Diodes Incorporated DMP4016SSSQ-13

Overview

DMP4016SSSQ from Diodes Incorporated is a 40V P-channel enhancement-mode MOSFET in SO-8 package, rated for -10.8A continuous drain current at V_GS = -10V, with R_DS(ON) of 11mΩ (max), AEC-Q101 qualified, and designed for automotive DC-DC converters and power-management functions.

For engineers reviewing the DMP4016SSSQ datasheet, DMP4016SSSQ pinout, DMP4016SSSQ application, or DMP4016SSSQ equivalent, this part supports high-reliability automotive power switching where low on-resistance, robust UIS capability, and thermal stability across -55°C to +150°C are critical selection criteria.

Technical Context

This MOSFET operates as a high-side switch in synchronous buck converters and load-switching circuits, leveraging its negative gate threshold (-1.5V to -2.5V) and low input capacitance (C_iss = 5697pF) to enable fast, efficient switching at up to 100kHz. Its body diode exhibits V_SD = -0.7V at -1A, supporting freewheeling in inductive topologies.

The device is characterized for stable R_DS(ON) performance over temperature (normalized variation <1.3× from -55°C to +150°C at V_GS = -10V), and features 338mJ avalanche energy rating (E_AS) with 100% production-tested UIS-critical for automotive transient resilience.

Key Specifications

Pinout & Package

Package: SO-8 (Surface-mount, 8-lead, 1.27mm pitch), molded green plastic, UL 94V-0 rated, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMT4007LPSQ-13 and IPD250N04LG, DMP4016SSSQ balances AEC-Q101 compliance, SO-8 manufacturability, and 11mΩ/10.8A capability-making it optimal for cost-sensitive, volume automotive modules needing validated reliability without over-spec'ing thermal or current margins.

Availability

DMP4016SSSQ is available at Aetrix Electronics and suitable for automotive DC-DC converters, high-side load switches, and power management systems requiring stable component supply with full AEC-Q101 traceability and IATF 16949 sourcing.

Supply support for DMP4016SSSQ 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design, manufacturing, and test facilities certified to IATF 16949 and ISO 9001 standards.

The DMP4016SSSQ belongs to Diodes' AEC-Q101-qualified automotive MOSFET product line, engineered specifically for high-reliability power switching in engine control, body electronics, and ADAS subsystems where thermal robustness and transient immunity are non-negotiable.

FAQ

What is the maximum pulsed drain current rating for DMP4016SSSQ?

The DMP4016SSSQ is rated for -112A pulsed drain current (I_DM) under 10μs pulse width and 1% duty cycle conditions. This rating reflects short-duration surge capability during inductive turn-off events, not steady-state operation. Thermal limits still apply: junction temperature must remain below +150°C, and PCB layout must support adequate heat spreading for such pulses.

Does DMP4016SSSQ require a gate resistor for automotive EMI compliance?

Yes-a series gate resistor (typically 10Ω–47Ω) is recommended to control dV/dt and reduce EMI in automotive environments. The device's Q_gd = 18nC and low C_iss make it sensitive to fast edge rates; uncontrolled switching can exceed CISPR 25 Class 5 radiated emission limits. Resistor value must balance EMI suppression against switching loss increase.

Can DMP4016SSSQ be used in synchronous rectification with N-channel counterparts?

No-it is a P-channel device intended for high-side switching only. For synchronous rectification in buck converters, it pairs with an N-channel low-side MOSFET (e.g., DMN3025LSD), not as a synchronous rectifier itself. Its body diode is not optimized for reverse recovery in rectifier roles; dedicated synchronous rectifier MOSFETs have lower Q_RR and t_RR.

Is the SO-8 package thermally enhanced with an exposed drain pad?

Yes-the SO-8 package features an exposed drain pad (pin 8) that serves as the primary thermal conduction path. When soldered to ≥1in² of 2oz copper on the PCB bottom layer, thermal resistance drops from R_θJA = 80.2°C/W to 60.4°C/W, enabling 2.1W continuous power dissipation. Layout must follow Diodes' recommended pad dimensions (X = 0.802mm, Y = 1.505mm) for optimal thermal transfer.