hi,
the datasheet is a paper copy that came in the bag, and I have no scanner to show it to you, but to be honest that was the only thing i didnt understand.
(it is just a list of what is included listing part numbers, type of diode, and voltage/wattage, not a detailed datasheet of an individual diode)
I pretty much guessed what Z-diode stood for too.
3 types of diode included with this name: SPP100, SY625, SY400
i searched for SY400, and got a list of toilet roll holders! no luck with the other two either
thanks for the help i couldnt find a decent translator online, that one seems quite good