The SMBJ43A with TVS SMB (DO-214AA) RoHS is an electronic component manufactured by Ruilongyuan. This component provides transient voltage protection for sensitive components in electronic circuits. It features low clamping voltage, fast response time, low capacitance, low operating and storage temperature ranges, and it is compliant with RoHS directives. This component is rated to protect power supply lines, communication lines, and signal lines from damage caused by transient voltage disturbances. It is ideal for protecting against overvoltage, over-current, and ESD events. With its low capacitance, it is suitable for applications where interference is an issue.