The SM4F18CA-MS-H is a robust Transient Voltage Suppressor (TVS) Diode manufactured by FORMOSA MICROSEMI. This diode is specifically designed to protect sensitive electronic circuits from voltage transients induced by lightning, electrostatic discharge (ESD), and inductive load switching. With a power dissipation of 400W and a standoff voltage of 18V, the SM4F18CA-MS-H effectively clamps transient voltages to safe levels, preventing damage to downstream components. Its DO-214AA (SMB) package allows for easy surface mounting on printed circuit boards. As an authorized distributor of FORMOSA MICROSEMI, Supreme Components International guarantees the authenticity and reliability of this TVS diode. This component is suitable for a wide range of applications, including automotive, industrial, and consumer electronics.