The ZJ3.9B is a high-quality 3.9V Zener Diode from FORMOSA MICROSEMI, designed for a wide range of applications including voltage regulation, overvoltage protection, and voltage reference. This diode offers excellent performance and reliability. Supreme Components International is an authorised distributor of FORMOSA MICROSEMI components, ensuring you receive genuine products with full traceability. This Zener diode is commonly used in power supplies, communication equipment, and consumer electronics. Its robust design ensures stable operation even under demanding conditions. Choose the ZJ3.9B for your next project and experience the difference in quality and performance.