DMN2075UDW-7 Equivalent & Substitute Parts

Part Overview

The DMN2075UDW-7 is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 20V drain-to-source voltage with 2.8A continuous drain current at 25°C. The device is packaged in SOT-363 (6-TSSOP) surface mount configuration and dissipates a maximum of 500mW. This part is classified as "Not For New Designs," indicating it has been superseded or is in end-of-life status. Identifying equivalent and substitute parts is necessary for design continuity, inventory management, and sourcing alternatives that meet the same electrical and mechanical requirements.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Drain-to-Source Voltage (Vdss)	20	V
Continuous Drain Current (Id) @ 25°C	2.8	A
On-Resistance (Rds On Max) @ 3A, 4.5V	48	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ 250µA	1	V
Gate Charge (Qg Max) @ 4.5V	7	nC
Power Dissipation (Max)	500	mW
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	SOT-363 (6-TSSOP)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the DMN2075UDW-7 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

Drain-to-Source Voltage (Vdss) must be equal to or greater than 20V
Continuous Drain Current (Id) must meet or exceed 2.8A at 25°C
Gate Threshold Voltage (Vgs(th)) must be compatible with 1V @ 250µA specification
Maximum Gate Voltage (Vgs Max) must be ±8V or greater
Operating temperature range must span -55°C to 150°C (TJ)

Mechanical Compatibility Criteria:

Package must be SOT-363 (6-TSSOP) or equivalent pinout-compatible surface mount package
Mounting type must be surface mount
RoHS3 compliance and MSL 1 rating required

Substitute Parts Identified:

DMN2056U-7 (Diodes Incorporated) — Direct manufacturer alternative with higher current rating (4A) and improved thermal performance (940mW), different package (SOT-23-3)
NTJS3157NT1G (onsemi) — Same package family (SOT-363), higher current rating (3.2A), higher power dissipation (1W)
NVJS4405NT1G (onsemi) — Same package family (SOT-363), lower current rating (1A), higher voltage rating (25V), automotive qualified

Non-MOSFET Substitute:

TR3C475M025C0525 (Vishay Sprague) — Tantalum capacitor; included in original substitute list but not functionally equivalent to the MOSFET

Parameter Comparison

Parameter	DMN2075UDW-7	DMN2056U-7	NTJS3157NT1G	NVJS4405NT1G
Manufacturer	Diodes Inc.	Diodes Inc.	onsemi	onsemi
FET Type	N-Channel	N-Channel	N-Channel	N-Channel
Vdss (V)	20	20	20	25
Id @ 25°C (A)	2.8	4	3.2	1
Rds On Max (mOhm)	48 @ 3A, 4.5V	38 @ 3.6A, 4.5V	60 @ 4A, 4.5V	350 @ 600mA, 4.5V
Vgs(th) Max @ 250µA (V)	1	1	1	1.5
Qg Max @ 4.5V (nC)	7	4.3	15	1.5
Power Dissipation Max (mW)	500	940	1000	630
Operating Temp Range (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150
Package	SOT-363	SOT-23-3	SOT-363	SOT-363
Product Status	Not For New Designs	Active	Active	Active
RoHS3 Compliant	Yes	Yes	Yes	Yes
MSL Rating	1	1	1	1

Engineering Selection Recommendations

DMN2056U-7 (Diodes Incorporated)

This part is the manufacturer-recommended substitute from Diodes Incorporated. It exceeds the electrical requirements of the DMN2075UDW-7 with a higher continuous drain current (4A versus 2.8A) and improved power dissipation capability (940mW versus 500mW). The part maintains the same 20V Vdss rating, identical gate threshold voltage, and lower on-resistance (38mOhm versus 48mOhm). Product status is Active, ensuring long-term availability. The primary design consideration is the package change from SOT-363 to SOT-23-3, which requires PCB layout modification. RoHS3 compliance and MSL 1 rating are maintained.

NTJS3157NT1G (onsemi)

This part provides a direct package-compatible alternative in SOT-363, eliminating PCB redesign requirements. It delivers 3.2A continuous drain current and 1W power dissipation, both exceeding the original specification. The 20V Vdss rating matches the DMN2075UDW-7. On-resistance is slightly higher (60mOhm versus 48mOhm), and gate charge is elevated (15nC versus 7nC), which may impact switching speed in high-frequency applications. Product status is Active. RoHS3 compliance and MSL 1 rating are maintained.

NVJS4405NT1G (onsemi)

This part is suitable only for applications where the lower continuous drain current (1A) is acceptable. It provides a higher voltage rating (25V versus 20V), which offers additional design margin in voltage-stressed circuits. The significantly higher on-resistance (350mOhm versus 48mOhm) makes this part unsuitable for high-current or low-loss applications. This part carries automotive qualification (AEC-Q101), making it appropriate for automotive applications. Product status is Active. RoHS3 compliance and MSL 1 rating are maintained.

Frequently Asked Questions (FAQ)

Q: Can the DMN2056U-7 be used as a direct replacement for the DMN2075UDW-7?

A: The DMN2056U-7 is electrically compatible and exceeds all electrical specifications of the DMN2075UDW-7. However, the package differs (SOT-23-3 versus SOT-363), requiring PCB layout modification. Pin configuration must be verified before implementation.

Q: Why is the NTJS3157NT1G listed as a substitute if it has higher gate charge?

A: The NTJS3157NT1G meets all minimum electrical requirements and maintains the same SOT-363 package, eliminating PCB redesign. The higher gate charge (15nC versus 7nC) increases switching losses in high-frequency applications but does not prevent substitution in standard switching applications. Circuit performance must be validated for frequency-dependent designs.

Q: Is the NVJS4405NT1G suitable for all applications using the DMN2075UDW-7?

A: No. The NVJS4405NT1G is rated for only 1A continuous drain current, compared to the 2.8A requirement of the DMN2075UDW-7. This part is suitable only for applications requiring less than 1A. The significantly higher on-resistance (350mOhm) also makes it unsuitable for low-loss switching applications.

Q: What is the impact of switching from SOT-363 to SOT-23-3 package?

A: The SOT-23-3 package is larger than SOT-363, requiring PCB layout modification. Thermal performance may improve due to larger package size and better heat dissipation. Pin spacing and footprint are different; existing PCB designs cannot accommodate this package without redesign.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (DMN2056U-7, NTJS3157NT1G, and NVJS4405NT1G) are RoHS3 compliant with MSL 1 rating, matching the compliance profile of the DMN2075UDW-7.

Q: Why is TR3C475M025C0525 listed as a substitute?

A: The TR3C475M025C0525 is a tantalum capacitor and is not functionally equivalent to the DMN2075UDW-7 MOSFET. This part should not be used as a substitute for the transistor function. It may have been included in the original substitute list due to data entry or application context not provided in this reference.

Q: What is the significance of "Not For New Designs" status?

A: The DMN2075UDW-7 is classified as "Not For New Designs," indicating the manufacturer has superseded this part or is discontinuing it. New designs should use one of the active substitute parts (DMN2056U-7, NTJS3157NT1G, or NVJS4405NT1G) to ensure long-term availability and support.

Q: Can I use the NTJS3157NT1G in a design originally specified for the DMN2075UDW-7 without circuit modification?

A: The NTJS3157NT1G is pin-compatible in the SOT-363 package and meets all electrical specifications. No circuit modification is required for basic switching functionality. However, the higher gate charge may affect switching speed in high-frequency circuits, requiring performance validation.

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