STW40N95K5 - STMicroelectronics

The STW40N95K5 is a high-performance N-channel 950V MDmesh™ K5 Power MOSFET, designed and manufactured by STMicroelectronics, a global semiconductor leader. This advanced power MOSFET is part of ST's MDmesh™ K5 series which is renowned for its exceptional efficiency, especially in hard-switching applications. It is particularly suitable for high voltage applications such as power supplies, lighting, welding, solar inverters, and other energy-efficient solutions.

Key Features

• High Voltage Rating: With a drain-source voltage (V<sub>DS) of 950V, the STW40N95K5 is capable of handling high voltage applications, making it an ideal choice for power conversion systems.
• Low On-Resistance: The device features an extremely low on-resistance (R<sub>DS(on)) which translates to reduced conduction losses, enhancing overall system efficiency.
• Low Gate Charge: Its low gate charge (Q<sub>g) minimizes switching losses, which is critical for high-frequency operations.
• Zener-Protected: The MOSFET comes with a built-in Zener diode for gate-source protection, providing increased reliability and robustness against voltage transients.

Applications

The STW40N95K5 is engineered for a variety of applications, including:

• Switch Mode Power Supplies (SMPS)
• LED Lighting Solutions
• Welding Equipment
• Solar Inverters
• Uninterruptible Power Supplies (UPS)
• High-Efficiency Power Converters

Technical Specifications

Below are some of the technical specifications of the STW40N95K5:

• Drain-source Voltage (V<sub>DS): 950V
• Continuous Drain Current (I<sub>D): 33A
• On-Resistance Max (R<sub>DS(on)): 0.165Ω
• Gate Charge (Q<sub>g): 100nC
• Package: TO-247 long leads

With its robust design and advanced technology, the STW40N95K5 from STMicroelectronics sets the standard for high-efficiency, high-voltage power MOSFETs, offering reliability and performance for a wide array of power applications.