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chopper
Active Contributor

Join Date: Nov 2009
Posts: 24

MOSFET Questions

11/23/2009 5:50 AM

Hi guys, i wana know is there a difference between a p channel mosfet which has a positive Drain-source Voltage and a negative Drain-source Voltage. e.g -60V and 60V?

same goes to the Drain Current current,is there a difference between the positive and neagtive drain current?e.g 8A and -8A?


1 more thing i am looking for this MOSFET P CH, STP12OF06 or STN5PF02V but i cant get it around where i live, can anyone give me an alternative mosfet that can give me similar result?

Thanks for replying
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electrone
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Join Date: Jan 2006
Posts: 311
Good Answers: 2
#1

Re: MOSFET

11/23/2009 8:28 AM

Hi. indeed. The drain and source are in effect bridged by an intrinisic diode that realistically prevents a positive drain source voltage of more than about a volt for P-ch MOSFETs, depending on the diode junction voltage drop.

As for drain-source current, if the gate is enhanced to turn the MOSFET on when the drain is positive with respect to the source, the channel can present a relatively easy current path in parallel with the intrinisic diode.
Bill
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#2

Re: MOSFET Questions

11/23/2009 2:59 PM
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You might be interested in: RF Transistors, MOSFET, Power MOSFET, Metal-oxide Semiconductor FET (MOSFET)


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