STMicroelectronics STW48N60M6-4

Overview

STW48N60M6 from STMicroelectronics is an N-channel 600 V, 39 A MDmesh M6 superjunction power MOSFET in TO-247 package, featuring 61 mΩ typ. R_DS(on), 57 nC total gate charge, and 100% avalanche-tested ruggedness. It delivers low conduction loss and fast switching for high-efficiency LLC and boost PFC converters operating at 100–300 kHz.

For engineers reviewing the STW48N60M6 datasheet, STW48N60M6 pinout, STW48N60M6 application, or STW48N60M6 equivalent, key selection criteria include its 15 V/ns diode recovery dv/dt rating, 950 mJ single-pulse avalanche energy, Zener-protected gate, and optimized C_oss eq. of 415 pF for resonant topologies.

Technical Context

This MOSFET employs ST's MDmesh M6 silicon technology, integrating a charge-compensated superjunction structure that achieves 61 mΩ typ. R_DS(on) at 600 V while maintaining low C_iss (2578 pF) and ultra-low C_rss (3.1 pF). Its gate threshold voltage (3.25–4.75 V) enables robust TTL/CMOS drive compatibility.

The device supports hard-switched and resonant operation with verified MOSFET dv/dt ruggedness up to 100 V/ns and diode recovery dv/dt capability of 15 V/ns under ISD ≤ 39 A and di/dt ≤ 400 A/µs - critical for reliable operation in high-frequency bridge and synchronous rectifier stages.

Key Specifications

Pinout & Package

TO-247 package: isolated metal tab (Drain), 3-pin through-hole outline with 20.0 mm × 15.6 mm footprint and 4.5 mm profile; designed for high-power thermal dissipation via heatsink mounting to Drain tab.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 600 V superjunction MOSFET applications.

Compared with IXFH44N60X3 and IPP60R099C7, STW48N60M6 offers the best balance of low R_DS(on), high avalanche robustness, and integrated gate protection - making it optimal for industrial PFC and LLC where reliability and thermal headroom are prioritized over minimal gate charge.

Availability

STW48N60M6 is available at Aetrix Electronics and suitable for server power supplies, industrial LLC resonant converters, and solar inverter DC-DC stages requiring stable component supply across multi-year production cycles.

Supply support for STW48N60M6 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The MDmesh M6 product line targets high-efficiency AC-DC and DC-DC conversion, emphasizing reduced switching losses and enhanced ruggedness for mission-critical power infrastructure applications.

FAQ

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

The STW48N60M6 supports 25 A continuous drain current at T_C = 100 °C, as specified in Table 1 of DS12685 Rev 3. This derating reflects thermal limitations of the TO-247 package and silicon, not gate drive capability. Operation above this current requires active cooling or pulse-width limitation to stay within SOA boundaries.

Does the device include integrated gate protection?

Yes - the STW48N60M6 integrates a Zener diode between gate and source to clamp V_GS within ±25 V, protecting the gate oxide from overvoltage transients. This eliminates the need for external gate Zener diodes in most standard gate driver configurations, reducing BOM count and PCB area.

How does the 100% avalanche testing impact reliability in real-world designs?

Each STW48N60M6 unit undergoes individual unclamped inductive switching (UIS) test per JEDEC JESD24-11, verifying minimum 950 mJ single-pulse avalanche energy. This ensures consistent ruggedness against inductive kickback, short circuits, and startup surges - directly improving field failure rates in motor drives and SMPS with poor layout margins.

Can STW48N60M6 replace STW48N60M5 in existing designs?

Yes - STW48N60M6 is a direct drop-in replacement for STW48N60M5, sharing identical TO-247 package, pinout, and voltage/current ratings. It improves R_DS(on) by ~12% (69 → 61 mΩ typ.) and enhances dv/dt ruggedness, allowing immediate efficiency gains without layout or driver changes.