lm317 for 445 question

[nosebleedXD]

So basically i was wondering..... I recently i figured out a resistor must be able to withstand 1W of power. Also i realised my 1n4001 diode only withstands 1w and i plan on using a 1 ohm resistor giving a 1.25A max current. Would it be better to use the 1n4001 or to not use it at all.

 

[rhd]

If it's for the protection diode, then I think it's better than nothing. My understanding is that it may hold up for a few seconds or so - perhaps long enough for you to realize you've wired the circuit / your battery wrong, and disconnect power (which might be long enough to safe your diode)

Could be wrong on this - just my gut.

 

[nosebleedXD]

Oh alright. So also for the resistor part, i believe i should get at least one with 2W

 

[rhd]

yep, or parallel 2x 1w resistors with double the ohms each