The 1N4733A.113 is a Zener diode manufactured by Nexperia. It is a 1 Watt 5.1V Zener diode, packaged in a reel, tape and DO41 format and with a reverse current (Ir) rating of 10uA. It is suitable for stabilizing and controlling voltages in electronic circuits and for generating reference voltages for electronic components, such as transistors, capacitors, and resistors. It can be used in voltage regulation, power supplies, and power switching applications. It is also suitable for over-voltage and over-current protection and for electrical noise suppression.