The SMBJ440A-H is a high-performance Transient Voltage Suppressor (TVS) diode from Formosa Microsemi, designed to protect sensitive electronic equipment from voltage transients induced by lightning, electrostatic discharge (ESD), and inductive load switching. This surface-mount device features a compact SMB package, making it ideal for applications where space is limited. With a power dissipation of 400W and a standoff voltage of 440V, the SMBJ440A-H provides reliable overvoltage protection. Supreme Components International is an authorised distributor of Formosa Microsemi components, ensuring that you receive genuine, high-quality products. This TVS diode is commonly used in telecommunications equipment, industrial controls, and consumer electronics to enhance system reliability and prevent costly damage from voltage surges. Its fast response time and low clamping voltage make it an excellent choice for safeguarding sensitive circuitry.