The 5.0SMDJ120A is an Electronic Part manufactured by Yageo. It is a Transient Voltage Suppressor (TVS) device in a Surface Mounted Chip (SMC) configuration with a DO-214AB form factor that is RoHS compliant. This device is designed to protect against voltage transients that may occur due to ESD, lightning strikes, power surges, and other electrical events. It has an maximum peak pulse power of 1200W and a breakdown voltage of 5.0V.