The BSD5C051U with 15.5V 6V 5V SOD-523 TVS ROHS manufactured by Bourne is a Transient Voltage Suppressor (TVS). It is capable of protecting sensitive electronic components from electrical overstress caused by voltage spikes. This component is RoHS-compliant and has a small body package size of SOD-523. It has a breakdown voltage of 15.5V for the 5V rail, 6V for the 6V rail, and 5V for the 5V rail. In addition, it has a maximum clamping voltage of 24V (typ.). It is typically used to provide protection in systems such as automotive, industrial, computer, communication, and consumer electronics applications.