Diodes Incorporated DMN6066SSS-13

Overview

DMN6066SSS-13 from Diodes Incorporated is a 60V N-channel enhancement-mode MOSFET in SO-8 package, rated for 5.0A continuous drain current at V_GS = 10V, with R_DS(on) = 66 mΩ (typ. 48 mΩ), and qualified to AEC-Q101 for automotive reliability. It serves as a high-efficiency power switch in DC-DC converters and motor control circuits.

For engineers reviewing the DMN6066SSS-13 datasheet, DMN6066SSS-13 pinout, DMN6066SSS-13 application, or DMN6066SSS-13 equivalent, key selection criteria include its 60V V_DS, low R_DS(on) at 4.5V gate drive, fast switching (t_D(off) = 14.7 ns), SO-8 thermal performance (R_θJA = 44.5°C/W), and AEC-Q101 qualification status.

Technical Context

This MOSFET employs planar silicon process technology optimized for balanced conduction loss and switching speed. Its gate threshold voltage (1.0–3.0 V) enables robust turn-on with standard logic-level drivers, while its body diode exhibits t_rr = 23 ns and Q_rr = 19.7 nC for moderate-frequency synchronous rectification.

The device operates across –55°C to +150°C junction temperature range and supports pulsed drain currents up to 23 A. Thermal design leverages SO-8 leadframe construction with R_θJL = 37.0°C/W, enabling efficient heat transfer to PCB copper when mounted on 25 mm × 25 mm 1 oz FR4.

Key Specifications

Pinout & Package

Package: SO-8 surface-mount plastic package per JEDEC MS-012, with gull-wing leads, 1.27 mm pitch, and UL 94V-0 molding compound. Moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMN6066SSS-13, DMN6075SFD-13 trades 9 mΩ higher on-resistance for 15V higher breakdown, while SI2302DS-T1-BE3 sacrifices voltage rating and current capability for ultra-compact size-neither offers drop-in replacement without board redesign.

Availability

DMN6066SSS-13 is available at Aetrix Electronics and suitable for automotive motor control, DC-DC converter design, and LED backlighting applications requiring stable component supply, AEC-Q101 compliance, and SO-8 thermal performance.

Supply support for DMN6066SSS-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 sales operations across Asia, Europe, and North America.

The DMN6066SSS-13 belongs to Diodes' Automotive Power MOSFET product line, engineered specifically for high-reliability 12V/24V/48V vehicle subsystems demanding low R_DS(on), fast switching, and AEC-Q101 validation.

FAQ

What is the maximum gate-source voltage rating for DMN6066SSS-13?

The absolute maximum V_GS is ±20 V per the datasheet, but for AEC-Q101-compliant automotive operation, the recommended maximum is ±16 V. Exceeding ±16 V in automotive designs risks long-term gate oxide degradation, even if within the ±20 V absolute limit. The device is characterized for reliable operation at V_GS = 10 V and 4.5 V, with V_GS(th) ranging from 1.0 V to 3.0 V.

Does DMN6066SSS-13 have an integrated body diode, and what are its key parameters?

Yes, it features an inherent parasitic body diode between source and drain. Key parameters include forward voltage V_SD = 0.89–1.15 V at I_S = 4.5 A and V_GS = 0 V, reverse recovery time t_rr = 23 ns, and reverse recovery charge Q_rr = 19.7 nC, measured at I_S = 2.4 A and di/dt = 100 A/µs. These values support use in synchronous rectification but not ultra-high-frequency (>2 MHz) topologies.

Can DMN6066SSS-13 be used in a high-side configuration with standard 5V logic?

No-standard 5V logic cannot directly drive it in high-side configuration without a gate driver. Because its V_GS(th) upper limit is 3.0 V and R_DS(on) is specified at V_GS = 10 V, a 5V gate drive yields incomplete enhancement (R_DS(on) ≈ 97 mΩ). For high-side use, a bootstrap or isolated gate driver generating ≥10 V is required to achieve specified on-resistance and minimize conduction loss.

What thermal derating applies when DMN6066SSS-13 is mounted on a 2-layer 1 oz FR4 PCB?

When mounted on a 25 mm × 25 mm 1 oz FR4 PCB in still air, its power dissipation derates linearly above 70°C ambient at 22.5 mW/°C (R_θJA = 44.5°C/W). At 100°C ambient, maximum continuous power drops to 2.81 W (from 2.81 W at T_A = 70°C), and junction temperature must remain ≤150°C. Layout with thermal vias under the drain pad significantly improves this rating.