AON2403 Equivalent & Substitute Parts

Part Overview

The AON2403 is a P-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., designed for surface mount applications in 6-DFN (2x2) packaging. This device operates at 12V drain-to-source voltage with continuous drain current of 8A at 25°C and is rated for power dissipation of 2.8W. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining compatibility with the application circuit topology and thermal requirements.

Substiute Parts

AON2403

Alpha & Omega Semiconductor Inc.In Stock: 30189AON2403 Datasheet

Current PartRFQ

PMPB20XPE,115

Nexperia USA Inc.In Stock: 9578PMPB20XPE,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AON2403 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• FET Type must be P-Channel
• Drain-to-Source Voltage (Vdss) must be greater than or equal to 12V
• Continuous Drain Current (Id) must be greater than or equal to 8A at 25°C
• On-state resistance (Rds On) must not exceed the maximum specified value at rated current and gate voltage
• Gate threshold voltage (Vgs(th)) must be compatible with drive circuit specifications
• Gate charge (Qg) characteristics must support switching frequency requirements
• Maximum gate voltage (Vgs) must accommodate drive signal levels

Mechanical Compatibility Criteria:

• Mounting type must be Surface Mount
• Package must be 6-UDFN Exposed Pad configuration
• Physical dimensions must be compatible with PCB layout constraints

Compliance Requirements:

• RoHS3 compliance required
• REACH Unaffected status required
• Operating temperature range must encompass -55°C to 150°C

The PMPB20XPE,115 manufactured by Nexperia USA Inc. meets these substitution criteria with higher voltage rating (20V), comparable drain current (7.2A), and equivalent package configuration.

Parameter Comparison

Engineering Selection Recommendations

AON2403 Selection: The AON2403 is appropriate for applications requiring 12V operation with 8A continuous drain current in a compact 6-DFN surface mount package. This device is suitable for low-voltage switching applications with moderate power dissipation requirements. Active product status ensures ongoing manufacturer support and supply availability.

PMPB20XPE,115 Selection: The PMPB20XPE,115 provides higher voltage headroom (20V Vdss) compared to the AON2403, making it suitable for applications where supply voltage may exceed 12V or where design margin is required. The 7.2A continuous drain current is slightly lower than the AON2403 but remains within acceptable range for many applications. Higher gate charge (45 nC versus 18 nC) indicates increased switching losses at higher frequencies. Both devices maintain identical operating temperature range and compliance certifications.

Substitution Feasibility: The PMPB20XPE,115 functions as a direct substitute in applications where the 12V voltage rating of the AON2403 is not a limiting constraint. The higher Vdss rating provides design flexibility without compromising electrical performance. Both devices are Active status products with RoHS3 compliance and REACH Unaffected designation, ensuring regulatory compliance and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the PMPB20XPE,115 replace the AON2403 in all applications?

A: The PMPB20XPE,115 can replace the AON2403 in applications where the circuit voltage does not exceed 20V and where the 7.2A continuous drain current meets or exceeds the application requirement. The higher gate charge of the PMPB20XPE,115 may increase switching losses in high-frequency applications. Circuit validation is necessary to confirm performance equivalence in specific applications.

Q: What are the key differences between these two P-Channel MOSFETs?

A: The primary differences are: (1) Drain-to-Source Voltage: AON2403 rated at 12V, PMPB20XPE,115 rated at 20V; (2) Continuous Drain Current: AON2403 at 8A, PMPB20XPE,115 at 7.2A; (3) Gate Charge: AON2403 at 18 nC, PMPB20XPE,115 at 45 nC; (4) Input Capacitance: AON2403 at 1370 pF, PMPB20XPE,115 at 2945 pF. Both devices share identical threshold voltage, operating temperature range, and package configuration.

Q: Are both devices available in the same package?

A: Yes. Both the AON2403 and PMPB20XPE,115 are supplied in 6-UDFN Exposed Pad surface mount packages. Physical dimensions and PCB footprints are identical, allowing direct board-level substitution without layout modification.

Q: What is the impact of higher gate charge on circuit performance?

A: Higher gate charge (45 nC for PMPB20XPE,115 versus 18 nC for AON2403) requires greater charge delivery from the gate driver circuit. This results in increased switching time and higher switching losses at elevated frequencies. Gate driver current capability must be verified to ensure adequate charge delivery within the required switching time window.

Q: Do both devices meet the same regulatory requirements?

A: Yes. Both the AON2403 and PMPB20XPE,115 are RoHS3 compliant, REACH Unaffected, and maintain Active product status. Both devices are rated for -55°C to 150°C operating temperature range and are suitable for applications requiring regulatory compliance in these areas.

Q: What is the significance of the higher Vdss rating on the PMPB20XPE,115?

A: The 20V Vdss rating of the PMPB20XPE,115 provides additional voltage margin compared to the 12V rating of the AON2403. This higher rating allows operation in circuits with higher supply voltages or transient overvoltage conditions without exceeding device maximum ratings. However, this advantage is only relevant if the application circuit voltage exceeds 12V.