STMicroelectronics

STL21N65M5

STL21N65M5 Description

The STL21N65M5 from STMicroelectronics is a high-performance N-channel MOSFET designed for demanding power applications. With a 650V drain-to-source voltage (Vdss) and 17A continuous drain current (Id), it delivers robust switching performance in compact designs. The device leverages MDmesh™ V technology, optimizing efficiency with low on-resistance (Rds(on) of 179mΩ @ 10V) and reduced gate charge (Qg(max) = 50nC @ 10V), ensuring minimal conduction and switching losses. Packaged in a PowerFlat™ (8x8) HV surface-mount form factor, it offers superior thermal management and space savings for high-density PCB layouts.

STL21N65M5 Features

• High Voltage & Current Rating: 650V Vdss and 17A Id (Tc) for robust power handling.
• Low Rds(on): 179mΩ @ 10V, enhancing efficiency in high-current applications.
• Fast Switching: Low gate charge (50nC) and input capacitance (1950pF @ 100V) for reduced switching losses.
• Advanced Packaging: PowerFlat™ HV ensures superior thermal dissipation (125W max @ Tc) and compact footprint.
• Wide Operating Temperature: Rated for 150°C junction temperature (TJ), suitable for harsh environments.
• Reliability: ROHS3 compliant, REACH unaffected, and MSL3 rated for extended shelf life.

STL21N65M5 Applications

• Switched-Mode Power Supplies (SMPS): High-efficiency PFC, LLC, and flyback converters.
• Industrial Power Systems: Motor drives, inverters, and welding equipment.
• Renewable Energy: Solar inverters and battery management systems.
• Automotive & EV Charging: Auxiliary power modules and DC-DC converters.
• Consumer Electronics: High-power adapters and LED drivers.

Conclusion of STL21N65M5

The STL21N65M5 stands out as a high-reliability MOSFET for 650V power switching, combining low Rds(on), fast switching, and excellent thermal performance in a compact package. Its MDmesh™ V technology and PowerFlat™ HV design make it ideal for high-efficiency applications in industrial, automotive, and renewable energy systems. Engineers benefit from its balance of performance, size, and ruggedness, ensuring long-term durability in demanding environments.