STMicroelectronics STP11N65M2

Overview

STP11N65M2 from STMicroelectronics is an N-channel 650 V, 0.68 Ω (max) MDmesh™ M2 Power MOSFET in TO-220 package, rated for 7 A continuous drain current and 85 W power dissipation at T_case = 25 °C. It features 12.5 nC total gate charge, 20 pF typical output capacitance, and 100% avalanche tested ruggedness - optimized for high-efficiency AC-DC flyback and PFC converters.

For engineers reviewing the STP11N65M2 datasheet, STP11N65M2 pinout, STP11N65M2 application, or STP11N65M2 equivalent, key selection criteria include its 50 V/ns MOSFET dv/dt ruggedness, 1.47 °C/W junction-to-case thermal resistance, Zener-protected gate, and low 0.60 Ω typical R_DS(on) enabling reduced conduction loss in high-voltage switching topologies.

Technical Context

This device employs ST's MDmesh™ M2 strip layout and enhanced vertical structure to simultaneously minimize R_DS(on) and optimize switching performance. Its 410 pF input capacitance and 0.9 pF reverse transfer capacitance support fast, controlled turn-on/turn-off with minimal Miller effect.

The integrated source-drain diode exhibits 1.6 V forward voltage at 7 A and 318 ns reverse recovery time at 25 °C, enabling reliable operation in hard-switched inductive loads. Avalanche energy rating of 110 mJ (single-pulse) and 1.5 A repetitive avalanche current confirm robust unclamped inductive switching capability.

Key Specifications

Pinout & Package

STP11N65M2 uses a TO-220 package with standard three-terminal configuration: Drain (tab), Gate (pin 1), Source (pin 2). The metal tab is electrically connected to the Drain and must be isolated from heatsink unless circuit topology permits common-Drain mounting.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IPP65R099C7, STP11N65M2 offers superior high-frequency efficiency due to lower Q_g and C_oss, while STP12N65M2 provides incremental current and R_DS(on) improvement without altering gate drive or thermal design.

Availability

STP11N65M2 is available at Aetrix Electronics and suitable for AC-DC adapters, industrial SMPS, and LED drivers requiring stable component supply across production lifecycles.

Supply support for STP11N65M2 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 analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

STP11N65M2 belongs to the MDmesh™ M2 high-voltage power MOSFET product line, engineered specifically for high-efficiency, high-reliability offline power conversion in compact form factors.

FAQ

What is the maximum recommended gate-source voltage for STP11N65M2?

The absolute maximum V_GS is ±25 V, and the device integrates a Zener diode between gate and source to clamp transients. For reliable long-term operation, gate drive should be limited to 0–15 V for turn-on and –5 V for active turn-off; exceeding 18 V risks accelerated gate oxide degradation even with Zener protection.

Can STP11N65M2 replace STP10NK60Z in an existing design?

No - STP10NK60Z is a 600 V, 0.72 Ω device using older SuperMESH™ technology with higher Q_g (35 nC) and no Zener gate protection. While pin-compatible, STP11N65M2's lower R_DS(on), reduced Q_g, and improved dv/dt ruggedness require gate drive tuning and may alter snubber requirements due to faster switching edges.

Is the TO-220 tab electrically isolated in STP11N65M2?

No - the metal tab is internally connected to the Drain terminal. Electrical isolation from the heatsink is mandatory unless the heatsink is at Drain potential. Use of insulating shoulder washers and ceramic pads is required for grounded or floating heatsink configurations to prevent short circuits.

What is the safe operating area (SOA) limitation at 100 °C case temperature?

At T_case = 100 °C, the continuous drain current is derated to 4.4 A per Absolute Maximum Ratings Table 1. The SOA curve (Figure 3) shows that operation above 10 A is limited to pulse widths <100 μs at V_DS = 400 V - sustained linear-mode operation is not supported beyond R_DS(on)-limited conduction.