DMN4027SSD-13 Equivalent & Substitute Parts

Part Overview

The DMN4027SSD-13 is a dual N-channel MOSFET array manufactured by Diodes Incorporated, designed for general-purpose switching and amplification applications. This device features a 40V drain-to-source voltage rating with 5.4A continuous drain current capability in an 8-SOIC surface mount package. The part is currently in active production status with logic level gate operation suitable for direct microcontroller interfacing.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within the same application category.

Substiute Parts

DMN4027SSD-13

Diodes IncorporatedIn Stock: 16053DMN4027SSD-13 Datasheet

Current PartRFQ

AO4840

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

MFR RecommendedRFQ

FDS8949

onsemiIn Stock: 57627FDS8949 Datasheet

MFR RecommendedRFQ

NCV8402ADDR2G

onsemiIn Stock: 25314NCV8402ADDR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DMN4027SSD-13 is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Drain-to-source voltage rating must equal or exceed 40V
• Continuous drain current must meet or exceed 5.4A at 25°C
• Gate threshold voltage must be compatible with 3V logic level operation
• On-state resistance (Rds On) must support equivalent power dissipation characteristics
• Operating temperature range must encompass -55°C to 150°C

Mechanical Compatibility Criteria:

• Package type must be 8-SOIC with 0.154" (3.90mm) width
• Surface mount configuration required
• Dual N-channel configuration required

Compliance Requirements:

• RoHS3 compliance mandatory
• Moisture sensitivity level 1 (unlimited) required

The substitute parts identified (AO4840, FDS8949, and NCV8402ADDR2G) meet these electrical and mechanical parameters within the constraints of their respective product categories and manufacturing specifications.

Parameter Comparison

Engineering Selection Recommendations

AO4840 (Alpha & Omega Semiconductor Inc.): This part provides electrical equivalence with 6A continuous drain current and 40V Vdss rating. However, the product status is listed as "Not For New Designs," which restricts its application to legacy system maintenance or existing design support only. The 8-SOIC package and logic level gate configuration provide direct mechanical and functional compatibility. Selection of this part is limited to non-new-design applications where existing inventory or design continuity is required.

FDS8949 (onsemi PowerTrench® Series): This part maintains active product status and provides full electrical equivalence with 6A continuous drain current, 40V Vdss rating, and logic level gate operation. The PowerTrench® technology platform offers optimized gate charge (11nC @ 5V) and on-state resistance (29mOhm @ 6A, 10V). The 8-SOIC package and dual N-channel configuration provide direct mechanical compatibility. This part is suitable for new designs requiring equivalent or enhanced performance characteristics.

NCV8402ADDR2G (onsemi): This part operates in the Power Management (PMIC) category as a power switch/driver rather than a discrete MOSFET array. While it shares the 8-SOIC package and operates within the same temperature range, the functional architecture differs significantly. The 2A output current rating and 165mOhm on-state resistance represent reduced current handling capability compared to the DMN4027SSD-13. This part is applicable only in applications where the lower current rating and integrated driver functionality align with system requirements. The automotive-grade qualification (AEC-Q100) provides additional reliability certification for automotive applications.

Compliance and Certification: All identified substitute parts maintain ROHS3 compliance, MSL Level 1 (unlimited moisture sensitivity), and operate across the -55°C to 150°C temperature range. The NCV8402ADDR2G includes AEC-Q100 automotive qualification, providing enhanced reliability for automotive-grade applications.

Frequently Asked Questions (FAQ)

Q: Can the AO4840 be used as a direct replacement for the DMN4027SSD-13 in new designs?

A: No. The AO4840 carries a "Not For New Designs" product status designation. This part is restricted to legacy system support and existing design maintenance only. For new designs, the FDS8949 is the recommended substitute, as it maintains active product status while providing equivalent electrical performance.

Q: What is the primary difference between the FDS8949 and the DMN4027SSD-13?

A: Both parts are dual N-channel MOSFETs with 40V Vdss and 6A continuous drain current ratings in 8-SOIC packages. The FDS8949 features slightly lower on-state resistance (29mOhm vs. 27mOhm) and operates on the onsemi PowerTrench® technology platform. The DMN4027SSD-13 has lower gate charge (12.9nC vs. 11nC at different Vgs levels) and lower input capacitance (604pF vs. 955pF). Both are suitable for equivalent applications with minor performance trade-offs.

Q: Is the NCV8402ADDR2G a suitable replacement for the DMN4027SSD-13?

A: The NCV8402ADDR2G is not a direct functional replacement. While it shares the 8-SOIC package and temperature range, it is a power switch/driver IC with integrated control logic rather than a discrete MOSFET array. The 2A output current rating is significantly lower than the 5.4A rating of the DMN4027SSD-13. This part is applicable only in applications where the lower current capability and integrated driver functionality are compatible with system requirements.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All identified substitute parts (AO4840, FDS8949, and NCV8402ADDR2G) are available in 8-SOIC packages with 0.154" (3.90mm) width, providing direct mechanical compatibility with the DMN4027SSD-13. All parts are offered in Cut Tape (CT) and Digi-Reel® packaging options.

Q: What compliance certifications apply to these substitute parts?

A: All substitute parts maintain ROHS3 compliance and MSL Level 1 (unlimited) moisture sensitivity ratings. The NCV8402ADDR2G includes additional AEC-Q100 automotive qualification, suitable for automotive-grade applications. All parts are REACH unaffected and classified under EAR99 export control.

Q: Can the DMN4027SSD-13 and FDS8949 be used interchangeably in existing designs?

A: Yes, within the constraints of the application. Both parts provide equivalent voltage and current ratings, logic level gate operation, and 8-SOIC packaging. Minor differences in gate charge, input capacitance, and on-state resistance may affect switching speed and power dissipation characteristics. Circuit-level validation is required to confirm performance equivalence in specific applications.

Q: What is the significance of the "Logic Level Gate" feature for substitution?

A: The logic level gate feature indicates that both the main part and substitute parts can be directly driven by standard 3V to 5V logic signals from microcontrollers and digital circuits. This feature is consistent across the DMN4027SSD-13, AO4840, and FDS8949, ensuring compatibility with common control architectures. The NCV8402ADDR2G operates as an integrated driver and does not require external logic level gate consideration.