The ZMM4.3 Zener Diode, manufactured by Diptronics, is a silicon planar Zener diode in a SOD-80 package. It's designed to provide a stable 4.3V reference voltage with a power dissipation of 500mW. This diode is commonly used for voltage regulation, overvoltage protection, and clipping applications in electronic circuits. Its small size makes it suitable for high-density PCB designs. As an authorized distributor of Diptronics components, Supreme Components International guarantees the authenticity and quality of the ZMM4.3. This Zener diode is a reliable choice for applications requiring precise voltage control and protection against voltage spikes. Consider this diode for your next project requiring a stable voltage reference.