DMN33D8LT-13 Equivalent & Substitute Parts

Part Overview

The DMN33D8LT-13 is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 30V drain-to-source voltage with 115mA continuous drain current and 240mW power dissipation. The device is packaged in SOT-523 surface mount configuration and is classified as an active product with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the same device family. Alternative part numbers within the DMN33 series provide identical parametric specifications while differing in packaging designations, automotive qualifications, or manufacturing date codes.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	115	mA
Rds On (Max) @ 10mA, 4V	5	Ω
Gate Threshold Voltage (Vgs(th)) @ 100µA	1.5	V
Power Dissipation (Max)	240	mW
Operating Temperature Range	-55 to 150	°C
Package / Case	SOT-523	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution within the DMN33D8LT-13 family is determined by electrical parameter equivalence and mechanical compatibility. All substitute parts maintain identical specifications across the following critical parameters:

Drain-to-source voltage rating: 30V
Continuous drain current: 115mA @ 25°C
On-resistance: 5Ω @ 10mA, 4V gate-source voltage
Gate threshold voltage: 1.5V @ 100µA
Power dissipation: 240mW
Operating temperature range: -55°C to 150°C
Package configuration: SOT-523 surface mount
RoHS compliance: ROHS3 Compliant
Moisture sensitivity: MSL 1 (Unlimited)

Substitute parts differ in manufacturing date code designations (suffix -7 or -13) and automotive qualification status. Parts designated with the "Q" suffix (DMN33D8LTQ-7, DMN33D8LTQ-13) include AEC-Q101 automotive qualification, while non-Q variants (DMN33D8LT-7, DMN33D8LT-13) are standard industrial grade.

Parameter Comparison

Parameter	DMN33D8LT-13	DMN33D8LT-7	DMN33D8LTQ-13	DMN33D8LTQ-7
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
FET Type	N-Channel	N-Channel	N-Channel	N-Channel
Vdss	30 V	30 V	30 V	30 V
Id @ 25°C	115 mA	115 mA	115 mA	115 mA
Rds On (Max)	5 Ω	5 Ω	5 Ω	5 Ω
Vgs(th) (Max)	1.5 V	1.5 V	1.5 V	1.5 V
Gate Charge (Qg) @ 10V	0.55 nC	0.55 nC	0.55 nC	0.55 nC
Input Capacitance (Ciss) @ 5V	48 pF	48 pF	48 pF	48 pF
Power Dissipation (Max)	240 mW	240 mW	240 mW	240 mW
Operating Temperature	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C
Package	SOT-523	SOT-523	SOT-523	SOT-523
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	Standard	Standard	AEC-Q101	AEC-Q101
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All four part numbers (DMN33D8LT-13, DMN33D8LT-7, DMN33D8LTQ-13, DMN33D8LTQ-7) are electrically and mechanically interchangeable for applications requiring N-Channel MOSFETs with 30V rating and 115mA continuous current in SOT-523 packaging.

For standard industrial applications: DMN33D8LT-13 and DMN33D8LT-7 are suitable. Selection between these variants is based on manufacturing date code availability and inventory status.

For automotive applications: DMN33D8LTQ-13 and DMN33D8LTQ-7 must be selected. These parts carry AEC-Q101 qualification, meeting automotive industry reliability and qualification standards. The "Q" designation indicates compliance with automotive-grade testing and qualification requirements.

Date code considerations: The suffix "-13" and "-7" designations represent different manufacturing date codes. Electrical and mechanical specifications remain identical across both date codes. Selection should be based on supply chain availability and application date code requirements.

All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and active product status. No performance degradation occurs when substituting between these part numbers within the same application context.

Frequently Asked Questions (FAQ)

Q: Can DMN33D8LT-7 be used as a direct replacement for DMN33D8LT-13?

A: Yes. Both parts are electrically and mechanically identical. The suffix difference (-7 versus -13) represents manufacturing date codes only. All electrical parameters, package configuration, and compliance certifications are equivalent.

Q: What is the difference between the "Q" and non-"Q" variants?

A: The "Q" suffix (DMN33D8LTQ-7, DMN33D8LTQ-13) indicates AEC-Q101 automotive qualification. Non-Q variants (DMN33D8LT-7, DMN33D8LT-13) are standard industrial grade. Electrical specifications are identical. Use Q-variants only when automotive qualification is required.

Q: Are all four parts suitable for the same PCB layout?

A: Yes. All four parts use identical SOT-523 surface mount packaging. PCB footprints, solder pad dimensions, and mounting requirements are identical across all variants.

Q: Can I mix date codes (suffix -7 and -13) in the same production run?

A: Yes. Date code suffixes do not affect electrical performance or mechanical compatibility. Parts with different date codes can be used interchangeably in the same circuit.

Q: Which part should I select for a new automotive design?

A: Select either DMN33D8LTQ-13 or DMN33D8LTQ-7. The "Q" designation ensures AEC-Q101 compliance required for automotive applications. Choose between -13 and -7 based on current supply availability.

Q: Is there any performance difference between these parts?

A: No. All four part numbers deliver identical electrical performance. Drain-to-source voltage, drain current, on-resistance, gate threshold voltage, power dissipation, and operating temperature range are equivalent across all variants.

Q: What is the significance of the SOT-523 package?

A: SOT-523 is a surface mount package with six leads, providing compact form factor suitable for space-constrained applications. All substitute parts use this identical package configuration, ensuring mechanical and thermal compatibility.

Q: Can I substitute a non-Q part with a Q-part in an existing design?

A: Yes, electrically and mechanically. However, if the original design specified non-Q parts for cost reasons, substituting with Q-parts will increase component cost. Verify that the cost impact is acceptable for your application.

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