Diodes Incorporated DMN6066SSD-13

Overview

DMN6066SSD from Diodes Incorporated is a 60V dual N-channel enhancement-mode MOSFET in SO-8 package, with R_DS(on) = 66 mΩ @ V_GS = 10 V, I_D = 4.4 A, and 100% production-tested UIS capability. It serves as a high-efficiency synchronous rectifier or half-bridge switch in DC-DC converters and motor control stages.

For engineers reviewing the DMN6066SSD datasheet, DMN6066SSD pinout, DMN6066SSD application, or DMN6066SSD equivalent, key selection criteria include its dual-die SO-8 layout, 97 mΩ R_DS(on) at 4.5 V drive, 37.5 mJ single-pulse avalanche energy, and thermal resistance of 58 °C/W (dual-die configuration).

Technical Context

This dual N-channel MOSFET integrates two independent silicon dies in a single SO-8 package, enabling compact half-bridge or dual-switch topologies without inter-device layout mismatch. Each channel supports 60 V V_DSS, ±20 V V_GS, and operates up to +150 °C junction temperature.

Its gate charge profile (Q_g = 10.3 nC @ 10 V) and fast switching (t_r = 2.4 ns, t_f = 5.4 ns) are optimized for high-frequency synchronous buck converters. The body diode exhibits V_SD = 0.89–1.15 V at 4.5 A and t_rr = 22.2 ns, supporting efficient freewheeling with low reverse recovery loss.

Key Specifications

Pinout & Package

Package: SO-8, surface-mount, dual-die configuration with internally isolated N-channel channels. Molded plastic body, matte tin annealed terminals, JEDEC-compliant footprint (4.90 mm × 6.00 mm), moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMN6066SSD, DMN6068SSD trades current rating for lower on-resistance, while SI6926ADQ offers miniaturization at the expense of leaded package compatibility and verified UIS ruggedness-making DMN6066SSD optimal for thermally demanding, reliability-critical industrial power stages.

Availability

DMN6066SSD is available at Aetrix Electronics and suitable for motor controls, DC-DC converters, LED backlighting, and power-management functions requiring stable component supply across industrial, computing, and automotive-adjacent designs.

Supply support for DMN6066SSD 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 distribution operations across Asia, Europe, and the Americas.

The DMN6066SSD belongs to Diodes' PowerMOS™ dual-channel MOSFET product line, engineered specifically for high-efficiency, space-constrained power conversion where dual-switch integration, thermal reliability, and production-tested ruggedness are mandatory.

FAQ

What is the maximum continuous drain current per channel at 70°C ambient?

The DMN6066SSD supports 3.5 A continuous drain current per channel at T_A = +70°C with standard PCB mounting (25 mm × 25 mm × 1.6 mm FR4, 1 oz copper). This derating reflects thermal limits under realistic board-level conditions-not just junction temperature alone-and assumes both channels operate simultaneously.

Does the DMN6066SSD have integrated ESD protection on gate terminals?

No, the DMN6066SSD does not include on-die ESD protection structures. Its gate oxide is rated for ±20 V absolute maximum V_GS, and external gate resistors (≥10 Ω) and TVS clamps are recommended in systems exposed to handling or system-level ESD per IEC 61000-4-2. The device passes JEDEC JESD22-A114 qualification but relies on board-level protection.

Can both channels be paralleled to increase current capacity?

No-channels are electrically isolated and not matched for parallel operation. Their R_DS(on) tolerances (±20% typical), thermal coupling differences, and independent gate terminals prevent safe current sharing. For higher current, use a single-channel part with appropriate rating or implement external current-sharing circuitry.

Is the SO-8 package leadframe exposed for thermal enhancement?

Yes-the SO-8 package uses an exposed copper leadframe beneath the drain terminals (Pins 5 and 6), which provides a low-thermal-resistance path to PCB copper. When soldered to ≥100 mm² of 1 oz internal or external copper pour, R_θJA improves from 58 °C/W to ≤40 °C/W, enabling sustained 4.4 A operation in compact industrial modules.