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jarthel 14th September 2006 02:29 PM

protection diodes in LM317 circuits
 
Hi.
In the LM317 datasheet, it talks about using protection diodes (facing from output pin to input pin) when the output cap is more than 25uF.

The suggested diode is 1N4002 which is quite common.

My question now is: Can I use other dioes? I already have some ultrafast Onsemi (MUR1100) and wondering if I can use this instead.

Thank you for the help

john curl 14th September 2006 07:12 PM

You can, but it might waste the potential use of the diode for a more useful purpose.

jarthel 14th September 2006 10:28 PM

Quote:

Originally posted by john curl
You can, but it might waste the potential use of the diode for a more useful purpose.

thanks for the reply. I got plenty of the onsemis so it's more wasteful not to use them :)


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