STMicroelectronics STF11N60DM2

Overview

STF11N60DM2 from STMicroelectronics is a 600 V, 10 A N-channel MDmesh DM2 Power MOSFET in TO-220FP package with 370 mΩ typ. R_DS(on), 16.5 nC total gate charge, and fast-recovery body diode (t_rr = 90 ns @ T_j = 25 °C). It delivers high dv/dt ruggedness (50 V/ns), Zener-protected gate, and 100% avalanche tested performance for hard-switched bridge and ZVS phase-shift converters.

For engineers reviewing the STF11N60DM2 datasheet, STF11N60DM2 pinout, STF11N60DM2 application, or STF11N60DM2 equivalent, key selection criteria include its low Q_rr (248 nC), ultra-low C_iss (614 pF), junction-to-case thermal resistance (5 °C/W), and built-in gate-source Zener clamping (±30 V).

Technical Context

This device belongs to ST's MDmesh DM2 series optimized for high-frequency, high-efficiency SMPS topologies. Its fast-recovery body diode enables reduced switching losses in synchronous rectification and resonant converters, while low Q_g and Q_gd support clean turn-on/turn-off with minimal Miller-induced oscillation.

The TO-220FP package provides insulated mounting (2.5 kV RMS isolation) and low thermal resistance, enabling stable operation at T_case = 100 °C with 6.3 A continuous current. The Zener-protected gate structure eliminates need for external gate protection in noisy industrial environments.

Key Specifications

Pinout & Package

TO-220FP package with insulated tab (2.5 kV RMS isolation), single-screw mounting, and vertical lead orientation. Pin 1 = Gate, Pin 2 = Drain (tab-connected), Pin 3 = Source.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP12N60DM2 and FDPF12N60NZ, STF11N60DM2 offers optimal balance of gate robustness, low Q_rr, and thermal performance for space-constrained industrial converters requiring guaranteed avalanche immunity and simplified layout.

Availability

STF11N60DM2 is available at Aetrix Electronics and suitable for industrial motor drives, telecom rectifier modules, server PSU LLC resonant converters, and EV onboard charger PFC stages requiring stable component supply and long-term lifecycle assurance.

Supply support for STF11N60DM2 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 silicon solutions for automotive, industrial, power, and digital consumer markets.

This device belongs to the MDmesh DM2 Power MOSFET product line, engineered specifically for high-efficiency, high-frequency switched-mode power supplies and resonant converters demanding low Q_rr, high dv/dt immunity, and rugged avalanche performance.

FAQ

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

The STF11N60DM2 supports 6.3 A continuous drain current at T_case = 100 °C, as specified in Table 1 of DS11673 Rev 2. This derating reflects thermal limits of the TO-220FP package with R_thj-case = 5 °C/W and T_jmax = 150 °C. Operation above this current requires active cooling or pulse-width limitation.

Does the built-in Zener protect against both positive and negative gate overvoltage?

Yes - the integrated back-to-back Zener diodes provide symmetrical ±30 V clamping between gate and source (V_(BR)GSO), as confirmed in Table 8 of the datasheet. This dual-polarity protection eliminates external components in bidirectional gate drive circuits such as H-bridge motor controls.

Can STF11N60DM2 replace STF10N60DM2 in existing designs?

Yes - STF11N60DM2 is a direct upgrade with identical TO-220FP pinout, same 600 V rating, and improved R_DS(on) (370 mΩ vs. 450 mΩ typ.) and Q_g (16.5 nC vs. 18.5 nC). No layout or drive circuit changes are needed; efficiency improves by ~0.4% in 1 kW PFC stages.

Is the 2.5 kV insulation rating suitable for reinforced isolation in medical-grade power supplies?

No - the 2.5 kV RMS rating applies to isolation between all three leads and an external heatsink (per Table 1 note 4), not creepage/clearance compliance for medical safety standards (IEC 60601-1). For reinforced isolation, additional system-level certification and spacing verification are required beyond the device's intrinsic rating.