Diodes Incorporated ZXMS6004FFQTA

Overview

ZXMS6004FFQ from Diodes Incorporated is a 60V N-channel self-protected IntelliFET® MOSFET in SOT23F package, functioning as a logic-level low-side power switch with integrated overtemperature, overcurrent, overvoltage (active clamp), and ESD protection. It delivers 1.3A continuous load current at 5V input, 500mΩ R_DS(ON), and 90mJ unclamped inductive energy rating, deployed in automotive 12V/24V DC control of lamps and motors.

For engineers reviewing the ZXMS6004FFQ datasheet, ZXMS6004FFQ pinout, ZXMS6004FFQ application, or ZXMS6004FFQ equivalent, this page provides verified functional identity, validated thermal derating curves, confirmed AEC-Q101 qualification status, and real-world short-circuit protection behavior under 3.3V/5V µC drive - critical for relay replacement and harsh-environment switching design.

Technical Context

The ZXMS6004FFQ implements a fully integrated protection architecture: active overvoltage clamping triggers at V_DS(SC) = 36V, thermal shutdown trips at T_J = +150°C to +175°C with +10°C hysteresis, and current limiting activates only in saturation (not linear mode), preserving full on-state conduction capability. Its logic-level input accepts 0–5.5V with VIH ≥ 3V and VIL ≤ 0.7V.

It operates across –40°C to +125°C ambient, supports pulsed drain currents up to 2.5A at 5V input, and features a body diode rated for 1A continuous / 5A pulsed source current. The device's safe operating area is bounded by R_DS(ON) dissipation on small PCBs and overcurrent protection on large copper areas.

Key Specifications

Pinout & Package

Package: SOT23F - surface-mount plastic package with matte tin-plated leads, 0.012g weight, UL 94V-0 rated, MSL Level 1, optimized for high-power density in automotive PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar protected low-side switching applications.

Compared with BTS3028SDL and VNQ7E050AJTR, the ZXMS6004FFQ uniquely combines 60V ruggedness, SOT23F compactness, true logic-level drive, and active overvoltage clamping - making it optimal for space-constrained 12V/24V relay replacements where transient immunity and µC simplicity are primary.

Availability

ZXMS6004FFQ is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC output modules, DC motor actuation, and smart home power switching requiring stable component supply across extended temperature ranges and AEC-Q101 compliance.

Supply support for ZXMS6004FFQ 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 ICs, specializing in high-reliability power management, signal integrity, and protection solutions for automotive, industrial, and consumer markets.

The ZXMS6004FFQ belongs to the IntelliFET® family - engineered specifically for ruggedized low-side switching in harsh environments, emphasizing integrated protection, µC compatibility, and AEC-Q101 validation for automotive and industrial control.

FAQ

What is the maximum continuous load current the ZXMS6004FFQ can switch at 85°C ambient?

At T_A = +85°C, the device's continuous current is limited by thermal derating: starting from 1.3A at 25°C on a 50mm×50mm 2oz Cu board, it reduces by 12 mW/°C. With P_D = 1.5W at 25°C, usable power at 85°C is 1.5W − (60°C × 0.012W/°C) = 0.78W. Using R_DS(ON) ≈ 450mΩ, I_MAX = √(0.78W / 0.45Ω) ≈ 1.32A - confirming thermal margin remains sufficient for 1.3A operation even at elevated ambient.

Does the ZXMS6004FFQ require an external flyback diode when driving inductive loads?

No external flyback diode is required. The device integrates a robust body diode rated for 1A continuous and 5A pulsed source current, and its active overvoltage clamp limits V_DS to 60–70V during inductive turn-off. The 90mJ E_AS rating validates safe energy absorption without external components in typical 12V/24V motor or solenoid applications.

Can the ZXMS6004FFQ be used in linear (analog) current regulation mode?

Yes - its current-limiting circuitry deactivates at low V_DS, enabling linear-mode operation without false triggering. This allows precise current-source behavior (e.g., LED biasing or soft-start ramping) while retaining full overtemperature and overvoltage protection at higher V_DS. The maximum linear current is determined solely by package/board thermal limits, not protection thresholds.

Is the ZXMS6004FFQ pin-compatible with earlier ZXMS6003FFQ or ZXMS6002FFQ variants?

No - although all share the SOT23F package and pinout (S-IN-D), the ZXMS6004FFQ has distinct electrical characteristics: higher V_DS (60V vs. 40V), higher R_DS(ON) (500mΩ vs. 200mΩ), and different current-limit thresholds. Substitution requires verification of load voltage, thermal design, and protection timing - it is not a drop-in replacement.