The SMBJ40A-A is a Transient Voltage Suppressor (TVS) Diode manufactured by SMC Diodes. Supreme Components International is an authorised distributor, guaranteeing authentic components. This diode is specifically designed to protect sensitive electronic circuits from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). Featuring a reverse standoff voltage of 40V and a breakdown voltage of 64.5V, the SMBJ40A-A offers excellent clamping capabilities, diverting excess voltage away from protected circuits. Its SMB package allows for efficient heat dissipation and easy board mounting. Applications include power supplies, telecommunications equipment, industrial controls, and consumer electronics. Choose the SMBJ40A-A for reliable overvoltage protection in your designs.