The 1SMA4747-A Zener diode, manufactured by SMC Diodes, is a silicon-based voltage regulator designed to maintain a stable voltage output. With a power dissipation of 1W and a Zener voltage of 20V, this diode is suitable for a wide range of applications, including voltage stabilization, overvoltage protection, and clipping circuits. Its SMA (Surface Mount Assembly) package allows for efficient heat dissipation and easy integration into printed circuit boards. Supreme Components International is an authorised distributor of SMC Diodes, ensuring that you receive authentic and high-quality components. This Zener diode offers excellent surge protection capabilities and is built to withstand harsh operating conditions. It is a reliable choice for protecting sensitive electronic components from voltage spikes and fluctuations.