STMicroelectronics STW75N60M6-4

Overview

STW75N60M6-4 from STMicroelectronics is an N-channel 600 V, 32 mΩ typ., 72 A MDmesh M6 superjunction power MOSFET in TO247-4 package, featuring a dedicated driver source pin for reduced gate loop inductance and enhanced switching control in high-frequency LLC and boost PFC converters.

For engineers reviewing the STW75N60M6-4 datasheet, STW75N60M6-4 pinout, STW75N60M6-4 application, or STW75N60M6-4 equivalent, key selection criteria include R_DS(on) (32 mΩ typ.), Q_g (106 nC), C_{oss_eq} (851 pF), avalanche energy E_AS (1.4 J), and dv/dt ruggedness (100 V/ns) under hard-switching conditions.

Technical Context

This MOSFET implements ST's MDmesh M6 technology-optimized for high-voltage, high-efficiency resonant and hard-switched topologies. Its extra driver source pin decouples gate drive return from power source current, minimizing common-source inductance and enabling stable operation at >300 kHz with low switching losses.

The device integrates Zener-protected gate oxide, 100% unclamped inductive avalanche testing (I_AR = 11 A), and robust dv/dt immunity (100 V/ns). Its C_iss/C_oss/C_rss ratio (4850/380/3.5 pF) supports fast, low-loss transitions while maintaining EMI controllability in high-density power stages.

Key Specifications

Pinout & Package

TO247-4 package with isolated tab (Drain), standard Gate, Power Source (Source), and dedicated Driver Source (Kelvin source) terminals. The 4-pin configuration eliminates source inductance impact on gate control loop.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage power switching applications.

Compared with IXTH75N60L2 and IPP60R041C7, STW75N60M6-4 delivers superior high-frequency performance via its driver source pin and lower C_{oss_eq}, making it optimal for LLC and high-density PFC where gate loop integrity and switching loss dominate thermal design.

Availability

STW75N60M6-4 is available at Aetrix Electronics and suitable for LLC resonant converters, boost PFC front-ends, and solar inverter DC-link stages requiring stable component supply, long-lifecycle support, and traceable sourcing for industrial OEM programs.

Supply support for STW75N60M6-4 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, power, microcontroller, and sensor solutions for automotive, industrial, and consumer markets.

This device belongs to the MDmesh M6 superjunction MOSFET product line-engineered specifically for high-efficiency, high-frequency AC-DC and DC-DC conversion in data center, renewable energy, and industrial power systems.

FAQ

What is the purpose of the fourth pin (Driver Source) on the STW75N60M6-4?

The fourth pin is a Kelvin connection to the source, dedicated solely to gate driver return current. It isolates the gate control loop from high-di/dt power source current, preventing voltage spikes that cause false turn-on and enabling stable operation above 300 kHz without added gate resistors or ferrite beads.

How does the 100% avalanche testing benefit system reliability?

Every STW75N60M6-4 undergoes unclamped inductive switching validation at I_AR = 11 A and E_AS = 1.4 J. This ensures consistent ruggedness against transient overcurrents-such as transformer saturation or short-circuit events-without requiring external protection circuitry or derating in mission-critical industrial and solar applications.

Can this MOSFET replace older MDmesh devices like STW75N60M5 in existing designs?

Yes-STW75N60M6-4 is pin-compatible with STW75N60M5 in TO247-4 and offers lower R_DS(on) (32 mΩ vs. 36 mΩ typ), improved C_{oss_eq} (851 pF vs. 920 pF), and enhanced dv/dt immunity (100 V/ns vs. 75 V/ns). No layout changes are needed, but gate drive strength should be verified due to higher Q_g (106 nC vs. 95 nC).

What thermal performance can be expected with standard TO247 heatsinking?

With a typical 0.28 °C/W junction-to-case thermal resistance and a well-mounted heatsink (R_th,CA ≈ 0.5 °C/W), the device sustains 72 A continuous current at T_C = 25 °C. At T_C = 100 °C, rated current drops to 45 A-matching its SOA curve limit for 10 ms pulses at 300 V V_DS.