STMicroelectronics STW65N60DM6

Overview

STW65N60DM6 from STMicroelectronics is a high-voltage N-channel Power MOSFET in the MDmesh DM6 fast-recovery diode series, designed for high-efficiency bridge topologies and ZVS phase-shift converters. It delivers 600 V V_DS, 71 mΩ R_DS(on) max at 10 V V_GS, 46 A continuous drain current at T_C = 25 °C, and features ultra-low Q_rr (0.58 µC typ.) and fast trr (116 ns typ.) for hard-switching and resonant applications.

For engineers reviewing the STW65N60DM6 datasheet, STW65N60DM6 pinout, STW65N60DM6 application, or STW65N60DM6 equivalent, key selection criteria include its 100 V/ns dv/dt ruggedness, 900 mJ single-pulse avalanche energy, Zener-protected gate, and TO-247 package with validated fast-recovery body diode performance under high di/dt conditions.

Technical Context

This MOSFET employs ST's MDmesh DM6 silicon process to achieve simultaneous optimization of conduction loss (R_DS(on) = 60 mΩ typ.), switching loss (Q_g = 65.2 nC, C_iss = 2500 pF), and reverse recovery behavior (Q_rr = 0.58 µC, trr = 116 ns at T_J = 25 °C). Its gate threshold voltage (V_GS(th) = 3.25–4.75 V) ensures robust noise immunity in high-noise power stages.

The device integrates a fast-recovery body diode with I_SD = 46 A continuous and I_SDM = 140 A pulsed capability, enabling synchronous rectification and bidirectional current handling in LLC and phase-shifted full-bridge topologies without external diodes. Its 0.34 °C/W R_thJC supports high-power density thermal design.

Key Specifications

Pinout & Package

STW65N60DM6 uses a TO-247 package with standard 3-pin configuration and isolated tab (Drain-connected). The case is electrically tied to the Drain terminal, requiring insulated mounting hardware in high-side configurations.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STW65N60DM6, STW62N60DM6 offers lower R_DS(on) and gate charge for improved efficiency at high load, while IPW65R075CFD7 provides automotive qualification and tighter parameter distribution at the cost of higher Q_rr and reduced dv/dt ruggedness (50 V/ns).

Availability

STW65N60DM6 is available at Aetrix Electronics and suitable for industrial motor drives, server power supplies, uninterruptible power systems, and renewable energy inverters requiring stable component supply across multi-year production cycles.

Supply support for STW65N60DM6 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, specializing in power management, microcontrollers, sensors, and automotive ICs with over 45 years of industrial-grade reliability.

This device belongs to the MDmesh DM6 Power MOSFET product line, engineered specifically for high-frequency, high-efficiency switching in telecom, server, and industrial power conversion where low Q_rr and dv/dt ruggedness are critical.

FAQ

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

The STW65N60DM6 supports 29 A continuous drain current at T_C = 100 °C, as specified in Table 1 of DS12314 Rev 5. This derating reflects thermal limits of the TO-247 package with R_thJC = 0.34 °C/W and junction-to-case power dissipation constraints.

Does this MOSFET require an external gate resistor for safe operation?

Yes - a 4.7 Ω gate resistor is recommended per Figure 13 and 14 test circuits in DS12314. This value balances switching speed (td(on)/td(off) < 80 ns) and gate oscillation suppression, especially critical given the device's 2500 pF C_iss and 1.7 Ω intrinsic gate resistance.

Can STW65N60DM6 replace older MDmesh DM2 series MOSFETs directly?

No - although pin-compatible in TO-247, the DM6 generation has significantly lower Q_rr (0.58 µC vs. ~2.5 µC) and faster trr (116 ns vs. ~350 ns), requiring gate drive timing adjustments and reduced dead time to avoid shoot-through in legacy layouts.

Is the body diode suitable for synchronous rectification in LLC resonant converters?

Yes - the fast-recovery body diode achieves 116 ns trr and 10 A I_RRM at 25 °C, enabling efficient synchronous rectification in 200–500 kHz LLC converters without external Schottky diodes, provided gate timing accounts for Q_rr-dependent reverse recovery tail current.