Diodes Incorporated DMS3014SSS-13

Overview

DMS3014SSS-13 from Diodes Incorporated is an N-channel enhancement-mode MOSFET monolithically integrated with a Schottky diode in a single SO-8 die (DIOFET), delivering 30 V V_DSS, 10.4 A I_D at 4.5 V_GS, 9–14 mΩ R_DS(on), 0.37–0.5 V V_SD, and 19.3–45.7 nC Q_g. It targets high-frequency synchronous rectification and power switching in automotive body control modules, USB PD adapters, and DC-DC converters where low conduction and switching losses are critical.

For engineers reviewing the DMS3014SSS-13 datasheet, DMS3014SSS-13 pinout, DMS3014SSS-13 application, or DMS3014SSS-13 equivalent, key selection criteria include its integrated Schottky's 5 A continuous current rating, avalanche ruggedness (30 A I_AR, 45 mJ E_AR), AEC-Q101 qualification, and SO-8 thermal performance (R_θJA = 81.3 °C/W on 1-in² FR-4).

Technical Context

This device implements a patented monolithic DIOFET architecture that co-integrates the MOSFET channel and Schottky anode/cathode on one silicon die-eliminating bond-wire parasitics and enabling simultaneous optimization of R_DS(on), V_SD, and Q_rr. Its gate threshold voltage (1.0–2.2 V) and low C_iss/C_rss ratio (2296 pF / 120 pF) support stable operation in 48 V input buck converters and reverse-polarity protection circuits.

The SO-8 package provides dual-source/drain terminals per side for parallel current paths, supporting high-current routing while maintaining low-inductance source return paths. Thermal design leverages the 1.55 W P_D rating and normalized R_DS(on) stability across –55 to +150 °C ambient, validated via transient thermal response curves up to 1000 s pulse duration.

Key Specifications

Pinout & Package

Package: SO-8 (Surface-mount, 8-pin, 4.90 × 6.00 mm footprint, 1.45 mm height, RoHS-compliant green molding compound, UL 94V-0 rated).

Key Features

Applications

Availability

DMS3014SSS-13 is available at Aetrix Electronics and suitable for automotive body control modules, USB-C power delivery adapters, and industrial DC-DC buck converters requiring stable component supply, AEC-Q101 compliance, and long-term lifecycle continuity.

Supply support for DMS3014SSS-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, specializing in high-reliability power management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.

The DMS3014SSS belongs to Diodes' DIOFET product line-engineered specifically to replace discrete MOSFET + Schottky combinations in space-constrained, high-efficiency power conversion applications demanding low R_DS(on), low V_SD, and robust avalanche capability.

FAQ

Is DMS3014SSS-13 pin-compatible with standard SO-8 N-channel MOSFETs?

No-it uses a non-standard SO-8 pinout with four paralleled source pins (pins 1–4) and four paralleled drain pins (pins 5–8), unlike conventional SO-8 MOSFETs with single-source/single-drain configurations. Layout must follow Diodes' recommended pad dimensions (X=0.802 mm, Y=1.505 mm) and thermal relief patterns to ensure mechanical reliability and thermal performance.

What is the maximum continuous current rating when mounted on a 2-layer PCB?

At T_A = 85 °C, the datasheet specifies 6.6 A continuous drain current with 2 oz. copper on a 1 in × 1 in FR-4 board. On a standard 2-layer 1 oz. copper PCB without thermal vias, derating to ≤4.5 A is required to maintain T_J ≤ 150 °C, based on measured R_θJA increase of ~35% versus the reference board.

Does the integrated Schottky diode support bidirectional current flow?

No-the Schottky is monolithically integrated as a unidirectional source-to-drain freewheeling path (anode tied to source, cathode to drain). It conducts only during reverse-biased body-diode conduction events and cannot be used as a standalone bidirectional switch or rectifier in AC applications.

Why is DMS3014SSS marked "NOT RECOMMENDED FOR NEW DESIGN"?

Diodes Incorporated issued this notice due to planned obsolescence-no functional replacement has been designated, and last-time-buy windows apply. Customers designing new products should evaluate alternatives such as DMN3016LSD-13 (30 V, 12 A, 7.5 mΩ) or DMP3018LSS-13 (30 V, 11.5 A, 8.2 mΩ), both with compatible SO-8 footprints and AEC-Q101 ratings.