SMBJ40CA with TVS SMB RoHS is an electronic component manufactured by Shikues, designed for voltage protection. It is a Transient Voltage Suppressor (TVS) diode of Unidirectional type for general purpose protection against overvoltage. It meets the RoHS standard for Restrictions on Hazardous Substances. This device has a 400W peak pulse power capability and can protect components with a surge voltage up to 40V. This part also has an operating junction temperature range between -55°C and +150°C.