DMP31D7LT-13 Equivalent & Substitute Parts

Part Overview

The DMP31D7LT-13 is a P-Channel MOSFET manufactured by Diodes Incorporated, designed for surface mount applications in the SOT-523 package. This device operates at a maximum drain-to-source voltage (VDSS) of 30V with a continuous drain current of 360mA at 25°C and a maximum power dissipation of 260mW. The part is currently in active production status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity.

Key Parameters

Parameter	Value	Unit
FET Type	P-Channel	—
Technology	MOSFET (Metal Oxide)	—
Drain to Source Voltage (VDSS)	30	V
Continuous Drain Current (Id) @ 25°C	360	mA
RDS(on) Max @ 420mA, 10V	900	mOhm
Gate Threshold Voltage (VGS(th)) Max @ 250µA	2.6	V
Gate Charge (Qg) Max @ 4.5V	0.36	nC
Input Capacitance (Ciss) Max @ 15V	19	pF
Power Dissipation Max	260	mW
Operating Temperature Range	-55 to 150	°C
Package Type	SOT-523	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the DMP31D7LT-13 are identified based on electrical and mechanical parameter equivalence within the DMP31 base product family. All substitute candidates must satisfy the following criteria:

Electrical Parameter Equivalence:

Identical FET type (P-Channel)
Identical technology (MOSFET Metal Oxide)
Identical VDSS rating (30V)
Identical continuous drain current (360mA @ 25°C)
Identical RDS(on) maximum specification (900mOhm @ 420mA, 10V)
Identical gate threshold voltage (2.6V @ 250µA)
Identical gate charge (0.36 nC @ 4.5V)
Identical input capacitance (19 pF @ 15V)
Identical power dissipation (260mW)
Identical operating temperature range (-55°C to 150°C)

Mechanical Parameter Equivalence:

Identical package type (SOT-523)
Identical mounting type (Surface Mount)
Identical packaging format (Tape & Reel)

Compliance Equivalence:

ROHS3 compliance maintained
REACH unaffected status maintained

The DMP31D7LT-13, DMP31D7LT-7, and DMP31D7LTQ-7 share identical electrical and mechanical specifications. The primary distinction between DMP31D7LT-7 and DMP31D7LTQ-7 is the automotive qualification (AEC-Q101) designation on the latter, which indicates suitability for automotive applications.

Parameter Comparison

Parameter	DMP31D7LT-13	DMP31D7LT-7	DMP31D7LTQ-7
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
FET Type	P-Channel	P-Channel	P-Channel
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
VDSS (V)	30	30	30
Id @ 25°C (mA)	360	360	360
RDS(on) Max @ 420mA, 10V (mOhm)	900	900	900
VGS(th) Max @ 250µA (V)	2.6	2.6	2.6
Qg Max @ 4.5V (nC)	0.36	0.36	0.36
Ciss Max @ 15V (pF)	19	19	19
Power Dissipation Max (mW)	260	260	260
Operating Temperature Range (°C)	-55 to 150	-55 to 150	-55 to 150
Package Type	SOT-523	SOT-523	SOT-523
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Packaging Format	Tape & Reel	Tape & Reel	Tape & Reel
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Automotive Qualification	—	—	AEC-Q101

Engineering Selection Recommendations

All three parts—DMP31D7LT-13, DMP31D7LT-7, and DMP31D7LTQ-7—are electrically and mechanically equivalent and maintain active production status. Selection between these parts is determined by application requirements and compliance mandates:

DMP31D7LT-13 and DMP31D7LT-7: These parts are suitable for general industrial and consumer applications where automotive qualification is not required. Both maintain ROHS3 compliance and REACH unaffected status.

DMP31D7LTQ-7: This part carries AEC-Q101 automotive qualification and is specified for applications requiring automotive-grade reliability and qualification documentation. The AEC-Q101 qualification indicates compliance with automotive industry standards for component reliability and testing.

Selection should be based on application classification and regulatory requirements rather than electrical performance, as all three parts deliver identical electrical and thermal characteristics.

Frequently Asked Questions (FAQ)

Q: Are DMP31D7LT-13, DMP31D7LT-7, and DMP31D7LTQ-7 electrically interchangeable?

A: Yes. All three parts share identical electrical specifications including VDSS, drain current, RDS(on), gate threshold voltage, gate charge, input capacitance, and power dissipation ratings. They operate across the same temperature range and are pin-compatible in the SOT-523 package.

Q: What is the difference between DMP31D7LT-7 and DMP31D7LTQ-7?

A: The primary difference is that DMP31D7LTQ-7 carries AEC-Q101 automotive qualification, indicating compliance with automotive industry reliability and testing standards. DMP31D7LT-7 does not carry this qualification. Electrical and mechanical specifications are identical.

Q: Can I substitute DMP31D7LTQ-7 for DMP31D7LT-13 in a non-automotive application?

A: Yes. DMP31D7LTQ-7 is electrically and mechanically equivalent to DMP31D7LT-13 and will function identically in any application. The automotive qualification is an additional certification that does not restrict use in non-automotive designs.

Q: Are all three parts available in the same packaging format?

A: Yes. DMP31D7LT-13, DMP31D7LT-7, and DMP31D7LTQ-7 are all supplied in Tape & Reel (TR) format in the SOT-523 surface mount package.

Q: What compliance standards apply to these parts?

A: All three parts are ROHS3 compliant and REACH unaffected. DMP31D7LTQ-7 additionally carries AEC-Q101 automotive qualification.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. All three parts are pin-compatible in the SOT-523 package and have identical electrical characteristics. They can be used interchangeably without circuit modification.

Q: What is the operating temperature range for these MOSFETs?

A: All three parts operate across a junction temperature range of -55°C to 150°C, suitable for industrial and automotive temperature environments.

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