STMicroelectronics STW33N60M2

Overview

STW33N60M2 from STMicroelectronics is an N-channel 600 V, 108 mΩ typ., 26 A Power MOSFET using MDmesh M2 technology in TO-247 package. It delivers low gate charge (45.5 nC), optimized Coss profile (85 pF), and 100% avalanche-tested ruggedness for high-efficiency LLC resonant converters and hard-switched SMPS. Its Zener-protected gate enables robust gate drive in industrial power supplies.

For engineers reviewing the STW33N60M2 datasheet, STW33N60M2 pinout, STW33N60M2 application, or STW33N60M2 equivalent, key selection criteria include RDS(on) at 10 V (108 mΩ typ.), Qg (45.5 nC), Coss (85 pF), avalanche energy (450 mJ), and TO-247 thermal resistance (RthJC = 0.66 °C/W).

Technical Context

This device employs ST's MDmesh M2 strip layout and enhanced vertical structure to simultaneously reduce conduction loss and switching loss. Its low Crss (2.5 pF) and controlled dv/dt ruggedness (50 V/ns) support stable operation in high-frequency resonant topologies without spurious turn-on.

The integrated Zener-protected gate withstands ±25 V VGS transients, while its 100% unclamped inductive switching (UIS) test ensures reliability under overcurrent fault conditions. The source-drain diode exhibits low trr (375 ns @ TJ = 25 °C) and Qrr (5.6 µC), reducing commutation losses in bridge configurations.

Key Specifications

Pinout & Package

STW33N60M2 is housed in a TO-247 package with isolated tab (drain-connected). The case is electrically connected to the drain terminal, requiring insulated mounting hardware when used in high-side or floating configurations.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IPW60R099P7, STW33N60M2 offers superior dv/dt ruggedness (50 vs. 35 V/ns) and integrated gate protection, while IXFH50N60X3 trades higher Q_g and no Zener for greater pulsed current headroom-making STW33N60M2 optimal for rugged, medium-power LLC and industrial SMPS where reliability and ease of drive matter most.

Availability

STW33N60M2 is available at Aetrix Electronics and suitable for industrial switch-mode power supplies, LLC resonant converters, motor drive inverters, and uninterruptible power supplies requiring stable component supply and long-term lifecycle assurance.

Supply support for STW33N60M2 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, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.

STW33N60M2 belongs to the MDmesh M2 high-voltage Power MOSFET product line, engineered specifically for high-efficiency, high-frequency switched-mode power conversion in industrial and telecom infrastructure.

FAQ

What is the maximum continuous drain current for STW33N60M2 at 100 °C case temperature?

The maximum continuous drain current is 16 A at T_C = 100 °C, as specified in Table 1 of DS9497 Rev 4. This rating reflects thermal derating due to junction-to-case thermal resistance (0.66 °C/W) and maximum junction temperature limit of 150 °C. Operation above this current requires forced cooling or pulse-width limitation.

Does STW33N60M2 have an integrated body diode, and what are its key recovery parameters?

Yes, STW33N60M2 includes an integrated source-drain diode rated for 26 A continuous and 104 A pulsed current. Key recovery specs at T_J = 25 °C are trr = 375 ns, Qrr = 5.6 µC, and IRRM = 30 A, measured with ISD = 26 A, di/dt = 100 A/µs, and VDD = 60 V per Figure 20 and Table 7.

Can STW33N60M2 replace older STW33N60M devices in existing designs?

Yes-STW33N60M2 is a direct drop-in replacement for STW33N60M with identical pinout, package (TO-247), and voltage/current ratings. It improves R_DS(on) (108 mΩ vs. 130 mΩ typ.), reduces Q_g (45.5 nC vs. 52 nC), and adds Zener gate protection, enabling higher efficiency and improved robustness without layout changes.

What is the insulation withstand voltage rating between leads and heatsink for STW33N60M2?

The insulation withstand voltage is 2.5 kV RMS (1 s, T_C = 25 °C) from all three leads to external heatsink, as defined in Table 1. This applies only when using isolating hardware (e.g., mica washer + shoulder washer) and confirms suitability for high-isolation industrial power systems meeting IEC 60950-1 creepage/clearance requirements.