Zener Diode identification help

[euvasile]

hi!
help
Zener Diode identification (color bands) red- yellow- blue

 

[Kabelsalat]

If you're sure that it really is a zener, you can always get a DC voltage source at, say 20 volts and a 10k resistor connected in series. Measure the voltage over the device and see what voltage it sets to. That would give you an idea of it's voltage rating.