I don't know how to answer your question.What is the Base to Collector resistance be of 100 pnp transistors in parallel with total power 36V DC at 2.25A
Emitter has+36 V; 35.3V past the Emitter to base diode voltage the collector is GND the base to collector has a 14 ohm resistor tied into the header of the burn-in board and all of these PNP resistors are in parallel - there are 100 total per burn-in board. I had a design engineer ask me what he resistance between the base and collector would be? Mathematically I would have 1400 ohms in parallel 100 times = 14 but it does not seem correct or what would be correct for the application. Oh Yeah - there's 2.25 A total current - the object was to dissipate 80% of total peak power among 100 devices ~ 800mW per device.Don’t know why you want base to collector resistance. Typically no current flows between them.
And nothing in a bipolar transistor acts like a resistor.
Bob
I didn't ask for a paragraph describing a circuit. I don't do paragraphs. I did ask for a schematic diagram.All - PNP the The Emitter is more positive than the
Emitter has+36 V; 35.3V past the Emitter to base diode voltage the collector is GND the base to collector has a 14 ohm resistor tied into the header of the burn-in board and all of these PNP resistors are in parallel - there are 100 total per burn-in board. I had a design engineer ask me what he resistance between the base and collector would be? Mathematically I would have 1400 ohms in parallel 100 times = 14 but it does not seem correct or what would be correct for the application. Oh Yeah - there's 2.25 A total current - the object was to dissipate 80% of total peak power among 100 devices ~ 800mW per device.
There's no shame in just saying that you don't know - thanks anyway.I didn't ask for a paragraph describing a circuit. I don't do paragraphs. I did ask for a schematic diagram.
There is a great deal of shame in refusing to comply with a reasonable request and copping a snarky attitude on top of that.There's no shame in just saying that you don't know - thanks anyway.
You should exercise some humilityThere is a great deal of shame in refusing to comply with a reasonable request and copping a snarky attitude on top of that.
You're the one who needs help - not me.
And you some deference, as you are the one wanting free help.You should exercise some humility