STMicroelectronics STF11N60M2-EP

Overview

STF11N60M2-EP from STMicroelectronics is an N-channel 600 V, 7.5 A Power MOSFET in TO-220FP package, featuring 0.595 Ω max R_DS(on), 12.4 nC total gate charge, and 22 pF typical C_OSS. It employs MDmesh™ M2 EP technology for ultra-low turn-off switching losses and is 100% avalanche tested with integrated Zener gate protection - optimized for high-frequency SMPS, PFC stages, and industrial flyback converters.

For engineers reviewing the STF11N60M2-EP datasheet, STF11N60M2-EP pinout, STF11N60M2-EP application, or STF11N60M2-EP equivalent, key selection criteria include its 50 V/ns MOSFET dv/dt ruggedness, 2.4 A repetitive avalanche current rating, 115 mJ single-pulse avalanche energy, and 5 °C/W junction-to-case thermal resistance for thermally constrained board layouts.

Technical Context

This device uses ST's MDmesh™ M2 Enhanced Performance strip layout and refined vertical structure to simultaneously reduce R_DS(on) and output capacitance while maintaining high voltage blocking (600 V V_(BR)DSS). Its low C_oss (22 pF typ.) and C_oss,eq (49 pF) enable efficient hard-switching above 100 kHz.

The MOSFET integrates a robust body diode with 192 ns reverse recovery time (T_j = 25 °C) and 1.32 µC Q_rr, supported by Zener-protected gate (±25 V V_GS) and 15 V/ns diode recovery dv/dt capability - critical for reliable operation in discontinuous conduction mode (DCM) PFC and resonant LLC topologies.

Key Specifications

Pinout & Package

Supplied in TO-220FP (Full-Pak) package: insulated plastic case with internal heat sink tab, enabling direct mounting to PCB without external insulator. Pin 1 = Gate (G), Pin 2 = Drain (D), Pin 3 = Source (S).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP12N60M2 and IPP60R099C7, STF11N60M2-EP uniquely balances low switching loss (E_off = 9 µJ), certified isolation (2.5 kV RMS), and high avalanche energy (115 mJ), making it optimal for space-constrained, safety-critical industrial power stages where reliability trumps marginal conduction gain.

Availability

STF11N60M2-EP is available at Aetrix Electronics and suitable for industrial switched-mode power supplies, active PFC front-end stages, and resonant LLC converters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STF11N60M2-EP 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 ST's MDmesh™ M2 EP high-voltage Power MOSFET product line, engineered specifically for high-frequency, high-efficiency power conversion in industrial SMPS, PFC, and resonant topologies where low switching loss and avalanche ruggedness are mandatory.

FAQ

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

The STF11N60M2-EP supports 4.7 A continuous drain current at T_C = 100 °C, as specified in Table 1 of DS11598 Rev 4. This derating reflects thermal limits of the TO-220FP package and must be applied in convection-cooled or sealed enclosure designs where case temperature exceeds 25 °C.

Does this MOSFET require external gate protection?

No external gate protection is required. The device integrates a Zener diode between gate and source, clamping transient voltages to ±25 V (absolute maximum rating). This eliminates the need for discrete TVS diodes in most industrial motor drive and SMPS gate drive circuits.

How does the TO-220FP package differ from standard TO-220 in thermal and isolation performance?

TO-220FP features an insulated plastic case with 2.5 kV RMS insulation withstand voltage between all three leads and the external heat sink. Its R_thj-case is 5 °C/W - slightly higher than TO-220 (4.5 °C/W) due to added insulation - but enables direct mounting without mica washers or silicone pads, simplifying assembly and improving long-term thermal reliability.

What is the recommended gate resistor value for 100 kHz hard-switching operation?

A 4.7 Ω gate resistor is validated in the datasheet (Table 6, E_off test conditions) for 100 kHz operation with V_GS = 10 V drive. This value balances switching speed (t_d(off) = 26 ns, t_f = 8 ns) and gate ringing suppression; lower values risk overshoot, higher values increase E_off disproportionately.