DMN2055UW-13 Equivalent & Substitute Parts

Part Overview

The DMN2055UW-13 is an N-Channel MOSFET manufactured by Diodes Incorporated, designed for surface mount applications in the SOT-323 package. This device operates at 20 V drain-to-source voltage with a continuous drain current of 3.1 A and maximum power dissipation of 520 mW. The part is classified as Active product status and is ROHS3 compliant. Substitute parts are necessary to address inventory availability, lead time constraints, or specific application requirements such as automotive qualification or moisture sensitivity specifications.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—
Drain to Source Voltage (Vdss)	20	V
Continuous Drain Current (Id) @ 25°C	3.1	A
Rds On (Max) @ 3.6A, 4.5V	46	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	1	V
Gate Charge (Qg) @ 4.5V	4.3	nC
Input Capacitance (Ciss) @ 10V	400	pF
Power Dissipation (Max)	520	mW
Operating Temperature Range	-55 to 150	°C
Package / Case	SC-70, SOT-323	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the DMN2055UW-13 is determined by electrical and mechanical parameter equivalence across the DMN2055 family. All substitute parts share identical core electrical specifications: 20 V Vdss, 3.1 A continuous drain current, 46 mOhm Rds On, and SOT-323 surface mount packaging. The substitution logic is based on the following criteria:

Electrical Equivalence: All parts maintain identical drain-to-source voltage, continuous drain current, on-resistance, gate threshold voltage, gate charge, input capacitance, and power dissipation ratings.

Mechanical Compatibility: All parts use the same SOT-323 package and surface mount mounting type, ensuring PCB layout and assembly compatibility.

Packaging Variant: Substitutes differ in tape and reel configuration (identified by the suffix -7 or -13) and qualification grade (standard or automotive AEC-Q101).

Qualification Grade: The DMN2055UW-13 is a standard-grade part. Automotive-qualified variants (DMN2055UWQ-7 and DMN2055UWQ-13) are electrically equivalent but carry AEC-Q101 certification for automotive applications.

Moisture Sensitivity: DMN2055UW-7, DMN2055UWQ-7, and DMN2055UWQ-13 specify MSL 1 (Unlimited), while DMN2055UW-13 does not declare this specification.

Parameter Comparison

Parameter	DMN2055UW-13	DMN2055UW-7	DMN2055UWQ-13	DMN2055UWQ-7
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
FET Type	N-Channel	N-Channel	N-Channel	N-Channel
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Vdss	20 V	20 V	20 V	20 V
Id @ 25°C	3.1 A	3.1 A	3.1 A	3.1 A
Rds On (Max) @ 3.6A, 4.5V	46 mOhm	46 mOhm	46 mOhm	46 mOhm
Vgs(th) @ 250µA	1 V	1 V	1 V	1 V
Qg @ 4.5V	4.3 nC	4.3 nC	4.3 nC	4.3 nC
Ciss @ 10V	400 pF	400 pF	400 pF	400 pF
Power Dissipation (Max)	520 mW	520 mW	520 mW	520 mW
Operating Temperature	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C
Package / Case	SC-70, SOT-323	SC-70, SOT-323	SC-70, SOT-323	SC-70, SOT-323
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Automotive Grade	—	—	AEC-Q101	AEC-Q101
MSL Rating	Not specified	1 (Unlimited)	Not specified	1 (Unlimited)

Engineering Selection Recommendations

All four parts within the DMN2055 family are electrically and mechanically equivalent and maintain Active product status. Selection between DMN2055UW-13, DMN2055UW-7, DMN2055UWQ-13, and DMN2055UWQ-7 is determined by application requirements and compliance specifications.

For Standard Industrial Applications: DMN2055UW-13 and DMN2055UW-7 are suitable. Both are ROHS3 compliant and REACH unaffected. The primary difference is tape and reel configuration and MSL rating. DMN2055UW-7 specifies MSL 1 (Unlimited), providing additional moisture handling documentation.

For Automotive Applications: DMN2055UWQ-13 and DMN2055UWQ-7 are required. Both carry AEC-Q101 automotive qualification and are ROHS3 compliant. These parts are electrically identical to the standard-grade variants but include automotive-grade testing and documentation.

Inventory and Lead Time Considerations: Current inventory levels vary: DMN2055UW-13 (942 Pcs), DMN2055UW-7 (12,600 Pcs), DMN2055UWQ-13 (925 Pcs), and DMN2055UWQ-7 (12,900 Pcs). Higher inventory availability exists for the -7 suffix variants.

Compliance Requirements: All parts are ROHS3 compliant and REACH unaffected, meeting standard environmental regulations. Automotive applications require selection of AEC-Q101 qualified variants (UWQ series).

Frequently Asked Questions (FAQ)

Q: Can DMN2055UW-7 be used as a direct replacement for DMN2055UW-13?

A: Yes. Both parts are electrically and mechanically identical, with identical Vdss (20 V), Id (3.1 A), Rds On (46 mOhm), and SOT-323 packaging. The difference is tape and reel configuration and MSL rating specification. DMN2055UW-7 specifies MSL 1 (Unlimited).

Q: What is the difference between standard-grade (UW) and automotive-grade (UWQ) variants?

A: Automotive-grade variants (DMN2055UWQ-13 and DMN2055UWQ-7) carry AEC-Q101 qualification and are subject to automotive-specific testing and documentation requirements. Electrical and mechanical specifications are identical to standard-grade parts. Automotive-grade parts are required for automotive applications; standard-grade parts are not suitable for automotive use.

Q: Are the -7 and -13 suffixes interchangeable?

A: The -7 and -13 suffixes indicate different tape and reel configurations used during manufacturing and distribution. From an electrical and mechanical standpoint, they are interchangeable. The suffix does not affect device performance or PCB compatibility. Selection between -7 and -13 is based on inventory availability and supply chain requirements.

Q: Can I use DMN2055UWQ-7 in a non-automotive application?

A: Yes. Automotive-qualified parts (DMN2055UWQ series) are electrically and mechanically identical to standard-grade parts and can be used in non-automotive applications. However, automotive-grade parts typically carry higher cost due to additional qualification testing. Standard-grade variants (DMN2055UW series) are more cost-effective for non-automotive applications.

Q: What does MSL 1 (Unlimited) mean?

A: MSL (Moisture Sensitivity Level) 1 (Unlimited) indicates that the component has unlimited shelf life without special moisture control measures. Parts without an MSL specification may require specific storage conditions. DMN2055UW-7 and DMN2055UWQ-7 explicitly specify MSL 1 (Unlimited).

Q: Are all four parts in the same SOT-323 package?

A: Yes. All four parts (DMN2055UW-13, DMN2055UW-7, DMN2055UWQ-13, and DMN2055UWQ-7) use the SC-70, SOT-323 surface mount package. PCB layout and assembly processes are identical across all variants.

Q: Which part should I select for maximum inventory availability?

A: DMN2055UW-7 and DMN2055UWQ-7 have the highest current inventory levels (12,600 Pcs and 12,900 Pcs respectively). If automotive qualification is not required, DMN2055UW-7 is the optimal choice for lead time and availability.

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