film cap size
- Thread starter redclover7!
- Start date
darwin999
Well-known member
You want a 5mm lead spacing, and a voltage rating of ≥25V for a 9V pedal, and maybe ≥35-50V for an 18V pedal.
Odds are that giant cap is rated for high voltage (say 100s of V) and/or high capacitance (say >1µF) - both factors increase the size.
Note added: I usually get film caps with voltage ratings of 50-100V for caps <200nF. Also watch the thickness of the cap, and see if it fits/matches on the allotted space on the PCB.
Odds are that giant cap is rated for high voltage (say 100s of V) and/or high capacitance (say >1µF) - both factors increase the size.
Note added: I usually get film caps with voltage ratings of 50-100V for caps <200nF. Also watch the thickness of the cap, and see if it fits/matches on the allotted space on the PCB.
Last edited:
darwin999
Well-known member
And as @Mentaltossflycoon notes, we've all done this (hopefully just once...), so welcome to the club!
The old 'live and learn' adage applies here.
The old 'live and learn' adage applies here.
darwin999
Well-known member
@redclover7! -
Just wait until you get to SMT/SMD devices & opamps - SOD vs SOT, SOIC vs VSSOP, etc, etc.
Plenty of opportunities to f*** up there on sizes and dimensions as well.
Yes, guilty as charged...
Just wait until you get to SMT/SMD devices & opamps - SOD vs SOT, SOIC vs VSSOP, etc, etc.
Plenty of opportunities to f*** up there on sizes and dimensions as well.
Yes, guilty as charged...
Stickman393
Well-known member
Cap size is gonna depend on dielectric as well.
Like others said: getting up to 220nf in a compact package is easy with PET caps.
I kinda like going through mouser and using the filters to find what parts will fit my particular use case.
Relatively compact PET caps can be found up to about 1uF, but you gotta dig for em. I'm a fan of using 2.5mm LS rectangular PET caps in place of electrolytics.
Buying the wrong caps is a rite of passage round these parts.
Like others said: getting up to 220nf in a compact package is easy with PET caps.
I kinda like going through mouser and using the filters to find what parts will fit my particular use case.
Relatively compact PET caps can be found up to about 1uF, but you gotta dig for em. I'm a fan of using 2.5mm LS rectangular PET caps in place of electrolytics.
Buying the wrong caps is a rite of passage round these parts.
JohnnyCreepy
Well-known member
I have same caps in my amp. Funny thing is that lead spacing was too narrow for amp board so had to solder some bare wire extensions to the caps. Guess same works other way around if you don’t have patience/time/money/self-respect for correct sized ones.
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