The SMBJ85CA is an electronic part from Yageo with a DO-214AA wide-body, bi-directional, transient voltage suppressor (TVS) diode package. It is RoHS compliant and has a power rating of 600W, a hold current of 1µA, a peak current of 4.4A, and a voltage range of 137V, 94.4V, 85V, and 104V. The SMBJ85CA is used to provide overvoltage and surge protection in systems that use sensitive electronic components, and can detect and suppress overvoltage spikes.