The SM4F43A-MS-H is a high-performance Transient Voltage Suppressor (TVS) diode manufactured by Formosa Microsemi. Supreme Components International is an authorised distributor of Formosa Microsemi components. This surface-mount TVS diode is designed to protect sensitive electronic equipment from voltage transients caused by electrostatic discharge (ESD), lightning, and inductive load switching. With a reverse standoff voltage of 43V and a peak pulse power dissipation of 400W, the SM4F43A-MS-H offers robust protection against transient events. Its fast response time and low clamping voltage ensure effective protection for a wide range of applications, including telecommunications, industrial equipment, and consumer electronics. This diode meets industry standards for reliability and performance, making it a dependable choice for circuit protection.