AOTF2N60 N-Channel MOSFET 600V 2A TO-220-3F Equivalent & Substitute Parts

Part Overview

The AOTF2N60 is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 600V drain-to-source voltage with 2A continuous drain current at 25°C. The device is housed in a TO-220-3F through-hole package and is designed for high-voltage switching applications. The AOTF2N60 is classified as obsolete, making identification of functionally equivalent active alternatives necessary for new designs and ongoing production support.

Substiute Parts

AOTF2N60

Alpha & Omega Semiconductor Inc.In Stock: 5150AOTF2N60 Datasheet

Current PartRFQ

FCPF4300N80Z

Fairchild SemiconductorIn Stock: 1244FCPF4300N80Z Datasheet

MFR RecommendedRFQ

IRFIBC20GPBF

Vishay SiliconixIn Stock: 2813IRFIBC20GPBF Datasheet

MFR RecommendedRFQ

STF2HNK60Z

STMicroelectronicsIn Stock: 15279STF2HNK60Z Datasheet

MFR RecommendedRFQ

STF2LN60K3

STMicroelectronicsIn Stock: 15348STF2LN60K3 Datasheet

MFR RecommendedRFQ

STF3N62K3

STMicroelectronicsIn Stock: 1513STF3N62K3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AOTF2N60 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• FET Type: N-Channel topology
• Technology: MOSFET (Metal Oxide)
• Drain to Source Voltage (Vdss): Minimum 600V (equal or higher voltage rating acceptable)
• Continuous Drain Current (Id) @ 25°C: Minimum 2A (equal or higher current rating acceptable)
• Drive Voltage: 10V gate drive compatibility
• Mounting Type: Through Hole
• Package: TO-220-3 compatible footprint

Secondary Compatibility Parameters:

• Rds On (Max) @ 10V: Comparable on-resistance for thermal performance
• Gate Charge (Qg): Lower values indicate improved switching efficiency
• Vgs(th): Gate threshold voltage within standard range
• Operating Temperature: -55°C to 150°C range
• Compliance: REACH Unaffected, RoHS3 Compliant status

All substitute parts listed meet or exceed the primary electrical specifications of the AOTF2N60 while maintaining through-hole TO-220-3 package compatibility. Substitutes with higher voltage ratings (800V, 620V) or higher current ratings (2.7A) are acceptable as they provide design margin without requiring circuit modification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The STF2HNK60Z and STF2LN60K3 from STMicroelectronics are the closest functional equivalents to the AOTF2N60. Both devices match the critical specifications: 600V Vdss, 2A continuous drain current, 10V gate drive compatibility, and TO-220-3 package. Both are active products with RoHS3 compliance and REACH Unaffected status. The STF2LN60K3 offers improved gate charge characteristics (12 nC versus 11.4 nC) and lower input capacitance (235 pF), providing superior switching performance. Both devices are available in high inventory quantities.

Secondary Substitutes (Acceptable with Design Margin):

The STF3N62K3 provides higher current capability (2.7A) and improved on-resistance (2.5 Ohm), offering design margin for thermal performance. The 620V rating exceeds the 600V requirement. This device is suitable for applications where enhanced current handling is beneficial.

The IRFIBC20GPBF from Vishay Siliconix matches the 600V and 2A specifications with comparable on-resistance. The isolated tab variant provides additional thermal management options. This device is active and RoHS3 compliant with high inventory availability.

Alternative with Higher Voltage Rating:

The FCPF4300N80Z from Fairchild provides 800V Vdss with 1.6A continuous current. This device is suitable for applications requiring higher voltage margin but with slightly reduced current capacity. The lower gate charge (8.8 nC) and improved switching efficiency may offset the reduced current rating in certain applications. This device is active and available.

Compliance and Availability:

All substitute parts are active products with REACH Unaffected status. The STMicroelectronics devices (STF2HNK60Z, STF2LN60K3, STF3N62K3) and IRFIBC20GPBF are RoHS3 compliant. Inventory availability is strong across all substitutes, with STF2LN60K3 and STF2HNK60Z offering the highest stock levels (15,226 and 15,326 units respectively).

Frequently Asked Questions (FAQ)

Q: Can the STF2HNK60Z directly replace the AOTF2N60 without circuit modification?

A: Yes. The STF2HNK60Z matches the critical electrical specifications: 600V Vdss, 2A continuous drain current, 10V gate drive, and TO-220-3 package. The device is pin-compatible and requires no circuit changes. Both devices operate across the -55°C to 150°C temperature range.

Q: What is the difference between STF2HNK60Z and STF2LN60K3?

A: Both devices are functionally equivalent with 600V, 2A ratings and TO-220-3 packages. The STF2LN60K3 offers lower gate charge (12 nC versus 15 nC) and reduced input capacitance (235 pF versus 280 pF), resulting in faster switching transitions. The STF2LN60K3 is part of the SuperMESH3™ series, representing a newer generation. Both are active products with comparable availability.

Q: Why does the FCPF4300N80Z have lower current rating (1.6A) than the AOTF2N60 (2A)?

A: The FCPF4300N80Z is rated for 800V, which is 200V higher than the AOTF2N60. The reduced current rating reflects the trade-off between voltage and current capability in MOSFET design. This device is suitable for applications where higher voltage margin is required, even with reduced current capacity.

Q: Is the IRFIBC20GPBF with isolated tab compatible with standard TO-220-3 footprints?

A: Yes. The isolated tab is a thermal management feature that does not affect electrical compatibility. The device maintains standard TO-220-3 pin configuration and can be mounted on standard footprints. The isolated tab provides improved thermal isolation for applications requiring enhanced heat dissipation.

Q: Can the STF3N62K3 be used in place of the AOTF2N60?

A: Yes. The STF3N62K3 exceeds the AOTF2N60 specifications with 620V Vdss and 2.7A continuous current. The significantly lower on-resistance (2.5 Ohm versus 4.4 Ohm) provides improved thermal performance. This device is suitable for applications where enhanced current handling and reduced power dissipation are beneficial. No circuit modification is required.

Q: What is the significance of gate charge (Qg) differences among the substitutes?

A: Gate charge determines the energy required to switch the MOSFET on and off. Lower gate charge values (FCPF4300N80Z at 8.8 nC, STF2LN60K3 at 12 nC) result in faster switching transitions and reduced driver power consumption. Higher values (IRFIBC20GPBF at 18 nC) may require slightly more driver capability but remain compatible with standard 10V gate drive circuits.

Q: Are all substitute parts REACH compliant?

A: Yes. All listed substitute parts have REACH Unaffected status, indicating compliance with REACH regulations. The STMicroelectronics devices and IRFIBC20GPBF are additionally RoHS3 compliant, meeting environmental and hazardous substance restrictions.

Q: What is the operating temperature range for each substitute?

A: The AOTF2N60, FCPF4300N80Z, IRFIBC20GPBF, and STF2HNK60Z all operate across -55°C to 150°C (TJ). The STF2LN60K3 and STF3N62K3 are specified to 150°C maximum, which covers the upper range of the original device. For applications requiring the full -55°C lower limit, verify specific device datasheets.

Q: Which substitute offers the best thermal performance?

A: The STF3N62K3 provides the lowest on-resistance (2.5 Ohm @ 1.4A, 10V) and highest current rating (2.7A), resulting in the lowest power dissipation for a given load. The STF2LN60K3 offers improved efficiency through lower gate charge and input capacitance, reducing switching losses. Selection depends on whether conduction losses or switching losses dominate the application.