AOL1412 N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The AOL1412 is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 30V drain-to-source voltage with continuous drain current of 17A (Ta) and 70A (Tc). The device features a Schottky body diode and is packaged in the UltraSO-8™ surface mount configuration. This part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

AOL1412

Alpha & Omega Semiconductor Inc.In Stock: 53105AOL1412 Datasheet

Current PartRFQ

PSMN3R0-30YL,115

Nexperia USA Inc.In Stock: 42968PSMN3R0-30YL,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AOL1412 is determined by strict equivalence across the following critical parameters:

Voltage Rating: The substitute must maintain the 30V Vdss specification to ensure safe operation within the same voltage domain.

Current Capability: The substitute must support continuous drain current at or above the 17A (Ta) and 70A (Tc) ratings of the original part.

On-Resistance (RDS(on)): The substitute must not exceed the 3.9 mOhm maximum specification at the specified gate voltage and current conditions to maintain equivalent power dissipation characteristics.

Gate Threshold Voltage: The substitute must operate within compatible gate drive voltage ranges, with Vgs(th) not exceeding 2.4V to ensure reliable switching with standard gate drive circuits.

Gate Charge: The substitute must maintain gate charge characteristics compatible with the original 115 nC specification to preserve switching speed and drive circuit performance.

Package Compatibility: The substitute must be surface mount and compatible with the original circuit board layout and thermal management design.

Temperature Range: The substitute must support the full operating temperature range of -55°C to 150°C (TJ).

The PSMN3R0-30YL,115 from Nexperia USA Inc. meets these substitution criteria with equivalent voltage rating, superior current capability, improved on-resistance, and compatible gate characteristics.

Parameter Comparison

Engineering Selection Recommendations

The PSMN3R0-30YL,115 serves as a direct functional substitute for the obsolete AOL1412. Both devices share identical 30V voltage ratings and are classified as N-Channel MOSFETs with metal oxide technology. The substitute provides superior electrical performance with 100A continuous drain current capability compared to the original 70A (Tc) rating, lower on-resistance of 3.0 mOhm versus 3.9 mOhm, and reduced gate charge of 45.8 nC versus 115 nC.

The PSMN3R0-30YL,115 is classified as "Not For New Designs," indicating limited long-term availability. Both parts maintain REACH Unaffected status and EAR99 export classification, ensuring regulatory compliance equivalence. The substitute operates across an extended temperature range of -55°C to 175°C, exceeding the original -55°C to 150°C specification.

Package differences exist between the UltraSO-8™ (3-PowerSMD) of the original and the LFPAK56 (Power-SO8, SC-100, SOT-669) of the substitute. Circuit board layout modification is required for physical substitution. The LFPAK56 package provides enhanced thermal performance with 81W maximum power dissipation capability compared to 36W (Tc) of the original.

Both parts maintain MSL 1 (Unlimited) moisture sensitivity classification, indicating no special moisture handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can the PSMN3R0-30YL,115 directly replace the AOL1412 without circuit modifications?

A: Electrical substitution is valid. Physical substitution requires printed circuit board layout modification due to package differences. The AOL1412 uses UltraSO-8™ packaging while the PSMN3R0-30YL,115 uses LFPAK56 (Power-SO8) packaging. Pin configurations and footprints differ between these package types.

Q: What are the key electrical advantages of the PSMN3R0-30YL,115 substitute?

A: The substitute provides 100A continuous drain current capability versus 70A (Tc) of the original, lower on-resistance of 3.0 mOhm at 15A versus 3.9 mOhm at 20A, and significantly reduced gate charge of 45.8 nC versus 115 nC. These characteristics result in lower power dissipation and faster switching performance.

Q: Are there thermal management differences between these devices?

A: Yes. The PSMN3R0-30YL,115 supports maximum power dissipation of 81W (Tc) compared to 36W (Tc) for the AOL1412. The LFPAK56 package provides superior thermal characteristics through enhanced lead frame design and increased copper area for heat spreading.

Q: Do both parts require identical gate drive voltage levels?

A: Both devices operate with compatible gate drive voltages. The AOL1412 specifies ±12V maximum gate voltage, while the PSMN3R0-30YL,115 supports ±20V maximum gate voltage. Standard gate drive circuits designed for the original part function with the substitute.

Q: What is the impact of the different gate charge specifications?

A: The substitute's reduced gate charge of 45.8 nC versus 115 nC results in faster switching transitions and lower gate drive power consumption. Gate drive circuits designed for the original part operate with improved efficiency when driving the substitute.

Q: Are moisture sensitivity and regulatory compliance equivalent?

A: Both parts maintain MSL 1 (Unlimited) classification, requiring no special moisture handling. Both are REACH Unaffected and classified as EAR99 for export purposes, ensuring equivalent regulatory compliance.

Q: What is the significance of the "Not For New Designs" status of the substitute?

A: This classification indicates the PSMN3R0-30YL,115 has limited long-term availability and may be discontinued. While suitable for legacy system support and replacement applications, new product designs should evaluate alternative parts with active production status.

Q: How do the operating temperature ranges compare?

A: The AOL1412 operates from -55°C to 150°C (TJ), while the PSMN3R0-30YL,115 extends to -55°C to 175°C (TJ). The substitute provides a 25°C higher maximum junction temperature capability, beneficial for high-temperature applications.