DMN4027SSS-13 Equivalent & Substitute Parts

Part Overview

The DMN4027SSS-13 is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 40V drain-to-source voltage with 6A continuous drain current at 25°C. This device is packaged in an 8-SO surface mount configuration and is designed for general-purpose switching and amplification applications in low-voltage power management circuits.

The DMN4027SSS-13 carries an Obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

DMN4027SSS-13

Diodes IncorporatedIn Stock: 5729DMN4027SSS-13 Datasheet

Current PartRFQ

FDS8449

onsemiIn Stock: 32632FDS8449 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DMN4027SSS-13 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• FET Type: N-Channel topology
• Drain to Source Voltage (Vdss): 40V minimum rating
• Gate-Source Voltage (Vgs): ±20V maximum rating
• Gate Threshold Voltage (Vgs(th)): 3V maximum at 250µA
• Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Equivalence Criteria:

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

Compliance Equivalence Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The FDS8449 manufactured by onsemi satisfies all electrical, mechanical, and compliance equivalence criteria. While the FDS8449 exhibits higher continuous drain current (7.6A versus 6A) and greater power dissipation capability (2.5W versus 1.56W), these represent performance enhancements that do not compromise compatibility in applications designed for the DMN4027SSS-13 specification envelope.

Parameter Comparison

Engineering Selection Recommendations

The FDS8449 is a direct substitute for the DMN4027SSS-13 based on the following engineering criteria:

Electrical Compatibility: Both devices operate within identical voltage and temperature specifications. The FDS8449 maintains the same gate threshold voltage (3V @ 250µA) and maximum gate-source voltage (±20V), ensuring gate drive circuit compatibility without modification.

Mechanical Compatibility: Both components utilize the 8-SOIC package with identical physical dimensions (0.154", 3.90mm Width), permitting direct board-level substitution without PCB redesign.

Compliance Alignment: Both parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, satisfying regulatory and manufacturing process requirements.

Supply Chain Status: The FDS8449 carries Active product status with 32,600 units in stock, compared to the Obsolete status of the DMN4027SSS-13 with 5,646 units available. Selection of the FDS8449 ensures long-term supply continuity and design sustainability.

Performance Enhancement: The FDS8449 provides increased continuous drain current (7.6A versus 6A) and higher power dissipation capability (2.5W versus 1.56W), representing performance margin improvements that do not introduce compatibility constraints in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the FDS8449 be used as a direct replacement for the DMN4027SSS-13 without circuit modification?

A: Yes. The FDS8449 satisfies all electrical and mechanical equivalence criteria. Identical voltage ratings, gate threshold specifications, and 8-SOIC package dimensions permit direct substitution on existing PCBs without design changes.

Q: What are the key differences between these two devices?

A: The primary differences are product status and performance ratings. The DMN4027SSS-13 is Obsolete with 6A continuous drain current and 1.56W power dissipation. The FDS8449 is Active with 7.6A continuous drain current and 2.5W power dissipation. Both maintain identical voltage specifications and package configuration.

Q: Are there any gate drive circuit compatibility concerns?

A: No. Both devices specify identical gate threshold voltage (3V @ 250µA) and maximum gate-source voltage (±20V). Existing gate drive circuits designed for the DMN4027SSS-13 operate without modification on the FDS8449.

Q: Does the higher current rating of the FDS8449 create any compatibility issues?

A: No. The higher continuous drain current (7.6A) and power dissipation (2.5W) of the FDS8449 represent performance enhancements. Applications designed for the 6A rating of the DMN4027SSS-13 operate within the FDS8449 specification envelope without adverse effects.

Q: Are both devices RoHS compliant?

A: Yes. Both the DMN4027SSS-13 and FDS8449 are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: What is the supply availability status for each device?

A: The DMN4027SSS-13 is Obsolete with 5,646 units in stock. The FDS8449 is Active with 32,600 units in stock, providing superior long-term supply continuity.

Q: Are the on-resistance specifications equivalent?

A: The specifications are comparable. The DMN4027SSS-13 specifies 27 mOhm maximum at 7A, 10V. The FDS8449 specifies 29 mOhm maximum at 7.6A, 10V. This minimal difference does not impact circuit performance in typical switching applications.