BUY 1N4734A-5.6V https://www.utsource.net/itm/p/760100.html
One Watt Zeners
1N4734A-5.6V is a 5.6V, 1W Zener diode in a DO-41 package. It is a general purpose diode used for voltage regulation, clipping, and clamping applications. It is also used for voltage reference and as a shunt regulator. It has a low leakage current and a high temperature coefficient. It is suitable for use in automotive, industrial, and consumer applications. (For reference only)