The SMBJ400A is a Transient Voltage Suppressor (TVS) Diode manufactured by SMC DIODES. 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 power dissipation rating of 400W and a breakdown voltage of 400V, the SMBJ400A effectively clamps transient voltages to safe levels, preventing damage to downstream components. Its SMB (DO-214AA) package allows for easy surface mounting on printed circuit boards. Supreme Components International is an authorised distributor of SMC DIODES, ensuring you receive authentic and high-quality components. This TVS diode is suitable for a wide range of applications, including industrial control systems, automotive electronics, and telecommunications equipment.