Hi!
For an example, I have some transistors from and old phone. Two of them are marked:
C945 G-811
C819 S9015
respectively. I immediately found a data sheet for C945 but nothing about G-811. The one I found seems to be called C945 TO-92, if I understand correctly. Can I assume they are similar? What these are is really not that important right now, but an example of my troubles getting into the world of electronics.
I have this same experience from previous attempts at identifing electronic components. So I guess my question is if there is a standard for component marking. Or, in practical terms: How do I find a data sheet for any given component marking, and if I find something close, can I tell if I can use it instead?
I'd be happy if someone could sort this out or point me to a source of knowledge that can.
Ciao!
Mech
For an example, I have some transistors from and old phone. Two of them are marked:
C945 G-811
C819 S9015
respectively. I immediately found a data sheet for C945 but nothing about G-811. The one I found seems to be called C945 TO-92, if I understand correctly. Can I assume they are similar? What these are is really not that important right now, but an example of my troubles getting into the world of electronics.
I have this same experience from previous attempts at identifing electronic components. So I guess my question is if there is a standard for component marking. Or, in practical terms: How do I find a data sheet for any given component marking, and if I find something close, can I tell if I can use it instead?
I'd be happy if someone could sort this out or point me to a source of knowledge that can.
Ciao!
Mech