The CMKZ5258B Zener diode, manufactured by CENTRAL SEMICONDUCTOR, is a crucial component for voltage regulation and circuit protection. Supreme Components International is an authorised distributor of CENTRAL SEMICONDUCTOR components, ensuring you receive genuine and high-quality products. This diode features a Zener voltage of 3.9V and a power dissipation of 500mW, making it suitable for a wide range of applications. Encased in a compact SOD-523 package, the CMKZ5258B offers excellent performance in space-constrained designs. Its precise voltage regulation capabilities make it ideal for stabilizing power supplies, protecting sensitive circuits from overvoltage, and providing a stable reference voltage. Trust Supreme Components International for your electronic component needs.