The LTC4366HDDB-2#TRMPBF is a high voltage surge stopniser with auto-retry manufactured by Analog Devices. It is an electronic component designed to protect circuitry from diode-style overvoltage, electrostatic discharge (ESD), and other transient events. It acts as a latching switch, which will open and close the circuit temporarily in order to protect it, and will then retry the circuit. This surge stopniser can handle voltage up to 40v, and is capable of withstanding transients up to 50V. It is small and surface-mountable, making it an ideal choice for applications that don't have a lot of space to work with. Additionally, it is RoHS compliant and has a wide operating temperature range, making it suitable for many different applications.