1.5SMCJ6.5CA is a part manufactured by Diotec. It is an SMA (Surface Mounted Automotive) diode with a voltage rating of 6.5 volts. This diode is designed for use in automotive applications, such as reverse polarity protection, switching and rectification, overvoltage protection, and DC power line protection. It has high surge capability, a low forward voltage drop, and is highly reliable.