AO7407 MOSFET P-Channel 20V 1.2A SC70-3 Equivalent & Substitute Parts

Part Overview

The AO7407 is an active P-Channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET) manufactured by Alpha & Omega Semiconductor Inc. This surface mount device is rated for 20V drain-to-source voltage with 1.2A continuous drain current and 630mW power dissipation. The component is housed in an SC-70-3 (SOT-323) package and is ROHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining the same package form factor and compliance certifications. Alternative devices may be required due to inventory availability, supply chain considerations, or design optimization within acceptable electrical tolerances.

Substiute Parts

AO7407

Alpha & Omega Semiconductor Inc.In Stock: 45149AO7407 Datasheet

Current PartRFQ

NTS2101PT1G

onsemiIn Stock: 125132NTS2101PT1G Datasheet

MFR RecommendedRFQ

NTS4101PT1G

onsemiIn Stock: 65437NTS4101PT1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AO7407 is determined by the following critical parameters:

Primary Substitution Criteria:

• FET Type: P-Channel topology
• Package Form Factor: SC-70-3 (SOT-323) surface mount
• Drain to Source Voltage (Vdss): Minimum 20V rating required
• Continuous Drain Current (Id): Minimum 1.2A at 25°C
• Operating Temperature Range: -55°C to 150°C (TJ)
• Compliance: ROHS3 compliant, MSL 1 rating

Secondary Compatibility Parameters:

• Gate-Source Voltage (Vgs Max): ±8V maximum
• On-State Resistance (Rds On): Performance within acceptable thermal limits
• Power Dissipation: Thermal capability sufficient for application requirements

The NTS2101PT1G and NTS4101PT1G are identified as substitute parts based on matching package geometry, P-Channel topology, and compliance certifications. The NTS4101PT1G maintains the 20V Vdss rating identical to the AO7407. The NTS2101PT1G operates at reduced voltage (8V Vdss) and is suitable only for applications where the lower voltage rating is acceptable.

Parameter Comparison

Engineering Selection Recommendations

NTS4101PT1G (Primary Substitute)

The NTS4101PT1G manufactured by onsemi is the direct electrical equivalent for the AO7407. Both devices share identical 20V Vdss ratings and comparable continuous drain current specifications (1.37A versus 1.2A). The NTS4101PT1G maintains full ROHS3 compliance and MSL 1 rating. On-state resistance performance (120 mOhm @ 1A, 4.5V) is within acceptable operating parameters. This substitute is suitable for direct replacement in applications requiring 20V rated P-Channel MOSFETs in SC-70-3 packages.

NTS2101PT1G (Conditional Substitute)

The NTS2101PT1G manufactured by onsemi is a reduced-voltage alternative rated for 8V Vdss. This device is suitable only for applications where the circuit voltage does not exceed 8V. The NTS2101PT1G provides superior continuous drain current (1.4A) and lower on-state resistance (100 mOhm @ 1A, 4.5V) compared to the AO7407. Full ROHS3 compliance and MSL 1 rating are maintained. This substitute is not appropriate for circuits designed for 20V operation.

Both substitute parts are active products with established inventory availability and maintain identical compliance certifications and package specifications as the AO7407.

Frequently Asked Questions (FAQ)

Q: Can the NTS2101PT1G replace the AO7407 in any application?

A: The NTS2101PT1G is suitable only for applications where the maximum circuit voltage does not exceed 8V. The AO7407 is rated for 20V Vdss operation. Direct substitution of the NTS2101PT1G in a 20V circuit will result in device failure due to voltage overstress.

Q: What is the primary advantage of the NTS4101PT1G over the AO7407?

A: The NTS4101PT1G provides equivalent voltage rating (20V Vdss) with slightly higher continuous drain current (1.37A versus 1.2A) and lower on-state resistance (120 mOhm versus 135 mOhm). These characteristics provide improved thermal performance in high-current applications.

Q: Are all three devices pin-compatible?

A: Yes. The AO7407, NTS2101PT1G, and NTS4101PT1G all use the SC-70-3 (SOT-323) package with identical pin configuration and spacing. Physical board layout compatibility is maintained across all three devices.

Q: Do the substitute parts meet the same environmental and compliance standards?

A: Yes. Both NTS2101PT1G and NTS4101PT1G are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, matching the AO7407 specifications. Operating temperature ranges are identical (-55°C to 150°C TJ).

Q: What is the difference in gate charge between these devices?

A: The AO7407 has 6.2 nC gate charge at 4.5V. The NTS2101PT1G has 6.4 nC at 5V, and the NTS4101PT1G has 9 nC at 4.5V. Higher gate charge may result in slightly slower switching response but remains within acceptable parameters for most applications.

Q: Can I use the AO7407 as a substitute for either onsemi device?

A: The AO7407 can substitute for the NTS4101PT1G in applications where the higher on-state resistance (135 mOhm versus 120 mOhm) and lower continuous current rating (1.2A versus 1.37A) are acceptable. The AO7407 cannot substitute for the NTS2101PT1G due to higher power dissipation and different electrical characteristics.