STMicroelectronics STB11NM60N-1

Overview

STB11NM60N-1 from STMicroelectronics is an N-channel 600 V, 0.37 Ω (typ), 10 A MDmesh™ II Power MOSFET in I²PAK (TO-262) package, designed for high-efficiency switching converters. It delivers low gate charge (31 nC), low input capacitance (850 pF), and 100% avalanche tested ruggedness, enabling use in industrial SMPS, PFC stages, and offline flyback/LLC resonant converters.

For engineers reviewing the STB11NM60N-1 datasheet, STB11NM60N-1 pinout, STB11NM60N-1 application, or STB11NM60N-1 equivalent, key selection criteria include R_DS(on) at 10 V gate drive, safe operating area under 400 V inductive switching, thermal resistance (R_thj-case = 5 °C/W), and diode recovery performance (t_rr = 340 ns @ 150 °C).

Technical Context

This device implements ST's second-generation MDmesh™ vertical superjunction architecture with strip layout, achieving ultra-low conduction loss and gate charge simultaneously. Its 600 V V_DSS rating supports universal AC input designs, while the 150 °C max junction temperature enables high-power density operation without derating in constrained thermal environments.

The integrated source-drain diode exhibits fast reverse recovery (t_rr = 340 ns, Q_rr = 3.26 µC at 25 °C; 460 ns, 4.42 µC at 150 °C) and low forward voltage (V_SD = 1.3 V @ 10 A), reducing switching losses and EMI in hard-switched topologies. Gate threshold voltage (2–4 V) ensures robust noise immunity and predictable turn-on behavior across temperature.

Key Specifications

Pinout & Package

I²PAK (TO-262) package: 3-terminal through-hole outline with isolated mounting tab (drain-connected), optimized for manual soldering and medium-power thermal management. Tab is electrically connected to Drain (Pin 2).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP11NM60N, STB11NM60N-1 trades 1.38 °C/W thermal resistance for electrical isolation and smaller footprint; compared with FDPF12N50FT, it provides 100 V higher blocking voltage and 19% lower gate charge-critical for universal-input PFC and high-reliability industrial systems.

Availability

STB11NM60N-1 is available at Aetrix Electronics and suitable for industrial SMPS, server PSU PFC stages, and offline flyback converters requiring stable component supply, long-lifecycle support, and traceable sourcing.

Supply support for STB11NM60N-1 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 industrial, automotive, and consumer markets.

This device belongs to ST's MDmesh™ II Power MOSFET product line, engineered specifically for high-efficiency, high-voltage switching power conversion-targeting >94% efficiency in 100–500 W AC-DC and DC-DC topologies.

FAQ

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

The STB11NM60N-1 supports 6.3 A continuous drain current at T_C = 100 °C, as specified in Table 2 of the datasheet. This derating reflects thermal limits of the I²PAK package and ensures reliable operation within the 150 °C maximum junction temperature, even under sustained high ambient conditions.

Does the body diode require external snubbing in hard-switched bridge applications?

No external snubber is required for typical hard-switched operation due to the device's 100% avalanche-rated design and fast, soft reverse recovery (t_rr = 340 ns, Q_rr = 3.26 µC). However, in high-di/dt (>200 A/µs) or high-V_DD (>400 V) conditions, a small RC snubber across drain-source may further reduce voltage overshoot.

Can STB11NM60N-1 be used in place of STP11NM60N in existing TO-220 layouts?

No-it uses the I²PAK (TO-262) package with different pin spacing (e.g., 2.54 mm between pins 1–2 vs. 2.54 mm in TO-220 but different tab location), incompatible land pattern, and isolated drain tab. Direct replacement requires PCB redesign and thermal validation due to higher R_thj-case (5 °C/W vs. 1.38 °C/W).

What is the recommended gate resistor value for 200 kHz LLC operation?

A 4.7 Ω non-inductive gate resistor is validated per Figure 18 in the datasheet for 300 V, 5 A switching. For 200 kHz LLC with ZVS, reduce to 2.2–3.3 Ω to accelerate turn-on while maintaining <10 V/ns dv/dt during turn-off-verified via oscilloscope measurement of gate waveform ringing and V_DS overshoot.