FC or FM

impsick · 2nd October 2007, 01:31 AM

so im wondering why it "seems" as though Panasonics FC capacitors are more popular then the FM's among DIYers?
Looking at the data sheets it seems as though the fm's pretty beat the fc's in every aspect by a little, unless im missing something.
Do the fc's just sound better then the fm's or what? opinions...?
I also noticed that places charge more for the FC's even though the FM's are a much smaller package volt to volt, uf to uf. So i wonder if its just the desire the DIYers have for them that companies boost cost to make a little more or all specs aside the fc's are better?

error401 · 2nd October 2007, 01:42 AM

Mostly I think it's that you really have to design around FMs from the start, due to the lack of available value/voltage/size combinations. Compared to FC, the selection is pretty dismal. It's generally difficult to take an existing design/board and tack FMs in where FCs were designed, since the values will probably not be available. They're harder to get and there are less values, so they get less used.

That's about it. I use FMs whenever possible.

impsick · 2nd October 2007, 01:46 AM

ya your probably correct. the values are limited. size is limited, though for the most part they are a much smaller cap.
i wonder why fm stops at 50v?

Leolabs · 2nd October 2007, 02:46 AM

Availability is a main issue

2nd October 2007, 01:31 AM	#1
impsick diyAudio Member Join Date: Dec 2006	FC or FM so im wondering why it "seems" as though Panasonics FC capacitors are more popular then the FM's among DIYers? Looking at the data sheets it seems as though the fm's pretty beat the fc's in every aspect by a little, unless im missing something. Do the fc's just sound better then the fm's or what? opinions...? I also noticed that places charge more for the FC's even though the FM's are a much smaller package volt to volt, uf to uf. So i wonder if its just the desire the DIYers have for them that companies boost cost to make a little more or all specs aside the fc's are better? __________________ "Nothing happens for a reason. There are just reasons why things happen." Quote me on that. http://stores.ebay.com/AudioGrade?_rdc=1

2nd October 2007, 01:46 AM	#3
impsick diyAudio Member Join Date: Dec 2006	ya your probably correct. the values are limited. size is limited, though for the most part they are a much smaller cap. i wonder why fm stops at 50v? __________________ "Nothing happens for a reason. There are just reasons why things happen." Quote me on that. http://stores.ebay.com/AudioGrade?_rdc=1

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2nd October 2007, 01:42 AM	#2
error401 diyAudio Member Join Date: Mar 2007	Mostly I think it's that you really have to design around FMs from the start, due to the lack of available value/voltage/size combinations. Compared to FC, the selection is pretty dismal. It's generally difficult to take an existing design/board and tack FMs in where FCs were designed, since the values will probably not be available. They're harder to get and there are less values, so they get less used. That's about it. I use FMs whenever possible.

2nd October 2007, 02:46 AM	#4
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	Availability is a main issue

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