The SMBJ40CA/TR13 is a Surface Mount Bi-Directional Device with ESD Suppressors / TVS Diodes manufactured by Yageo. It is a 40V, 64.5V device in the SMBJ DO-214AA package, designed to provide protection against ESD, voltage transients, and electrostatic discharge. The low capacitance of the device allows it to protect high-speed data cables, and it has an uncomplicated single-part solution. The device also has a low transient clamping voltage, which enables it to protect high-speed transistors, ICs, and other sensitive components. The SMBJ40CA/TR13 is an ideal choice for protecting ESD, voltage transients, and electrostatic discharge in a wide variety of applications.