BJT as electronics switch

[bananasiong]

25mA * 80Ohm = 2V

Is this the minimum value?

 

[akg]

25mA * 80Ohm = 2V

Is this the minimum value?

Yes theoretically

 

[bananasiong]

Yes, thanks.
Can i know about FET's?
I've created a new thread here:
https://www.electro-tech-online.com/threads/fets.24177/

 

[bananasiong]

Hi,
Ib should be 1/10th of the Ic to turn the load on for any model of npn BJT's?

 

[audioguru]

Hi,
Ib should be 1/10th of the Ic to turn the load on for any model of npn BJT's?

All transistor datasheets guarantee how well a transistor saturates when its base current is 1/10th its collector current. They have curves showing typical values with less base current and how poorly the transistor saturates, but no guarantee.