STMicroelectronics STWA70N60DM6

Overview

STWA70N60DM6 from STMicroelectronics is a high-voltage N-channel Power MOSFET in the MDmesh DM6 fast-recovery diode series, rated at 600 V V_DS, 36 mΩ typical R_DS(on), and 62 A continuous drain current at T_C = 25 °C. It features a fast-recovery body diode (t_rr = 138 ns, Q_rr = 0.69 µC), 100% avalanche tested operation, and extreme dv/dt ruggedness (100 V/ns), enabling use in ZVS phase-shift converters and high-efficiency bridge topologies.

For engineers reviewing the STWA70N60DM6 datasheet, STWA70N60DM6 pinout, STWA70N60DM6 application, or STWA70N60DM6 equivalent, key selection criteria include its low gate charge (99 nC), ultra-low C_oss,eq (697 pF), Zener-protected gate, TO-247 long leads package for enhanced creepage, and verified performance under high di/dt (1000 A/µs) and dv/dt stress.

Technical Context

This MOSFET implements ST's MDmesh DM6 silicon technology, integrating a fast-recovery intrinsic body diode with optimized charge balancing to achieve simultaneous reduction in Q_rr, t_rr, and R_DS(on)/area versus prior MDmesh generations. Its gate threshold voltage (3.25–4.75 V) and low input capacitance (C_iss = 4360 pF) support stable switching control across wide temperature ranges (−55 to 150 °C).

The device operates with guaranteed avalanche capability (E_AS = 1850 mJ), junction-to-case thermal resistance of 0.32 °C/W, and robust dv/dt immunity up to 100 V/ns under V_DS ≤ 480 V - critical for hard-switched and resonant converter reliability. Its SOA supports 220 A pulsed drain current with single-pulse safe operating area validated to 10 ms.

Key Specifications

Pinout & Package

STWA70N60DM6 is housed in a TO-247 long leads package with isolated tab (D), gate (G), and source (S) terminals. The extended lead length improves creepage distance for high-voltage isolation compliance in industrial and EV charging applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STW70N60DM6, STWA70N60DM6 adds long leads for safety-critical isolation, while IXFH70N60X3 trades ruggedness and integration for slightly higher current rating - making STWA70N60DM6 optimal for new designs demanding reliability, compact thermal design, and regulatory compliance.

Availability

STWA70N60DM6 is available at Aetrix Electronics and suitable for industrial motor drives, EV onboard chargers, renewable energy inverters, and telecom power supplies requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STWA70N60DM6 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, MEMS, power, and microcontroller solutions for automotive, industrial, and consumer markets.

STWA70N60DM6 belongs to the MDmesh DM6 product line - engineered specifically for high-efficiency, high-frequency switching in 600 V hard-switched and resonant power converters where low Q_rr, avalanche robustness, and thermal performance are critical.

FAQ

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

The maximum continuous drain current for STWA70N60DM6 at T_C = 100 °C is 39 A, as specified in Table 1 of DS12274 Rev 5. This derating reflects thermal limits of the TO-247 long leads package and ensures safe operation within the SOA boundary at elevated temperatures without exceeding T_J = 150 °C.

Does STWA70N60DM6 require an external gate resistor for stability?

Yes - a gate resistor (typically 4.7 Ω, as used in the datasheet switching time test circuit) is required to dampen ringing caused by parasitic inductance and the device's 1.5 Ω intrinsic gate resistance. Omitting it risks overshoot, shoot-through, or gate oxide stress during fast transitions above 50 V/ns.

How does the body diode recovery performance compare at 150 °C junction temperature?

At T_J = 150 °C, t_rr increases to 340 ns and Q_rr rises to 4.6 µC (Table 7), more than 6× the room-temperature values. This must be accounted for in thermal design and dead-time calculation to prevent cross-conduction losses in bridge configurations.

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

No - while both share the same 3-pin TO-247 outline, the long leads version has extended lead length (L = 19.8–20.1 mm vs. 14.2–14.8 mm) and modified mechanical dimensions (e.g., E2 = 4.9–5.1 mm), requiring dedicated PCB land patterns and stencil apertures to ensure proper solder joint formation and mechanical stability.