EEVblog Electronics Community Forum

Electronics => Projects, Designs, and Technical Stuff => Topic started by: iXod on October 16, 2021, 10:11:56 pm

Title: Cap working voltage?
Post by: iXod on October 16, 2021, 10:11:56 pm
Ordered this cap for a fan and after receiving it I notice that it has no marking of the voltage.

I searched “CBB61” and see them in various voltages.

Would you trust this one to be 250v, as the eBay listing says, or return it and find one with V marking?

Thanks.

EDIT:
https://www.ebay.com/itm/185097694219 (https://www.ebay.com/itm/185097694219)
Title: Re: Cap working voltage?
Post by: james_s on October 16, 2021, 10:23:59 pm
Where did you order it from? What kind of capacitor is it? What is the purpose in the fan? Is it a run capacitor for a PSC motor, a start capacitor for a capacitor start motor or a noise suppression capacitor?
Title: Re: Cap working voltage?
Post by: Psi on October 16, 2021, 10:31:33 pm
google image search suggest it's some sort of 450V motor cap
Title: Re: Cap working voltage?
Post by: iXod on October 16, 2021, 11:06:15 pm
google image search suggest it's some sort of 450V motor cap
This is to my point exactly. It’s advertised (in the title of the ePay page) as a 250v cap. No voltage markings on the cap.

https://www.ebay.com/itm/185097694219 (https://www.ebay.com/itm/185097694219)

What would you do with this cap?
Title: Re: Cap working voltage?
Post by: TimFox on October 16, 2021, 11:08:37 pm
The image in the eBay listing definitely shows 250 V on the capacitors, but they probably took the image from a datasheet rather than photographing the object (without voltage markings) that they sent you.
You should have a case for a refund, should you want to pursue it.
Title: Re: Cap working voltage?
Post by: iXod on October 16, 2021, 11:42:49 pm
The image in the eBay listing definitely shows 250 V on the capacitors, but they probably took the image from a datasheet rather than photographing the object (without voltage markings) that they sent you.
You should have a case for a refund, should you want to pursue it.
What would you do? Return or use it?
Title: Re: Cap working voltage?
Post by: james_s on October 17, 2021, 04:11:04 am
I'd just use it, if it fails then buy a better one next time. The listing says 250V, it looks about the right size to be a 250V cap, I would assume that's what it is.