Diodes Incorporated DMN3061SQ-7

Overview

DMN3061SQ from Diodes Incorporated is an AEC-Q101-qualified N-channel enhancement-mode MOSFET in SOT23 package, rated for 30V V_DSS, 59 mΩ R_DS(ON) @ 10V V_GS, and 2.9A I_D at +25°C. It serves as a low-voltage power switch in automotive body electronics, including LED lighting control and sensor interface circuits.

For engineers reviewing the DMN3061SQ datasheet, DMN3061SQ pinout, DMN3061SQ application, or DMN3061SQ equivalent, key selection criteria include its 4.5V gate drive compatibility, 98 mΩ R_DS(ON) at 4.5V, AEC-Q101 qualification, thermal resistance of 101 °C/W (with copper pad), and SOT23 footprint constraints.

Technical Context

This MOSFET employs a planar trench-gate structure optimized for low R_DS(ON) and fast switching with minimal gate charge (Q_g = 5.5 nC @ 10V). Its threshold voltage range (0.5–1.8 V) ensures reliable turn-on under low-voltage microcontroller GPIO drive.

The device integrates a body diode with V_SD = 0.7–1.0 V @ 1A and supports pulsed drain currents up to 24 A. Thermal design relies on its 101 °C/W R_θJA when mounted on a 1-inch² copper pad, enabling operation up to +150°C junction temperature.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic package with 3 terminals, 0.008 g mass, UL 94V-0 rated molding compound, and matte tin–annealed copper leadframe.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel MOSFET switching applications.

Compared with DMN3025LSD-13 and NTMFS4C08NT1G, the DMN3061SQ uniquely balances 4.5V drive capability, AEC-Q101 compliance, and SOT23 footprint-making it optimal for space-constrained automotive switches where gate drive simplicity and qualification are mandatory.

Availability

DMN3061SQ is available at Aetrix Electronics and suitable for automotive LED control, body electronics load switching, and industrial sensor interface protection requiring stable component supply and long-term lifecycle assurance.

Supply support for DMN3061SQ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The DMN3061SQ belongs to Diodes' AEC-Q101-qualified power MOSFET product line, engineered specifically for automotive body electronics and industrial control applications demanding high reliability at elevated temperatures.

FAQ

Is DMN3061SQ suitable for 3.3V GPIO drive?

Yes. With a gate threshold voltage range of 0.5–1.8 V and guaranteed R_DS(ON) of 196 mΩ at 3.3V V_GS, the DMN3061SQ fully enhances using standard 3.3V microcontroller outputs. Its low C_iss (233 pF) further ensures minimal gate drive current demand.

What is the maximum allowable junction temperature?

The absolute maximum junction temperature is +150°C, verified per AEC-Q101 testing. Derating begins above +70°C ambient when mounted on a 1-inch² copper pad (R_θJA = 101 °C/W), limiting continuous power dissipation to ~1.23 W at +70°C ambient.

Does DMN3061SQ include integrated ESD protection?

No. The DMN3061SQ does not integrate on-die ESD protection structures beyond standard MOSFET gate oxide robustness (±20V V_GSS). External TVS diodes or RC filters are recommended for I/O lines exposed to automotive transients per ISO 7637-2.

Can DMN3061SQ replace a mechanical relay in low-power applications?

Yes. With 2.9A continuous current, 30V blocking, and no moving parts, it replaces relays in ≤30W resistive or inductive loads (e.g., indicator lamps, small solenoids). Its 24A pulsed rating accommodates inrush currents, and AEC-Q101 qualification ensures >1 million cycles of reliable operation.