BUY SMBJ51CA https://www.utsource.net/itm/p/11206599.html
TVS Diode
Description: The SMBJ51CA is a 5.1V unidirectional TVS diode designed to protect voltage sensitive components from high voltage, high energy transients. Features: * Low profile surface mount package * Low clamping voltage * Low leakage current * RoHS compliant Applications: * Automotive electronics * Industrial electronics * Telecommunications * Computer peripherals * Portable electronics (For reference only)