DMTH4008LFDFW-13 Equivalent & Substitute Parts

Part Overview

The DMTH4008LFDFW-13 is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 40V drain-to-source voltage with 11.6A continuous drain current at 25°C. This device is housed in a 6-UDFN surface mount package with exposed pad and is qualified to AEC-Q101 automotive standards. The part is currently in active production status with 706 units in stock.

Substitute parts are identified when electrical performance parameters, mechanical packaging, and compliance certifications remain identical across different manufacturing date codes or internal qualification variants. This reference provides equivalent alternatives for design flexibility, supply chain optimization, and inventory management.

Substiute Parts

DMTH4008LFDFW-13

Diodes IncorporatedIn Stock: 752DMTH4008LFDFW-13 Datasheet

Current PartRFQ

DMTH4008LFDFW-7

Diodes IncorporatedIn Stock: 1039DMTH4008LFDFW-7 Datasheet

Parametric EquivalentRFQ

DMTH4008LFDFWQ-13

Diodes IncorporatedIn Stock: 9942DMTH4008LFDFWQ-13 Datasheet

Parametric EquivalentRFQ

DMTH4008LFDFWQ-7

Diodes IncorporatedIn Stock: 6054DMTH4008LFDFWQ-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

All substitute parts listed maintain identical electrical performance specifications and mechanical packaging requirements as the primary part DMTH4008LFDFW-13. Substitution is based on the following criteria:

Electrical Parameters (Identical Across All Variants):

• Drain-to-source voltage: 40V
• Continuous drain current: 11.6A @ 25°C
• On-resistance: 11.5 mOhm @ 10A, 10V
• Gate threshold voltage: 3V @ 250µA
• Gate charge: 14.2 nC @ 10V
• Input capacitance: 1030 pF @ 20V
• Power dissipation: 990 mW
• Operating temperature range: -55°C to 175°C

Mechanical & Compliance Parameters (Identical Across All Variants):

• Package: 6-UDFN Exposed Pad (U-DFN2020-6 SWP Type F)
• Mounting: Surface Mount, Tape & Reel
• AEC-Q101 Automotive Qualification
• RoHS3 Compliance
• MSL Level 1 (Unlimited moisture sensitivity)
• REACH Unaffected status

The substitutes differ only in manufacturing date code designation (suffix -7 or -13) and internal qualification variant (LFDFWQ vs. LFDFW), which do not affect electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

All four part variants (DMTH4008LFDFW-13, DMTH4008LFDFW-7, DMTH4008LFDFWQ-13, DMTH4008LFDFWQ-7) are functionally equivalent and interchangeable at the circuit level. Selection between variants should be based on the following factors:

Compliance & Certification: All variants maintain identical AEC-Q101 automotive qualification status and RoHS3 compliance, making them suitable for automotive and industrial applications requiring these certifications.

Inventory Availability: DMTH4008LFDFWQ-13 offers the highest inventory level at 9,907 units, followed by DMTH4008LFDFWQ-7 with 6,034 units. These variants provide superior supply chain continuity for high-volume production requirements.

Manufacturing Date Code: The suffix designation (-7 or -13) indicates manufacturing date code variants. Both are active production parts with no functional differences.

Qualification Variant: The LFDFWQ designation represents an internal qualification variant of LFDFW. Both meet identical electrical and mechanical specifications and automotive standards.

Frequently Asked Questions (FAQ)

Q: Can DMTH4008LFDFWQ-13 be used as a direct replacement for DMTH4008LFDFW-13?

A: Yes. Both parts are electrically and mechanically identical. They share the same drain-source voltage (40V), continuous drain current (11.6A), on-resistance (11.5 mOhm), package type (6-UDFN), and AEC-Q101 qualification. The difference in part number suffix reflects internal qualification variants only.

Q: Are there any differences in thermal performance between these variants?

A: No. All variants have identical power dissipation ratings (990 mW maximum) and operating temperature ranges (-55°C to 175°C junction temperature). Thermal performance is determined by package geometry and die characteristics, which are identical across all four parts.

Q: What does the manufacturing date code suffix (-7 or -13) indicate?

A: The suffix designates the manufacturing date code. Both -7 and -13 variants are currently in active production. The date code does not affect electrical performance, mechanical compatibility, or compliance certifications.

Q: Can these parts be mixed in the same production batch?

A: Yes. All four variants are fully interchangeable from electrical, mechanical, and compliance perspectives. They can be used interchangeably in the same circuit design and PCB layout without modification.

Q: Are all variants RoHS3 compliant and AEC-Q101 qualified?

A: Yes. All four part numbers (DMTH4008LFDFW-13, DMTH4008LFDFW-7, DMTH4008LFDFWQ-13, DMTH4008LFDFWQ-7) maintain identical RoHS3 compliance and AEC-Q101 automotive qualification status.

Q: What is the difference between LFDFW and LFDFWQ designations?

A: Both designations represent qualification variants of the same base product (DMTH4008). They meet identical electrical specifications and automotive standards. The designation difference reflects internal Diodes Incorporated qualification tracking only.

Q: Which variant should be selected for new designs?

A: Any of the four variants can be selected for new designs. Selection should prioritize inventory availability and supply chain stability. DMTH4008LFDFWQ-13 and DMTH4008LFDFWQ-7 offer higher stock levels and are recommended for high-volume applications.

Q: Is the 6-UDFN package identical across all variants?

A: Yes. All variants use the identical 6-UDFN Exposed Pad package (U-DFN2020-6 SWP Type F) with surface mount, tape and reel packaging. PCB footprints and reflow profiles are identical.