Diodes Incorporated DMN39M1LSSQ-13

Overview

DMN39M1LSSQ-13 from Diodes Incorporated is a 30V N-channel enhancement-mode MOSFET in SO-8 package, qualified to AEC-Q101 and PPAP-capable for automotive use. It delivers 5.5 mΩ R_DS(ON) at V_GS = 10 V, 7.5 mΩ at 4.5 V, supports 15 A continuous drain current (T_A = 25°C), and features 100% production-tested UIS robustness - deployed in motor control and DC-DC converter stages.

For engineers reviewing the DMN39M1LSSQ-13 datasheet, DMN39M1LSSQ-13 pinout, DMN39M1LSSQ-13 application, or DMN39M1LSSQ-13 equivalent, key selection criteria include its AEC-Q101 qualification, low R_DS(ON) at 4.5 V gate drive, SO-8 thermal performance (R_θJA = 62 °C/W), and 128 A pulsed drain capability under automotive ambient constraints.

Technical Context

This MOSFET employs planar trench-gate technology optimized for low conduction loss and fast switching in 12 V automotive systems. Its gate threshold voltage (1.4 V typ) enables reliable turn-on with standard logic-level drivers, while the 2311 pF input capacitance and 42 nC total gate charge (V_GS = 10 V) support efficient high-frequency PWM operation up to several hundred kHz.

The device integrates a co-packaged body diode with 0.7 V typical forward voltage and 20.5 ns reverse recovery time, enabling synchronous rectification in buck converters. Thermal design is supported by a 7.5 °C/W junction-to-case resistance and validated safe operating area (SOA) curves for single-pulse and repetitive pulse conditions up to 150 °C junction temperature.

Key Specifications

Pinout & Package

Package: SO-8 (Surface-Mount, 8-pin small-outline integrated circuit), molded green plastic, UL 94V-0 rated, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BSC010N04LS6 and SI7850DP-T1-GE3, DMN39M1LSSQ-13 provides verified AEC-Q101 compliance, balanced R_DS(ON)/Q_g trade-off, and documented PPAP readiness - making it the default choice for Tier 1-supplied motor and power management modules requiring zero-risk qualification.

Availability

DMN39M1LSSQ-13 is available at Aetrix Electronics and suitable for automotive motor control, LED backlighting, and DC-DC converter designs requiring stable component supply across extended product lifecycles.

Supply support for DMN39M1LSSQ-13 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 test facilities across Asia and the Americas.

This MOSFET belongs to Diodes' Automotive Power Solutions product line, engineered specifically for AEC-Q101-compliant switching in 12 V vehicle electrical systems - emphasizing ruggedness, thermal stability, and process-controlled consistency.

FAQ

Is DMN39M1LSSQ-13 suitable for 48 V mild-hybrid systems?

No. Its 30 V V_DSS rating limits use to 12 V nominal systems with transient overvoltage margins up to ~40 V. For 48 V architectures, Diodes offers the DMN6070LSD-13 (60 V) or DMN30H4D0L-7 (30 V with enhanced SO-8 thermal design). This part's SO-8 layout and R_θJA are optimized for 12 V thermal profiles.

What is the maximum gate-source voltage during transient conditions?

The absolute maximum V_GS is ±20 V per datasheet Section "Maximum Ratings." Exceeding this - even briefly - risks oxide breakdown. In automotive environments with ESD or load-dump coupling, a 15 V Zener clamp between gate and source is recommended to maintain safe margin below the 20 V limit.

Does the SO-8 package support thermal vias under the drain pads?

Yes. Diodes' recommended pad layout (Document DS45568, Page 6) specifies four 0.3 mm thermal vias per drain pad (Pins 5–8), filled or capped, connecting to inner-layer or backside copper planes. This reduces effective R_θJA from 62 °C/W to ≤45 °C/W in production-grade 4-layer boards.

How is the 100% UIS test performed in production?

Each unit undergoes a single-pulse unclamped inductive switching test at I_AS = 38 A, L = 0.1 mH, with V_DD = 30 V, verifying E_AS ≥ 72 mJ. The test is conducted at room temperature after final test, with pass/fail determined by post-stress R_DS(ON) drift ≤5% and leakage current within spec - ensuring field reliability in motor flyback events.