DMN4035L-13 Equivalent & Substitute Parts

Part Overview

The DMN4035L-13 is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 40V drain-to-source voltage with 4.6A continuous drain current at 25°C. The device is packaged in SOT-23-3 surface mount configuration and dissipates a maximum of 720mW. This part is currently in active production status with full RoHS3 compliance and REACH unaffected designation.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the same device family. The DMN4035 series provides multiple qualified variants that satisfy identical application requirements while offering different manufacturing qualifications and inventory availability.

Key Parameters

Parameter	Value	Unit
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
Maximum Gate Voltage (Vgs)	±20	V
Power Dissipation (Max)	720	mW
Operating Temperature Range	-55 to 150	°C
Package Type	SOT-23-3	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

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

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

Variants within this family differ in manufacturing qualification level (standard industrial versus automotive AEC-Q101) and tape & reel packaging designations. These differences do not affect electrical performance or mechanical fit.

Parameter Comparison

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

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical equivalence to the DMN4035L-13. Selection between variants depends on application requirements and supply chain considerations:

DMN4035L-13 (Original Part): Industrial-grade N-Channel MOSFET with 1,132 units in stock. Suitable for standard commercial applications requiring 40V/4.6A performance in SOT-23-3 packaging.

DMN4035L-7: Industrial-grade variant with identical electrical specifications. Higher inventory availability (23,100 units) supports high-volume production requirements. Equivalent performance for non-automotive applications.

DMN4035LQ-13: Automotive-qualified variant (AEC-Q101) with 8,922 units in stock. Required for automotive and safety-critical applications where AEC-Q101 certification is mandatory.

DMN4035LQ-7: Automotive-qualified variant (AEC-Q101) with 2,297 units in stock. Provides automotive-grade performance with lower inventory levels.

All parts carry ROHS3 compliance, REACH unaffected status, and MSL Level 1 (unlimited moisture sensitivity). Selection should prioritize application grade requirements (automotive versus industrial) and inventory availability for production scheduling.

Frequently Asked Questions (FAQ)

Q: Can DMN4035L-13 be replaced with DMN4035L-7?

A: Yes. Both parts are electrically and mechanically identical. The suffix difference (-13 versus -7) indicates tape & reel packaging designation only. Electrical performance, on-resistance, gate charge, and thermal characteristics are equivalent. Selection depends on inventory availability and supply chain requirements.

Q: What is the difference between standard (L) and automotive-qualified (LQ) variants?

A: The LQ variants (DMN4035LQ-13 and DMN4035LQ-7) carry AEC-Q101 automotive qualification. All electrical parameters remain identical to standard variants. AEC-Q101 qualification is required for automotive applications and safety-critical systems. Standard L variants are suitable for industrial and commercial applications without automotive requirements.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts use SOT-23-3 packaging (also designated TO-236-3 or SC-59). PCB footprints, land patterns, and mounting procedures are identical across all variants. No PCB redesign is required when substituting between DMN4035L-13, DMN4035L-7, DMN4035LQ-13, and DMN4035LQ-7.

Q: Can automotive-qualified parts (LQ) be used in non-automotive applications?

A: Yes. Automotive-qualified parts exceed industrial requirements and are fully compatible with non-automotive designs. Using AEC-Q101 qualified parts in standard applications introduces no compatibility issues and may provide additional reliability margin.

Q: What is the significance of the tape & reel designation in the part number suffix?

A: The suffix (-13 or -7) indicates the tape & reel packaging configuration for automated assembly. This affects only the physical packaging format and does not influence electrical performance, thermal characteristics, or functional behavior. Both configurations are suitable for surface mount assembly.

Q: Are all substitute parts currently in active production?

A: Yes. All four variants (DMN4035L-13, DMN4035L-7, DMN4035LQ-13, and DMN4035LQ-7) maintain active production status with Diodes Incorporated. Inventory availability varies by variant and should be confirmed for production scheduling.

Q: Do substitute parts require different soldering or assembly procedures?

A: No. All substitute parts use identical SOT-23-3 surface mount packaging. Soldering profiles, reflow temperatures, and assembly procedures are identical. No process changes are required when substituting between variants.

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