STMicroelectronics STWA63N65DM2

Overview

STWA63N65DM2 from STMicroelectronics is a high-voltage N-channel Power MOSFET in the MDmesh DM2 series, featuring 650 V V_DS, 42 mΩ typ. R_DS(on), and 60 A continuous drain current at T_C = 25 °C. It integrates a fast-recovery body diode with 154 ns trr (T_j = 25 °C) and 0.94 µC Q_rr, enabling high-efficiency ZVS phase-shift and bridge-topology converters.

For engineers reviewing the STWA63N65DM2 datasheet, STWA63N65DM2 pinout, STWA63N65DM2 application, or STWA63N65DM2 equivalent, key selection criteria include its 50 V/ns dv/dt ruggedness, 100% avalanche-tested reliability, low 120 nC total gate charge, and TO-247 long leads package thermal performance (R_thJC = 0.28 °C/W).

Technical Context

This MOSFET employs ST's MDmesh DM2 superjunction technology to simultaneously minimize conduction loss (R_DS(on) × Q_g figure-of-merit) and switching loss (low C_iss = 5500 pF, C_oss = 210 pF). Its Zener-protected gate and extremely high dv/dt immunity support robust operation in hard-switched and resonant topologies.

The integrated fast-recovery body diode delivers 154 ns reverse recovery time at 60 A/100 A/µs, with soft recovery behavior confirmed by low I_RRM = 12.2 A and controlled Q_rr dispersion - critical for reducing EMI and voltage overshoot in full-bridge and LLC converters.

Key Specifications

Pinout & Package

Supplied in TO-247 long leads package (JEDEC TO-247-3L), with isolated tab (drain-connected), optimized for high-power thermal dissipation and mechanical stability in industrial power modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IPW65R041CFD7 and IXTH60N65X2, STWA63N65DM2 uniquely combines Zener gate protection, industry-leading 50 V/ns dv/dt ruggedness, and the lowest Q_rr in its class - making it optimal for mission-critical ZVS and high-reliability industrial converters.

Availability

STWA63N65DM2 is available at Aetrix Electronics and suitable for industrial motor drives, photovoltaic string inverters, and EV onboard chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for STWA63N65DM2 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 microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

This device belongs to the MDmesh DM2 Power MOSFET product line, engineered specifically for high-efficiency, high-frequency switched-mode power supplies and resonant converters demanding ultra-low Q_rr and rugged dv/dt performance.

FAQ

What is the maximum recommended gate-source voltage for reliable operation?

The absolute maximum V_GS is ±25 V, with a typical operating range of 10–15 V for full enhancement. Operation above +20 V increases gate oxide stress without meaningful R_DS(on) improvement; ST specifies 10 V as the standard test condition for R_DS(on) and Q_g. Exceeding ±25 V risks irreversible gate oxide breakdown.

Can STWA63N65DM2 be used in parallel configurations?

Yes - its positive temperature coefficient for R_DS(on) (normalized R_DS(on) rises ~1.8× from −50 °C to 150 °C) enables inherent current sharing. Successful paralleling requires matched layout, identical gate drive impedance (<2 Ω per device), and Kelvin source connections to minimize dynamic imbalance.

How does the body diode performance compare to discrete SiC Schottky diodes?

The integrated body diode achieves trr = 154 ns and Q_rr = 0.94 µC - significantly better than standard silicon MOSFETs but slower than 650 V SiC Schottkys (typically <30 ns, near-zero Q_rr). It eliminates external diode count in bridge legs but is not a replacement for SiC in ultra-high-frequency (>1 MHz) or ultra-low-loss applications.

Is the TO-247 long leads variant pin-compatible with standard TO-247?

Yes - it uses the same 3-pin TO-247-3L footprint and lead spacing (e.g., e = 5.44 mm pitch), but features extended lead length (L = 19.92 mm) for improved creepage distance in high-voltage PCB layouts. Mechanical mounting and thermal interface remain identical to standard TO-247 packages.