I have a python security module for my car, and it has a couple of fried circuits in it, I can repair it, but there are a few small parts that need to be replaced, it is a small, half round thing with 3 prongs less than a square centimeter (sorry) with a flat spot that reads c9012 H-550 I need a couple of those, where can you buy those electronic parts? radioshack? Thanks for any help.