DMTH4008LFDFWQ-13 Equivalent & Substitute Parts

Part Overview

The DMTH4008LFDFWQ-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 active in production with 9907 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter set, enabling component sourcing flexibility while preserving circuit functionality.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	40	V
Continuous Drain Current (Id) @ 25°C	11.6	A
Rds On (Max) @ 10A, 10V	11.5	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	3	V
Gate Charge (Qg) @ 10V	14.2	nC
Input Capacitance (Ciss) @ 20V	1030	pF
Power Dissipation (Max)	990	mW
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	6-UDFN Exposed Pad	Surface Mount
Qualification Standard	AEC-Q101	Automotive

Substitute Part Grouping Explanation

Substitute parts for the DMTH4008LFDFWQ-13 are identified based on electrical parameter equivalence and mechanical compatibility. The substitution criteria are strictly limited to the following parameters:

Drain to Source Voltage (Vdss): 40V
Continuous Drain Current (Id) @ 25°C: 11.6A
On-State Resistance (Rds On) @ 10A, 10V: 11.5 mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA: 3V
Gate Charge (Qg) @ 10V: 14.2 nC
Input Capacitance (Ciss) @ 20V: 1030 pF
Power Dissipation (Max): 990 mW
Operating Temperature Range: -55°C to 175°C
Package Type: 6-UDFN Exposed Pad, Surface Mount
Qualification: AEC-Q101 Automotive Grade
RoHS3 Compliance
Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts maintain identical electrical specifications and package configuration, ensuring direct functional equivalence within the specified parameter tolerances.

Parameter Comparison

Parameter	DMTH4008LFDFWQ-13	DMTH4008LFDFW-7	DMTH4008LFDFWQ-7
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
FET Type	N-Channel	N-Channel	N-Channel
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Vdss	40 V	40 V	40 V
Id @ 25°C	11.6 A	11.6 A	11.6 A
Rds On (Max) @ 10A, 10V	11.5 mOhm	11.5 mOhm	11.5 mOhm
Vgs(th) @ 250µA	3 V	3 V	3 V
Qg @ 10V	14.2 nC	14.2 nC	14.2 nC
Ciss @ 20V	1030 pF	1030 pF	1030 pF
Power Dissipation (Max)	990 mW	990 mW	990 mW
Operating Temperature	-55 to 175°C	-55 to 175°C	-55 to 175°C
Package	6-UDFN Exposed Pad	6-UDFN Exposed Pad	6-UDFN Exposed Pad
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Grade	Automotive	Automotive	Automotive
Qualification	AEC-Q101	AEC-Q101	AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active
Inventory (Pcs)	9907	945	6034

Engineering Selection Recommendations

All three parts—DMTH4008LFDFWQ-13, DMTH4008LFDFW-7, and DMTH4008LFDFWQ-7—are active production devices from Diodes Incorporated with identical electrical specifications and mechanical packaging. Each part carries AEC-Q101 automotive qualification and ROHS3 compliance, confirming suitability for automotive and industrial applications requiring automotive-grade reliability.

Selection between these parts is determined by inventory availability and supply chain requirements rather than electrical or mechanical differences. The DMTH4008LFDFWQ-13 maintains the highest inventory level at 9907 units. The DMTH4008LFDFWQ-7 provides 6034 units in stock, while DMTH4008LFDFW-7 offers 945 units. All three parts are functionally interchangeable within circuits designed for the DMTH4008 base product family.

Frequently Asked Questions (FAQ)

Q: Are DMTH4008LFDFW-7 and DMTH4008LFDFWQ-13 electrically identical?

A: Yes. Both parts share identical electrical parameters including Vdss (40V), Id (11.6A), Rds On (11.5 mOhm @ 10A, 10V), gate threshold voltage, gate charge, and input capacitance. They are functionally equivalent for circuit applications.

Q: Can DMTH4008LFDFWQ-7 be used as a direct replacement for DMTH4008LFDFWQ-13?

A: Yes. The DMTH4008LFDFWQ-7 maintains identical electrical specifications, package configuration (6-UDFN Exposed Pad), and automotive qualification (AEC-Q101). Direct substitution is supported without circuit modification.

Q: What is the difference between these part numbers?

A: The part numbers differ in suffix designation (LFDFWQ-13, LFDFW-7, LFDFWQ-7), which reflects manufacturing date codes or internal Diodes Incorporated product tracking. Electrical and mechanical specifications remain constant across all variants.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts carry AEC-Q101 automotive qualification and ROHS3 compliance, confirming their suitability for automotive-grade circuit designs.

Q: Which part should be selected for new designs?

A: Selection is based on supply chain availability. All three parts are active production devices with equivalent performance. Inventory levels are DMTH4008LFDFWQ-13 (9907 pcs), DMTH4008LFDFWQ-7 (6034 pcs), and DMTH4008LFDFW-7 (945 pcs).

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

A: Yes. All three parts use the 6-UDFN Exposed Pad surface mount package with identical footprint and thermal characteristics, enabling direct PCB layout compatibility.

Q: Do these parts require different handling or storage procedures?

A: No. All three parts share Moisture Sensitivity Level 1 (Unlimited), indicating identical handling and storage requirements with no special moisture control measures required.

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