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Capacitor package - RF Cafe Forums
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Guest
Post subject: Capacitor package Posted: Thu Aug 18, 2005 3:44
am
hello!
can any one explain how do we select different capacitor
packages (0603,0805 etc) if power to be delivered is 20w,40w,100w etc.
I understand their inductive effect but want to know about the effect
of ESR and hence power dissipation.
Thanks
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IR
Post subject: Posted: Thu Aug 18, 2005 4:22 am
Site
Admin
Joined: Mon Jun 27, 2005 2:02 pm
Posts: 373
Location:
Germany
As bigger is the package as higher is the ESR value.
_________________
Best regards,
- IR
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Guest
Post subject: Posted: Thu Aug 18, 2005 5:23 am
Thanks for your reply. That means we can use 0603 for higher power applications
(eg, 100W).
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Guest
Post subject: Posted: Thu
Aug 18, 2005 7:45 am
100W equates to 100V, so you best check the
maximum voltage for the capacitor, it should be at least 150V to 200V.
Top
IR
Post subject: Posted: Thu Aug 18, 2005 8:21
am
Site Admin
Joined: Mon Jun 27, 2005 2:02 pm
Posts: 373
Location: Germany
In general as larger the package
as higher is the operating voltage, this is true both for ceramic capacitors
and for tantalum capacitors. This is because the distance between the
capacitor's plate is larger and it can withstand larger brekdown voltage.
Always consult the data sheet of the specific capcitor you intend to
use, it will provide you with the exact information. Also a good practice
for capacitors is to avoid working above 60% of the maximal voltage
rating.
Good luck!
_________________
Best regards,
- IR
Top
Guest
Post subject: Posted: Thu
Aug 18, 2005 8:34 am
Many thanks for your comments!
Posted 11/12/2012
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