The 1SMA4748A Zener diode, manufactured by JSCJ (JCET), is a robust component designed for voltage regulation and transient voltage suppression. With a power dissipation of 1W and a Zener voltage of 18V, this diode provides reliable performance in a wide range of applications. Its DO-214AC (SMA) package allows for efficient surface mounting. Supreme Components International is an authorized distributor of JSCJ (JCET) components, ensuring that you receive genuine, high-quality products. This Zener diode is suitable for use in power supplies, telecommunications equipment, and other electronic devices requiring precise voltage control. Benefit from our commitment to quality and authenticity.