T
treez
Guest
Hi,
The attached circuits provide an 8.3V rail which supplies approx. 10mA.
The Left-hand version shows a diode D1, which is supposed to protect the NPN.
Our contractor tells us that this is essential. However, though I don’t like over-reverse-voltaging NPN Vbe junctions, I find this diode D1 to be unnecessary in this case, do you agree?
The attached circuits provide an 8.3V rail which supplies approx. 10mA.
The Left-hand version shows a diode D1, which is supposed to protect the NPN.
Our contractor tells us that this is essential. However, though I don’t like over-reverse-voltaging NPN Vbe junctions, I find this diode D1 to be unnecessary in this case, do you agree?