The BZT55B4V3A-Q1-H Zener diode, manufactured by Formosa Microsemi, is a crucial component for voltage regulation and circuit protection. With a Zener voltage of 4.3V and a power dissipation of 500mW, this diode effectively stabilizes voltage levels in electronic devices. Packaged in a compact SOD-80, it's suitable for high-density PCB layouts. Supreme Components International is an authorized distributor of Formosa Microsemi components, ensuring you receive genuine and high-quality products. This Zener diode is commonly used in applications such as voltage clamping, overvoltage protection, and reference voltage generation. Its robust design and precise voltage characteristics make it a reliable choice for demanding electronic circuits. Trust Supreme Components International for all your component needs.