I have a circuit that has a heavy-duty 5V regulator (LM340K-5.0 to be precise, the LM309K is probably an equivalent).
As I'm considering reproducing / simplifying the original, I've hit a stumbling block with the regulator. Seems all the reputable sources (Digi-Key et al) all want to charge over $50 for ONE, and which makes the project unfeasible... I see some are available for less than $10, but I don't want to get rooked with a possibly counterfeit part.
I don't know for sure yet exactly much regulator I DO need (but two 12V supplies exist on the board, presenting a possibility of splitting the 5V load), but just wanted to see if anyone else ran into this and what, if any, solution they chose.
Thoughts?
As I'm considering reproducing / simplifying the original, I've hit a stumbling block with the regulator. Seems all the reputable sources (Digi-Key et al) all want to charge over $50 for ONE, and which makes the project unfeasible... I see some are available for less than $10, but I don't want to get rooked with a possibly counterfeit part.
I don't know for sure yet exactly much regulator I DO need (but two 12V supplies exist on the board, presenting a possibility of splitting the 5V load), but just wanted to see if anyone else ran into this and what, if any, solution they chose.
Thoughts?