DMN4031SSD-13 Equivalent & Substitute Parts

Part Overview

The DMN4031SSD-13 is a dual N-channel MOSFET array manufactured by Diodes Incorporated, rated for 40V drain-to-source voltage and 5.2A continuous drain current. This logic-level gate device is configured in an 8-SOIC surface mount package and is currently in active product status. The part is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to design flexibility, supply chain considerations, or specific application requirements. The following parts meet the core electrical and mechanical parameters of the DMN4031SSD-13.

Substiute Parts

DMN4031SSD-13

Diodes IncorporatedIn Stock: 105439DMN4031SSD-13 Datasheet

Current PartRFQ

AO4840

Alpha & Omega Semiconductor Inc.In Stock: 54251AO4840 Datasheet

MFR RecommendedRFQ

NCV8402ADDR2G

onsemiIn Stock: 25314NCV8402ADDR2G Datasheet

MFR RecommendedRFQ

NTMD5838NLR2G

onsemiIn Stock: 35370NTMD5838NLR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DMN4031SSD-13 is determined by the following core electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Drain to Source Voltage (Vdss): 40V minimum
• Configuration: Dual N-Channel (2 N-Channel)
• FET Feature: Logic Level Gate
• Operating Temperature Range: -55°C to 150°C (TJ)
• Gate Threshold Voltage (Vgs(th)): 3V @ 250µA

Mechanical Compatibility Criteria:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Supplier Device Package: 8-SO or 8-SOIC

Compliance Criteria:

• RoHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts must satisfy all electrical and mechanical parameters. Current rating (Id), on-resistance (Rds On), gate charge (Qg), and input capacitance (Ciss) may vary within acceptable design margins. Parts with higher current ratings or lower on-resistance values provide enhanced performance headroom. Product status (Active, Not For New Designs, or Obsolete) is noted for design planning purposes.

Parameter Comparison

Engineering Selection Recommendations

AO4840 (Alpha & Omega Semiconductor Inc.)

The AO4840 is a dual N-channel MOSFET with 40V Vdss and 6A continuous drain current. It meets all electrical and mechanical compatibility criteria with the DMN4031SSD-13. The AO4840 provides equivalent on-resistance (30mOhm) and lower gate charge (10.8nC), offering improved switching performance. However, the AO4840 carries a "Not For New Designs" product status, indicating it is suitable for legacy system support and design refresh applications only. RoHS3 compliance and MSL 1 rating are maintained.

NCV8402ADDR2G (onsemi)

The NCV8402ADDR2G is a power driver IC with dual N-channel output configuration, rated for 42V maximum load voltage and 2A output current. This part differs functionally from the DMN4031SSD-13 in that it is a power management IC (PMIC) rather than a discrete MOSFET array. The NCV8402ADDR2G includes integrated driver functionality, current limiting, over-temperature protection, and over-voltage protection. It is qualified to AEC-Q100 automotive standards and maintains active product status. This part is suitable for applications requiring integrated power switching and protection features within the same 8-SOIC package footprint. The lower output current (2A) limits its use to lower-power applications compared to the DMN4031SSD-13.

NTMD5838NLR2G (onsemi)

The NTMD5838NLR2G is a dual N-channel MOSFET with 40V Vdss and 7.4A continuous drain current. It exceeds the current rating of the DMN4031SSD-13 and provides superior on-resistance (25mOhm) and lower gate charge (17nC). All electrical and mechanical parameters are compatible. However, the NTMD5838NLR2G carries an "Obsolete" product status, indicating it is no longer in active production. This part is available only through existing inventory channels and is not recommended for new design implementations. RoHS3 compliance and MSL 1 rating are maintained.

Recommended Selection Path:

For active product designs, the DMN4031SSD-13 is the primary choice. For legacy system support or design refresh where the AO4840 is available, it provides equivalent performance with improved switching characteristics. The NCV8402ADDR2G is suitable only when integrated power management and protection features are required. The NTMD5838NLR2G should be used only when existing inventory is available and obsolescence risk is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the AO4840 be used as a direct replacement for the DMN4031SSD-13?

A: The AO4840 meets all electrical and mechanical compatibility requirements. Both parts are dual N-channel MOSFETs in 8-SOIC packages with 40V Vdss and logic-level gate operation. The AO4840 provides equivalent or superior performance with lower gate charge. However, the AO4840 is designated "Not For New Designs," making it suitable for legacy applications only.

Q: Why is the NCV8402ADDR2G listed as a substitute if it has lower current rating?

A: The NCV8402ADDR2G is functionally different from the DMN4031SSD-13. It is a power driver IC rather than a discrete MOSFET array. While it shares the same 8-SOIC package and 40V voltage rating, it is suitable only for applications requiring integrated power management and protection features with lower current requirements (2A maximum output). It is not a direct functional replacement.

Q: Is the NTMD5838NLR2G suitable for new designs?

A: No. The NTMD5838NLR2G carries an "Obsolete" product status and is no longer in active production. It should be used only when existing inventory is available and the design can accept obsolescence risk. For new designs, use the DMN4031SSD-13 or the AO4840 (for legacy support applications).

Q: What are the key differences in on-resistance between these parts?

A: The DMN4031SSD-13 has 31mOhm on-resistance at 6A and 10V gate-source voltage. The AO4840 provides 30mOhm at the same conditions. The NTMD5838NLR2G offers superior performance at 25mOhm at 7A and 10V. Lower on-resistance reduces power dissipation and heat generation in switching applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The DMN4031SSD-13, AO4840, NCV8402ADDR2G, and NTMD5838NLR2G are all RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating. All parts are suitable for standard PCB assembly processes without special moisture handling requirements.

Q: Can these parts be used interchangeably in the same PCB layout?

A: Yes, from a mechanical standpoint. All parts use the 8-SOIC package with 0.154" (3.90mm) width and surface mount configuration. PCB footprints are identical. However, electrical performance differences (current rating, on-resistance, gate charge) must be evaluated for each specific application to ensure design requirements are met.

Q: What is the difference between the DMN4031SSD-13 and DMN4031 base product number?

A: The DMN4031 is the base product number. The DMN4031SSD-13 is the full manufacturer part number that includes packaging and tape/reel designation. The "-13" suffix indicates specific packaging configuration. When ordering, use the complete part number DMN4031SSD-13 to ensure correct product receipt.

Q: Why does the NCV8402ADDR2G have different electrical parameters?

A: The NCV8402ADDR2G is a power management IC with integrated driver functionality, not a discrete MOSFET. Its parameters reflect driver characteristics (output current, on-resistance of internal switches) rather than discrete transistor specifications. It includes protection features (current limiting, over-temperature, over-voltage) not present in discrete MOSFETs.