The online transistor catalog from Express Technology Group lists thousands of transistor types from dozens of transistor manufacturers and are available for purchase. If your part is not listed, you can call them and they will be happy to run a search on the availability of your transistor type.
Hard-to-find or obsolete transistors that have not been in use for years or decades may still be available. Just supply as much information about the transistor specifications, original manufacturer, applications it was used in, or other useful information to help locate the exact replacement part.
Express Technology Group has over 15 years of electronic industry knowledge with a team that is dedicated to fulfilling client expectations with the highest quality of customer service. They provide parts to a variety of industries such as defense, medical, automotive and industrial equipment manufacturers.