DMN4035LQ-13 Equivalent & Substitute Parts

Part Overview

The DMN4035LQ-13 is an N-Channel 40V 4.6A surface mount MOSFET manufactured by Diodes Incorporated in SOT-23-3 packaging. This device is classified as Active product status and carries automotive-grade qualification (AEC-Q101). The DMN4035LQ-13 is designed for applications requiring low on-resistance switching performance in compact form factors. Substitute parts are identified based on identical electrical specifications and mechanical compatibility within the DMN4035 base product family.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	40	V
Continuous Drain Current (Id) @ 25°C	4.6	A
On-Resistance (Rds On Max) @ 4.3A, 10V	42	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ 250µA	3	V
Gate Charge (Qg Max) @ 10V	12.5	nC
Input Capacitance (Ciss Max) @ 20V	574	pF
Power Dissipation (Max)	720	mW
Operating Temperature Range	-55 to 150	°C
Package Type	SOT-23-3	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution within the DMN4035 family is determined by electrical parameter equivalence and mechanical compatibility. All substitute parts share identical specifications across the following critical parameters:

Drain to Source Voltage (Vdss): 40V
Continuous Drain Current (Id): 4.6A @ 25°C
On-Resistance (Rds On): 42mOhm @ 4.3A, 10V
Gate Threshold Voltage: 3V @ 250µA
Gate Charge: 12.5nC @ 10V
Input Capacitance: 574pF @ 20V
Power Dissipation: 720mW
Operating Temperature: -55°C to 150°C
Package: SOT-23-3 (TO-236-3, SC-59)
Mounting: Surface Mount, Tape & Reel

The suffix designations (-13, -7, L, LQ) indicate manufacturing date codes and qualification levels. Parts designated with "LQ" carry automotive-grade AEC-Q101 qualification. Parts designated with "L" are standard industrial-grade variants. All variants within this family are electrically and mechanically interchangeable based on the parameters listed above.

Parameter Comparison

Parameter	DMN4035LQ-13	DMN4035L-13	DMN4035L-7	DMN4035LQ-7
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
FET Type	N-Channel	N-Channel	N-Channel	N-Channel
Vdss	40V	40V	40V	40V
Id @ 25°C	4.6A	4.6A	4.6A	4.6A
Rds On (Max) @ 4.3A, 10V	42mOhm	42mOhm	42mOhm	42mOhm
Vgs(th) Max @ 250µA	3V	3V	3V	3V
Qg Max @ 10V	12.5nC	12.5nC	12.5nC	12.5nC
Ciss Max @ 20V	574pF	574pF	574pF	574pF
Power Dissipation (Max)	720mW	720mW	720mW	720mW
Operating Temperature	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C
Package	SOT-23-3	SOT-23-3	SOT-23-3	SOT-23-3
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Grade	Automotive	Industrial	Industrial	Automotive
Qualification	AEC-Q101	—	—	AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain identical electrical and mechanical specifications. Selection between variants is determined by application requirements and compliance mandates:

For Automotive Applications: DMN4035LQ-13 and DMN4035LQ-7 are specified. Both carry AEC-Q101 automotive qualification and are suitable for automotive-grade designs. The -13 and -7 designations indicate manufacturing date codes and do not affect electrical performance or qualification status.

For Industrial Applications: DMN4035L-13 and DMN4035L-7 are suitable alternatives where automotive qualification is not required. These variants maintain identical electrical specifications and RoHS3 compliance.

Inventory Availability: DMN4035L-7 maintains the highest inventory level (23,100 pcs), followed by DMN4035LQ-13 (8,922 pcs), DMN4035L-13 (1,132 pcs), and DMN4035LQ-7 (2,297 pcs).

All parts are Active product status, ROHS3 compliant, and carry MSL 1 (Unlimited) moisture sensitivity classification. Selection between -13 and -7 date code variants does not impact electrical performance, compliance, or interchangeability.

Frequently Asked Questions (FAQ)

Q: Are all DMN4035 variants electrically interchangeable?

A: Yes. All variants (DMN4035LQ-13, DMN4035L-13, DMN4035L-7, DMN4035LQ-7) share identical electrical specifications including Vdss (40V), Id (4.6A), Rds On (42mOhm), and all other parameters listed in the Key Parameters table. Substitution is valid based on electrical equivalence.

Q: What is the difference between the "LQ" and "L" designations?

A: The "LQ" designation indicates automotive-grade qualification (AEC-Q101). The "L" designation indicates industrial-grade variants without automotive qualification. Electrical specifications are identical. Selection depends on application requirements and compliance mandates.

Q: What do the "-13" and "-7" suffixes represent?

A: These suffixes indicate manufacturing date codes. They do not affect electrical performance, specifications, or interchangeability. All date code variants within the same grade (LQ or L) are functionally equivalent.

Q: Can I substitute DMN4035L-7 for DMN4035LQ-13 in an automotive application?

A: No. Automotive applications requiring AEC-Q101 qualification must use DMN4035LQ-13 or DMN4035LQ-7. The industrial-grade DMN4035L-7 lacks automotive qualification and is not suitable for automotive-grade designs.

Q: Can I substitute DMN4035LQ-7 for DMN4035LQ-13?

A: Yes. Both parts carry AEC-Q101 automotive qualification and share identical electrical specifications. The date code suffix (-7 vs -13) does not affect performance or compatibility.

Q: Are the package dimensions identical across all variants?

A: Yes. All variants use SOT-23-3 packaging (also designated TO-236-3 or SC-59). Pin configuration, footprint, and mechanical dimensions are identical across all substitute parts.

Q: What is the MSL rating for these parts?

A: All variants carry MSL 1 (Unlimited), indicating unlimited shelf life under standard storage conditions without moisture bake requirements.

Q: Are all variants RoHS3 compliant?

A: Yes. All DMN4035 variants (DMN4035LQ-13, DMN4035L-13, DMN4035L-7, DMN4035LQ-7) are ROHS3 compliant.

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