MPS-U45 and CEN-U45 replacement options

Semiconductor Discrete Semiconductor Products
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1

Hello,

I’m looking for some equivalent transistors to the old MPS-U45 and CEN-U45 NPN transistors. I believe the direct replacement is the NTE272 (or so someone suggested) but another user mentioned that the BCX38C might be another suitable option. I honestly don’t know enough about these to make that judgement call and was hoping someone with some more experience might be able to confirm whether or not the NTE272 is a direct replacement and, more importantly, if the BCX38C is a suitable replacement.

Thanks!

2

Hello,
Welcome to the DigiKey TechForum. Looking at the specifications I wouldn’t suggest the BCX38C with a 800ma current rating as a possible alternate to MPS-U45 or CEN-U45 which are 2 amps. It looks like the NTE272 could be a good option but not one we carry. Checking in our system I wasn’t able to find an option to offer that has the same pinout as the MPS-U45 or CEN-U45 .