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