Diodes Incorporated DMPH4011SK3-13

Overview

DMPH4011SK3 from Diodes Incorporated is a P-channel enhancement-mode MOSFET rated for -40 V drain-source voltage, 11 mΩ R_DS(ON) at V_GS = -10 V, and -79 A continuous drain current at T_C = +25°C, designed for high-efficiency DC-DC converters and power management functions in thermally demanding environments up to +175°C junction temperature.

For engineers reviewing the DMPH4011SK3 datasheet, DMPH4011SK3 pinout, DMPH4011SK3 application, or DMPH4011SK3 equivalent, key selection criteria include its low R_DS(ON) at -4.5 V gate drive, 100% production-tested UIS capability, TO252 (DPAK) thermal performance with R_θJC = 1.3°C/W, and compliance with JEDEC high-reliability standards for industrial and automotive-adjacent systems.

Technical Context

This MOSFET employs a trench-gate silicon process optimized for low on-resistance while preserving fast switching speed-evidenced by t_D(OFF) = 328 ns and Q_gd = 25 nC at V_GS = -10 V. Its body diode exhibits V_SD = -0.7 V at -1 A and t_RR = 37 ns under controlled di/dt conditions.

The device operates across -55°C to +175°C junction range, with R_DS(ON) normalized to 1.0 at 25°C and rising to ~1.4× at 175°C (V_GS = -4.5 V), enabling stable performance in high-ambient thermal designs without derating penalties typical of lower-rated alternatives.

Key Specifications

Pinout & Package

Package: TO252 (DPAK), surface-mount, exposed drain pad for thermal conduction. Dimensions per Diodes package outline DS40905 Rev. 3–2: D = 6.10 mm, E = 6.58 mm, H = 9.91 mm, L = 1.59 mm, b3 = 5.33 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMTH4007LPS-13, DMPH4011SK3 trades 32% higher R_DS(ON) for 30% smaller PCB area and 15% faster turn-off; versus IPD95R1K2P7ATMA1, it delivers 100× lower R_DS(ON) and direct compatibility with existing -40 V gate drive infrastructure.

Availability

DMPH4011SK3 is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC-DC converters, and LCD backlight power supplies requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DMPH4011SK3 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 DMPH series targets high-reliability power switching in harsh thermal environments, emphasizing ruggedized packaging, extended temperature qualification, and production-level stress testing for industrial and automotive-adjacent applications.

FAQ

What is the maximum allowable gate-source voltage for DMPH4011SK3?

The absolute maximum V_GS is ±20 V per the datasheet's "Maximum Ratings" table. Exceeding this risks permanent gate oxide damage. For reliable operation, gate drive should be clamped to -10 V or -4.5 V using Zener diodes or dedicated gate drivers with programmable voltage limits.

Does DMPH4011SK3 require a heatsink in TO252 configuration?

At 79 A continuous current, a heatsink is mandatory-however, the TO252 package relies on soldering the exposed drain pad to ≥1 in² of 2 oz copper as the primary thermal path. A supplemental heatsink is only needed above 50 W dissipation or in still-air environments exceeding 60°C ambient.

Is DMPH4011SK3 qualified for automotive use per AEC-Q101?

No-the DMPH4011SK3 is not AEC-Q101 qualified. Diodes offers the automotive-grade DMPH4011SK3Q variant (with Q-suffix) for AEC-Q101-compliant applications. The standard part meets JEDEC high-reliability standards but lacks PPAP documentation and IATF 16949-manufactured lot traceability.

Can DMPH4011SK3 replace an N-channel MOSFET in high-side switching?

Yes-as a P-channel device, it is inherently suited for high-side switching without bootstrap circuitry. However, its -40 V V_DSS and negative gate drive requirement mean it cannot substitute for N-channel devices in low-side or floating-gate configurations without redesigning gate drive polarity and voltage levels.