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Can I replace BF245C JFET with J201 JFET?
Can I replace BF245C JFET with J201 JFET?
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Old 4th December 2005, 12:04 AM   #1
bigmike216 is offline bigmike216  Canada
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Default Can I replace BF245C JFET with J201 JFET?

http://www.fairchildsemi.com/ds/BF%2FBF245C.pdf

http://www.fairchildsemi.com/ds/J2/J201.pdf


I understand pinout is backwards, but that's not a big deal.
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Old 7th December 2005, 06:14 AM   #2
bigmike216 is offline bigmike216  Canada
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Anyone know?
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Old 7th December 2005, 06:50 AM   #3
wrenchone is offline wrenchone  United States
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Well, the "C" version of the Euro-fet is at the hgh end of the IDSS distribution in its device group, and the J201 will be on the low side of its device group, typically below 1ma. If you drop the 201 into a circuit designed to use the other FET, the bias will most likely be way off because of the difference in quiescent current. What is the circuit where you were planning to do this substitution?
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