SMAJ180CA with ESD Suppressors / TVS Diodes 400W 180V 5% Bi-Directional is a bi-directional, surface mount, transient voltage suppressor (TVS diode) from Littelfuse. It is rated for 400W, 180V and has a 5% tolerance. It is made to protect sensitive electronics from electrostatic discharge (ESD) and is designed to absorb high-level, fast transients, such as those following a direct lightning strike, reducing the risk of component failure. This component is a two-terminal component and is RoHS and REACH compliant.