STMicroelectronics STF12N60M2

Overview

STF12N60M2 from STMicroelectronics is an N-channel 600 V, 395 mΩ typ., 9 A MDmesh M2 Power MOSFET in TO-220FP package, optimized for high-efficiency SMPS, PFC stages, and industrial motor drives with low turn-off switching losses and Zener-protected gate.

For engineers reviewing the STF12N60M2 datasheet, STF12N60M2 pinout, STF12N60M2 application, or STF12N60M2 equivalent, key selection criteria include avalanche ruggedness (117 mJ), COSS profile (29 pF), gate charge (16 nC), dv/dt capability (50 V/ns), and insulated case rating (2.5 kV RMS).

Technical Context

This MOSFET employs ST's MDmesh M2 strip layout and enhanced vertical structure to simultaneously reduce RDS(on) and output capacitance while maintaining high voltage blocking. Its Zener-protected gate and 100% avalanche-tested construction ensure robustness in hard-switching and inductive load conditions.

The device delivers low turn-off losses via minimized Qgd (8.5 nC) and optimized Crss (1.1 pF), enabling efficient operation at high frequencies up to 100 kHz in continuous conduction mode converters. Its 5 °C/W RthJC supports thermal management in compact heatsinked designs.

Key Specifications

Pinout & Package

TO-220FP (Type B) package: insulated plastic case with integral heatsink tab, 3-pin through-hole mounting, 5 °C/W junction-to-case thermal resistance, and 2.5 kV RMS isolation between leads and heatsink.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP12N60M2 and FDPF12N60NZ, STF12N60M2 uniquely combines certified 2.5 kV isolation, 117 mJ avalanche energy, and 395 mΩ RDS(on) in a single TO-220FP package-making it the only option qualified for safety-critical, high-reliability offline power conversion without design compromises.

Availability

STF12N60M2 is available at Aetrix Electronics and suitable for server power supplies, industrial PFC modules, motor drive inverters, and LED driver flyback converters requiring stable component supply and long-term lifecycle support.

Supply support for STF12N60M2 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.

STF12N60M2 belongs to the MDmesh M2 high-voltage Power MOSFET product line, engineered specifically for high-efficiency, high-reliability offline power conversion systems demanding low conduction and switching losses.

FAQ

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

The STF12N60M2 supports 5.7 A continuous drain current at TC = 100 °C, as specified in Table 1 of DS11073 Rev 2. This derating reflects thermal limits imposed by its 5 °C/W RthJC and 150 °C maximum junction temperature, ensuring safe operation in thermally constrained environments without forced airflow.

Does the TO-220FP package provide galvanic isolation between leads and heatsink?

Yes-the TO-220FP (Type B) package features molded plastic insulation that provides 2.5 kV RMS withstand voltage between all three leads and the external heatsink surface for 1 second at 25 °C, enabling direct mechanical mounting without insulating hardware or thermal pads.

How does the MDmesh M2 technology improve switching performance versus standard planar MOSFETs?

MDmesh M2 uses a fine-pitch strip layout and optimized vertical doping to reduce both RDS(on) and COSS simultaneously. This yields lower turn-off energy (Eoff), improved dv/dt immunity (50 V/ns), and reduced gate charge (16 nC), enabling higher frequency operation with lower losses than conventional 600 V planar devices.

Is the STF12N60M2 suitable for use in zero-voltage switching (ZVS) resonant converters?

Yes-its low COSS (29 pF), low Crss (1.1 pF), and tightly controlled Coss eq. (106 pF across 0–480 V) support predictable resonant tank behavior. The 16 nC Qg and Zener-protected gate also enhance ZVS reliability at high frequencies up to 300 kHz in LLC and phase-shifted full-bridge topologies.