The SM4F40CA-MS-H is a Surface Mount Transient Voltage Suppressor (TVS) Diode manufactured by FORMOSA MICROSEMI. Supreme Components International is an authorised distributor of FORMOSA MICROSEMI components, ensuring you receive genuine and reliable parts. This TVS diode is designed to protect sensitive electronic equipment from voltage transients. It features a standoff voltage of 40V and a peak pulse power dissipation of 400W. The SM4F40CA-MS-H is ideal for applications requiring robust overvoltage protection, such as automotive, industrial, and telecommunications equipment. Its surface mount package allows for easy integration into printed circuit boards, saving space and reducing assembly costs. This diode offers excellent clamping capability, high surge capability, and fast response time, making it a reliable choice for safeguarding your circuits.