AON2809 Equivalent & Substitute Parts

Part Overview

The AON2809 is a dual P-channel MOSFET array manufactured by Alpha & Omega Semiconductor Inc., designed for surface mount applications in 6-DFN packaging. This component features logic level gate operation with a maximum drain-source voltage of 12V and continuous drain current rating of 2A at 25°C. The device is classified as obsolete, necessitating identification of functionally equivalent alternatives that maintain compatibility with existing circuit designs while offering active product status and continued availability.

Substiute Parts

AON2809

Alpha & Omega Semiconductor Inc.In Stock: 49579AON2809 Datasheet

Current PartRFQ

FDMA1023PZ

onsemiIn Stock: 32121FDMA1023PZ Datasheet

MFR RecommendedRFQ

NTLJD3115PT1G

onsemiIn Stock: 53243NTLJD3115PT1G Datasheet

MFR RecommendedRFQ

PMDPB58UPE,115

Nexperia USA Inc.In Stock: 3670PMDPB58UPE,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AON2809 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Configuration: Dual P-channel MOSFET array
• FET Feature: Logic level gate operation
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Technology: MOSFET (Metal Oxide)

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package Category: 6-pin DFN-family packages (6-WDFN, 6-VDFN, 6-UFDFN)
• Exposed Pad: Required

Performance Envelope for Substitution: Substitute parts must meet or exceed the following minimum specifications:

• Drain to Source Voltage (Vdss): Minimum 12V (higher ratings acceptable)
• Continuous Drain Current (Id) @ 25°C: Minimum 2A (higher ratings acceptable)
• Rds On (Max): Not to exceed 100mOhm @ rated conditions (lower values acceptable)
• Gate Charge (Qg): Not to exceed 15nC @ 4.5V (lower values acceptable)
• Input Capacitance (Ciss): Not to exceed 1000pF @ rated voltage (lower values acceptable)

All substitute parts listed maintain the required dual P-channel configuration, logic level gate feature, and surface mount delivery in compatible 6-pin DFN-family packages with exposed pads.

Parameter Comparison

Engineering Selection Recommendations

FDMA1023PZ (onsemi PowerTrench®)

The FDMA1023PZ is an active product offering enhanced electrical performance with 20V Vdss rating and 3.7A continuous drain current. This part exceeds the AON2809 specifications across all critical parameters while maintaining logic level gate operation and compatible operating temperature range. The 6-VDFN package provides mechanical compatibility with exposed pad configuration. Active product status ensures long-term availability and supply chain continuity. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements.

NTLJD3115PT1G (onsemi)

The NTLJD3115PT1G is an active product in 6-WDFN package, providing direct mechanical compatibility with the original AON2809 footprint. This part maintains 20V Vdss rating with 2.3A continuous drain current, closely matching the original 2A specification. Gate charge and input capacitance values remain within acceptable substitution parameters. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements. Tape & Reel packaging supports production environments.

PMDPB58UPE,115 (Nexperia USA Inc.)

The PMDPB58UPE,115 is an active product offering 20V Vdss rating with 3.6A continuous drain current and superior on-resistance characteristics (67mOhm @ 2A, 4.5V). The 6-UFDFN package provides mechanical compatibility with exposed pad configuration. This part demonstrates the lowest power dissipation rating (515mW) among substitute options. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements. Tape & Reel packaging supports production environments.

All three substitute parts maintain active product status, ensuring continued availability and manufacturer support. Selection among these alternatives depends on specific circuit requirements regarding package footprint compatibility, current handling capacity, and thermal management considerations.

Frequently Asked Questions (FAQ)

Q: Can the FDMA1023PZ directly replace the AON2809 in existing PCB layouts?

A: The FDMA1023PZ uses a 6-VDFN package while the AON2809 uses 6-WDFN. Both are 6-pin DFN-family packages with exposed pads, but footprint dimensions differ. PCB layout verification is required to confirm mechanical compatibility. The electrical interface remains compatible due to matching pin configuration and logic level gate operation.

Q: What is the primary reason for substituting the AON2809?

A: The AON2809 is classified as obsolete. Substitute parts FDMA1023PZ, NTLJD3115PT1G, and PMDPB58UPE,115 are all active products with confirmed long-term availability from their respective manufacturers.

Q: Are all substitute parts RoHS compliant?

A: Yes. FDMA1023PZ, NTLJD3115PT1G, and PMDPB58UPE,115 are all ROHS3 compliant. The AON2809 RoHS status is not specified in available documentation.

Q: Do the substitute parts operate within the same temperature range as the AON2809?

A: Yes. All substitute parts operate across the -55°C to 150°C (TJ) temperature range, matching the AON2809 specification.

Q: Which substitute part provides the closest electrical match to the AON2809?

A: The NTLJD3115PT1G provides the closest match in continuous drain current (2.3A versus 2A) and maintains the same 6-WDFN package footprint. The PMDPB58UPE,115 offers superior on-resistance characteristics (67mOhm) comparable to the original 68mOhm specification.

Q: What is the significance of the higher Vdss ratings (20V) in substitute parts?

A: The 20V Vdss rating in all substitute parts exceeds the original 12V specification, providing enhanced voltage margin and design flexibility. This higher rating does not compromise compatibility in circuits designed for 12V operation and allows use in higher voltage applications.

Q: Are there packaging considerations when selecting a substitute?

A: Yes. The AON2809 uses 6-WDFN, while substitutes use 6-WDFN (NTLJD3115PT1G), 6-VDFN (FDMA1023PZ), or 6-UFDFN (PMDPB58UPE,115). All are 6-pin DFN-family packages with exposed pads, but physical dimensions vary. Verify PCB footprint compatibility before design implementation.

Q: Do all substitute parts support the same gate charge characteristics?

A: No. The AON2809 specifies 4.4nC gate charge at 4.5V. Substitute parts range from 6.2nC (NTLJD3115PT1G) to 12nC (FDMA1023PZ). Higher gate charge values require proportionally longer switching times in gate drive circuits. Circuit simulation or testing may be necessary for timing-critical applications.

Q: What is the moisture sensitivity level for all parts in this comparison?

A: All parts, including the AON2809 and all three substitute options, are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.