Safe to run IRF540 on +-42V?

Fritzell · 28th February 2007, 03:32 PM

As topic says, Is it safe to run IRF540 on +-42V voltage in the amp (54Wrms 8R)? IRF540 are rated 100V. Output swing won't be higher than 35Vp so total maximum Vds will be 77V, i'd say 80V or a little more due to transformer tolerations. What do you think? It's quite close the limits of brakedown. Or should I go with IRF640 (rated 200V) ?

big jim · 28th February 2007, 04:46 PM

hi fritzell

yes

jim

28th February 2007, 03:32 PM	#1
Fritzell diyAudio Member Join Date: Jul 2004 Location: Sweden	Safe to run IRF540 on +-42V? As topic says, Is it safe to run IRF540 on +-42V voltage in the amp (54Wrms 8R)? IRF540 are rated 100V. Output swing won't be higher than 35Vp so total maximum Vds will be 77V, i'd say 80V or a little more due to transformer tolerations. What do you think? It's quite close the limits of brakedown. Or should I go with IRF640 (rated 200V) ?

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28th February 2007, 04:46 PM	#2
big jim diyAudio Member Join Date: Feb 2006 Location: london	hi fritzell yes jim

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