STMicroelectronics

STW15NK50Z

STW15NK50Z Description

The STW15NK50Z from STMicroelectronics is an N-channel 500V MOSFET belonging to the SuperMESH™ series, designed for high-voltage switching applications. With a continuous drain current (Id) of 14A (Tc) and low on-resistance (Rds(on)) of 340mΩ @ 7A, 10V, it offers efficient power handling and reduced conduction losses. The device features a robust 500V drain-to-source voltage (Vdss), making it suitable for demanding environments. Packaged in a TO-247-3 through-hole format, it ensures reliable thermal performance with a maximum power dissipation of 160W (Tc).

STW15NK50Z Features

• High Voltage & Current Rating: 500V Vdss and 14A Id for power applications.
• Low Rds(on): 340mΩ @ 10V gate drive, minimizing power loss.
• Fast Switching: Optimized gate charge (Qg: 106nC @ 10V) and input capacitance (Ciss: 2260pF @ 25V) for efficient high-frequency operation.
• Wide Gate-Source Voltage Range: ±30V Vgs(max) for flexible drive compatibility.
• SuperMESH™ Technology: Enhances ruggedness and avalanche energy tolerance.
• Reliability: ROHS3 compliant, REACH unaffected, and MSL 1 (unlimited) for long-term stability.

STW15NK50Z Applications

• Switched-Mode Power Supplies (SMPS): High-efficiency AC-DC converters.
• Motor Drives & Inverters: Robust performance in industrial motor control.
• Lighting Systems: Ballasts and LED drivers requiring high-voltage switching.
• Renewable Energy: Solar inverters and power conditioning units.
• Industrial Automation: High-power switching in control circuits.

Conclusion of STW15NK50Z

The STW15NK50Z is a high-performance 500V MOSFET optimized for efficiency, thermal management, and reliability in power electronics. Its SuperMESH™ technology and low conduction losses make it ideal for SMPS, motor drives, and renewable energy systems. While marked as "Not For New Designs", it remains a dependable choice for legacy or cost-sensitive applications requiring high-voltage switching with robust performance.