The SMBJ54A with SMB (DO-214AA) TVS ROHS device, manufactured by Paker Microelectronics, is a Bi-Directional Transient Voltage Suppressor. It is designed to protect sensitive electronic components from high electrical transients induced by lightning and other transient voltage events. This device has a flame retardant epoxy molded radiation hard plastic case, and is available in a variety of reverse stand-off voltage options: 40V, 50V, 60V, and 70V. The SMBJ54A is RoHS compliant and can absorb up to 600W of transient power. The device has a fast response time, excellent clamping capability, and low leakage current. It is designed for low component stress during normal operation.