STL42N65M5

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The STL42N65M5 is a Power MOSFET manufactured by STMicroelectronics, which combines very low on-resistance and fast switching for applications in the consumer electronics, lighting, and industrial markets. This FET is designed to have low power dissipation and low gate charge, making it well-suited for use in high-current switching circuits. This FET is a n-channel enhancement mode device and is available in an industry-standard TO-252 (SOT-223) package.

Application Fields

STL42N65M5 is well-suited for use in high-current switching applications, such as motor control, automotive, and high-current safety circuits. It is also suitable for use in AC/DC converters, DC/DC converters, and general power circuits. The TO-252 package makes it easy to mount and makes it suitable for through-hole and surface-mount designs.

Working Principle

The STL42N65M5 is an n-channel enhancement mode power MOSFET. This means that it is normally off and has an enhancement (or enhancement-mode) gate that increases the amount of current that can flow from drain to source. In the off state, the gate (or voltage threshold) is a diode drop below the source voltage, which prevents current from flowing. When the gate voltage is higher than the source voltage, the drain-to-source channel is “enhanced” and current flows.

The STL42N65M5 can handle drain currents of up to 42A and is designed to have a low on-resistance, making it very efficient in power switching applications. Its fast switching time and low gate charge make it well-suited for use in switching applications where low power dissipation and high current handling are required. The FET also has built-in ESD protection and a low internal drain-to-source capacitance, which make it well-suited for use in high-speed switching circuits.

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