The BZX84C3V9-H Zener Diode, manufactured by FORMOSA MICROSEMI, is a crucial component for voltage regulation and protection in electronic circuits. With a Zener voltage of 3.9V and a power dissipation of 250mW, this diode provides a stable voltage reference and safeguards sensitive components from overvoltage conditions. Encased in a small SOD-323 package, it's suitable for high-density PCB designs. Supreme Components International is an authorised distributor of FORMOSA MICROSEMI components, ensuring you receive genuine and high-quality products. This Zener diode is commonly used in voltage stabilizers, surge protectors, and clipping circuits. Its compact size and reliable performance make it a versatile choice for a wide range of applications.