STMicroelectronics STWA60N043DM9

Overview

STWA60N043DM9 from STMicroelectronics is a 600 V, 55 A N-channel super-junction Power MOSFET in TO-247 long leads package, featuring 43 mΩ max R_DS(on), 78.6 nC total gate charge, and fast-recovery body diode with 165 ns trr and 1.06 μC Q_rr. It is engineered for high-efficiency LLC resonant converters and ZVS phase-shift topologies requiring high dv/dt ruggedness (120 V/ns) and robust avalanche capability (839 mJ E_AS).

For engineers reviewing the STWA60N043DM9 datasheet, STWA60N043DM9 pinout, STWA60N043DM9 application, or STWA60N043DM9 equivalent, key selection criteria include its low R_DS(on) per area, ultra-low Q_rr, 100% avalanche tested reliability, and suitability for medium/high-voltage bridge configurations demanding minimal switching loss and diode recovery stress.

Technical Context

This MDmesh DM9 device employs a multi-drain silicon process to achieve industry-leading R_DS(on)/area while integrating a fast-recovery body diode with low Q_rr (1.06–2.2 μC), trr (165–215 ns), and V_SD (1.6 V). Its 0.4 °C/W R_thJC and 120 V/ns dv/dt ruggedness support high-power density thermal management and noise-immune operation in hard-switched and resonant converters.

The MOSFET delivers 38 mΩ typical R_DS(on) at V_GS = 10 V and ID = 28 A, with gate threshold voltage tightly specified at 3.5–4.5 V and C_iss = 4675 pF - enabling precise timing control in high-frequency (>300 kHz) ZVS designs where low input capacitance and predictable turn-on delay (28 ns) are critical.

Key Specifications

Pinout & Package

TO-247 long leads package: isolated tab (Drain), 3-pin through-hole configuration with 5.44 mm pitch (e), 21.0 mm width (D), and 19.92 mm length (L); designed for high-current PCB mounting and mechanical stability in industrial power modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage super-junction MOSFET applications.

Compared with STW60N043DM9 and IPP60R045CP, STWA60N043DM9 uniquely balances 600 V rating, lowest-in-class Q_rr, and long-lead isolation - making it optimal for safety-critical, high-density 400 V resonant converters where diode recovery loss and creepage govern design trade-offs.

Availability

STWA60N043DM9 is available at Aetrix Electronics and suitable for LLC resonant converters, ZVS phase-shift full-bridge topologies, and industrial AC-DC front-ends requiring stable component supply, long-lifecycle assurance, and traceable sourcing for production ramp.

Supply support for STWA60N043DM9 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 transistors, sensors, and analog ICs for industrial, automotive, and consumer markets.

This device belongs to the MDmesh DM9 super-junction MOSFET product line, developed specifically for high-efficiency, high-frequency medium-voltage power conversion - emphasizing low R_DS(on)/area, fast diode recovery, and ruggedness in resonant and soft-switching topologies.

FAQ

What is the maximum continuous drain current at T_C = 100 °C?

The STWA60N043DM9 supports 35 A continuous drain current at case temperature of 100 °C, as specified in Table 1 of DS14232 Rev 4. This rating assumes proper heatsinking to maintain T_C ≤ 100 °C and accounts for R_DS(on) increase with junction temperature - verified via normalized R_DS(on) vs. T_J curve (Figure 10).

Is the body diode fully characterized for reverse recovery?

Yes - the source-drain diode is fully characterized across temperature and current: trr = 165 ns (25 °C) and 215 ns (150 °C), Q_rr = 1.06 μC (25 °C) and 2.2 μC (150 °C), I_RRM = 11 A (25 °C) and 18 A (150 °C), all measured at ISD = 56 A, di/dt = 100 A/μs, VDD = 60 V per Table 7 and Figure 15 test circuit.

Does this MOSFET require gate resistors for reliable operation?

Yes - the datasheet recommends RG = 4.7 Ω for resistive load switching tests (Table 6), and layout guidelines emphasize low-inductance gate loop with localized gate resistor to suppress oscillation. The intrinsic gate resistance is 0.78 Ω, so external RG controls dV/dt and switching speed while preventing gate voltage overshoot.

How does the TO-247 long leads variant differ electrically from short leads?

There is no electrical difference: STWA60N043DM9 (long leads) and STW60N043DM9 (short leads) share identical die, R_DS(on), Q_g, trr, and avalanche ratings. The long leads provide increased creepage distance (≥8 mm) for reinforced insulation in medical/industrial systems, while short leads reduce lead inductance for ultra-high-frequency layouts.