The UDZ3.9B-FL-Q1-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 200mW, this diode provides a stable voltage reference. Its SOD-523 package allows for easy integration into densely populated PCBs. Supreme Components International is an authorised distributor of Formosa Microsemi components, ensuring you receive genuine and reliable products. This Zener diode is suitable for applications such as overvoltage protection, voltage clamping, and voltage stabilization. Its compact size and robust performance make it a versatile choice for various electronic designs. Benefit from the quality and reliability of Formosa Microsemi components through Supreme Components International.