The RLZ4.3 (C) Zener diode, manufactured by Formosa Microsemi, is a crucial component for voltage regulation and circuit protection. As an authorized distributor, Supreme Components International provides this diode, ensuring authenticity and quality. This 4.3V, 500mW Zener diode is housed in a space-saving SOD-323 package, making it suitable for densely populated circuit boards. Its primary function is to maintain a stable voltage level, protecting sensitive components from voltage spikes and fluctuations. It finds applications in power supplies, voltage references, and overvoltage protection circuits. Supreme Components International is a trusted source for electronic components, offering a wide range of products and reliable service.