SMBJ28CA with SMB TVS ROHS is an electronic part manufactured by Shikues. It is a bidirectional transient voltage suppression (TVS) diode in a SMB package. The SMB package allows for a small footprint and a low profile. The diode is designed to provide transient protection for sensitive electronics from electrostatic discharge (ESD) and other voltage transients. It has a maximum clamping voltage of 28V and a stand-off voltage of 18V. The SMBJ28CA with SMB TVS ROHS is RoHS (Restriction of Hazardous Substances) compliant, meaning it is free of lead, cadmium, mercury, and other hazardous substances.