Today, I started playing with transistors. I have here some teeny tiny 2n2222-108 transistors.
Actually, it didn't take long before I burned my finger against that transistor... It was really hot. I guess my mistake was to assume that a 680ohm resistance would be enough for the base.
Obviously I can't keep working like an idiot, otherwise it won't be long before something really bad happens.
But I have a problem here: I purchased these components from eBay, and except from the 2n2222-108, I have no way of identifying them to find a datasheet. Turns out that looking for "2n2222-108" on google yield me way too many results.
So, given that I only have "2n2222-108" as identifier, how can I know for sure the limits of the component?
Of course this question does not apply specifically to this component. I may be in the same case with any other.