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Old 13th December 2010, 04:33 PM   #1
el156 is offline el156  Portugal
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Default Rubycon oil caps

Hi All Diys !
I have some Rubycon oil caps, and in one side of the cap is aluminium ,but the other side is insulated ,like in an Electrolytic cap,and my question is if i can connect it either way ,or does it have to be connected in a special way,like the aluminium side for input or output? Positive or negative ?
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Old 13th December 2010, 05:28 PM   #2
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It can go both ways, but...The aluminum side, the can that surrounds the cap, is usually connected to the source and the insulated end to the load. The can acts like a shield.
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Old 13th December 2010, 05:53 PM   #3
el156 is offline el156  Portugal
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Quote:
Originally Posted by SemperFi View Post
It can go both ways, but...The aluminum side, the can that surrounds the cap, is usually connected to the source and the insulated end to the load. The can acts like a shield.
Thanks Semperfi... and i noticed the caps have some arrows,and now i know that indicates the path of the signal....didnt have experience with this caps before...
Silvino
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Old 13th December 2010, 06:06 PM   #4
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What are the voltage and capacitance rating of these capacitors? What's the approximate size of the can? That can style is unfamiliar to me in the Rubycon line.

If it's a polarized cap the arrow indicates DC polarity. If it's a nonpolarized cap the arrow indicates the inner foil connection. In some circuits sensitive to stray electrostatic coupling it may help with noise reduction to connect the outer foil side to the part of the circuit that has the lower impedance to ground, etc.

Thanks!

Michael
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Old 13th December 2010, 06:37 PM   #5
el156 is offline el156  Portugal
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Quote:
Originally Posted by Michael Koster View Post
What are the voltage and capacitance rating of these capacitors? What's the approximate size of the can? That can style is unfamiliar to me in the Rubycon line.

If it's a polarized cap the arrow indicates DC polarity. If it's a nonpolarized cap the arrow indicates the inner foil connection. In some circuits sensitive to stray electrostatic coupling it may help with noise reduction to connect the outer foil side to the part of the circuit that has the lower impedance to ground, etc.

Thanks!

Michael
The can mesures 3 cm long ,the radius is 1,8 cm and there is a code
CP-C 29 ,and 0,22uf at 600 V .
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Old 15th December 2010, 01:44 PM   #6
el156 is offline el156  Portugal
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Quote:
Originally Posted by el156 View Post
The can mesures 3 cm long ,the radius is 1,8 cm and there is a code
CP-C 29 ,and 0,22uf at 600 V .
Thanks
Does someone knows if this caps are any good ? As soon as i can i will post a pic of them.
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Old 15th December 2010, 02:33 PM   #7
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nah, not really good, u might as well send them to me...
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Old 15th December 2010, 03:11 PM   #8
djn is offline djn  United States
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Might make good coupling caps. Send them to me and I'll let you know.
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Old 15th December 2010, 06:35 PM   #9
el156 is offline el156  Portugal
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But does someone knows the meaning of the code CP-C 29 ? I bought this caps for 1 Euro each . Do they worth the money?
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