The SMBJ40A is a Transient Voltage Suppressor (TVS) diode manufactured by JSCJ (JCET). Supreme Components International is an authorised distributor of JSCJ components, ensuring you receive genuine and high-quality products. This diode is specifically designed to protect sensitive electronic circuits from voltage transients induced by lightning, electrostatic discharge (ESD), and inductive load switching. With a reverse standoff voltage of 40V and a breakdown voltage of 64.5V, the SMBJ40A effectively clamps overvoltage events, preventing damage to downstream components. Its SMB package allows for efficient heat dissipation and easy integration into circuit boards. This TVS diode is suitable for a wide range of applications, including automotive, industrial, and consumer electronics, where reliable overvoltage protection is crucial.