STPS340SY

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The STPS340SY is the single rectifier version of the STPS340SY & STPS340SY-L30 series of surface-mount Schottky power rectifiers from STMicroelectronics. These devices are intended for use in applications that require positive-voltage loads and rectified-current sources. They are designed to be mounted on the bottom of boards or on the backside of thinner printed circuit boards, making them suitable for applications with limited physical space or where a small switch footprint is desired.The STPS340SY is a Schottky power rectifier featuring low forward voltage drop and no reverse leakage current. It has an on-state resistance of 0.17 Ω at 10 A with a 20 Mbps switching speed. The device is available in a through-hole package with a leadless flat bottom surface mount.The STPS340SY has a maximum repetitive peak reverse voltage (V RRM ) of 40 V and a maximum continuous forward current (If) of 10 A. The device is UL-recognized and CSA-certified. It has excellent surge capability and low thermal resistance for quick heat dissipation. Its Schottky barrier construction ensures its fast switching capability, superior temperature stability and improved response to rapidly changing operating conditions.The STPS340SY\'s application field includes dc-to-dc converters, switch-mode power supplies, power factor correction, Uninterruptible Power Supplies (UPS) and other high-efficiency circuits where low voltage drops and low reverse leakage current is desired. It can also be used in applications with limited environmental or physical space.The working principle of the STPS340SY is based on a process called the Schottky Effect. In this process, electrons flow across the junction between a negatively charged barrier layer and a positively charged semiconductor layer. This creates a current that only flows in one direction from the negative to the positive, resulting in rectified current. The STPS340SY also has a built-in resistive element, which reduces the amount of current that flows when a voltage is applied. This ensures protection for connected applications when by providing a constant current flow no matter the load.Overall, the STPS340SY is an ideal surface mount power rectifier for applications that require a fast switching and low voltage power rectifier. Its small size, surface mount design, and resistance to temperature, reverse currents and surge make it an efficient and economic choice.

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