Nippon - fake or not?

[sansonet]

I just received caps I bought on ebay (US seller), they look OK, but sizing is not up to specs - KY series come in 2 sizes 10 X 20 and 12.5 X 15 - http://www.mouser.com/United-Chemi-C...z0wrjwZ1z0x6ed
Those are 8.2 mm X 19.4 mm, lead space 4 mm - is that normal?

[goodpsusearch]

Re: Nippon - fake or not?

It's probably some custom order.

[sansonet]

Re: Nippon - fake or not?

Thank you, so they should be OK to use? Smaller size is not a problem?

[goodpsusearch]

Re: Nippon - fake or not?

I would say they are genuine. The esr may be a bit higher than the values of the 10mm or 12.5mm caps.

[mockingbird]

Re: Nippon - fake or not?

Those are fake.

[sansonet]

Re: Nippon - fake or not?

Those are fake.

I was about to solder them in board I'm trying to fix, now I'm confused...
I have capacitor tester - just tried all 10 of those, they test 900uf-950uf, most no more than 930uf. I also have KY series 25V, with proper case size and all test slightly over 1000uf - which is usual result when I test new caps of good brand names.
Does it confirm they are fake?

[Sparkey55]

Re: Nippon - fake or not?

Thank you, so they should be OK to use? Smaller size is not a problem?

Care to post a link to the eBay seller?

[sansonet]

Re: Nippon - fake or not?

Yes, he's "top rated", so I thought he will be fine, but he sent me KZG series first time which have bad reputation, also specs are different than KY series. Pics in listings are for KY series - I told him that, he wanted proof, asked to me to send him pics, then wants me to mail them back before sending replacement - all that over $4 caps including shipping... I would send replacement without questions asked if I would send wrong item myself, specially for such cheap item.
http://www.ebay.com/usr/jacobsparts

[Sparkey55]

Re: Nippon - fake or not?

Yes, he's "top rated", so I thought he will be fine, but he sent me KZG series first time which have bad reputation, also specs are different than KY series. Pics in listings are for KY series - I told him that, he wanted proof, asked to me to send him pics, then wants me to mail them back before sending replacement - all that over $4 caps including shipping... I would send replacement without questions asked if I would send wrong item myself, specially for such cheap item.
http://www.ebay.com/usr/jacobsparts

With a feedback 0f 109 Negative and 155 Neutral there is no way in Hell that I would ever buy from him. Those are more than likely fakes.

[retiredcaps]

Re: Nippon - fake or not?

he wanted proof, asked to me to send him pics, then wants me to mail them back before sending replacement - all that over $4 caps including shipping.

For seller attitude's like that I would open an ebay resolution case and leave negative afterwards.

By any reasonable person's standard, an incorrect fulfillment of product (i.e. shipping the wrong thing to a customer) should result in the seller doing the right thing. That is, sending the correct product and if the seller wants the incorrect product back, the seller should pay return shipping.

[mockingbird]

Re: Nippon - fake or not?

I was about to solder them in board I'm trying to fix, now I'm confused...
I have capacitor tester - just tried all 10 of those, they test 900uf-950uf, most no more than 930uf. I also have KY series 25V, with proper case size and all test slightly over 1000uf - which is usual result when I test new caps of good brand names.
Does it confirm they are fake?

Those are absolutely fake. You could have bought the same thing from China for a lot less. I don't think you have a legitimate claim against him. Caveat empor applies if you buy caps on eBay. I'm not saying I'm better than you and that I don't sometimes buy caps off eBay myself, but I know how to tell the fakes from the real thing.

[sansonet]

Re: Nippon - fake or not?

T
I'm not saying I'm better than you and that I don't sometimes buy caps off eBay myself, but I know how to tell the fakes from the real thing.

How do you tell it? I'm trying to match it with datasheet and test them with capacitor tester, not sure what else I can do. I just soldered 25V caps to board instead of those 16V, but since they are bigger, I bended legs a little on two caps near heatsink to fit them better - I wonder if this is OK like that, or I should wait and get smaller caps instead? Also, are those look like genuine caps? They test good as I wrote earlier, but now I'm not sure about anything anymore...

[sansonet]

Re: Nippon - fake or not?

By any reasonable person's standard, an incorrect fulfillment of product (i.e. shipping the wrong thing to a customer) should result in the seller doing the right thing. That is, sending the correct product and if the seller wants the incorrect product back, the seller should pay return shipping.

I agree, this what I told to seller because initially he just told me to send it back. Since now they have return form on ebay which charges seller for return label if something is wrong with product, I used that form to send it back. Still, lot of hassle over such cheap return (shipping cost is 1/2 of total price), lot of messages, making pics and sending them to seller, etc. I would not bother my buyer with all that and would just send correct item right away.

[budm]

Re: Nippon - fake or not?

"I have capacitor tester - just tried all 10 of those, they test 900uf-950uf, most no more than 930uf. I also have KY series 25V, with proper case size and all test slightly over 1000uf - which is usual result when I test new caps of good brand names.
Does it confirm they are fake?"
When I test new cap, the capacitance are usually on the high side, never run into ones with lower capacitance. How about the ESR reading? Smaller body will usually has lower ripple current and higher ESR.
Is this TV power supply?
I would have spend the money and get them from Mouser or Digikey.

[sansonet]

Re: Nippon - fake or not?

How about the ESR reading? Smaller body will usually has lower ripple current and higher ESR.

I have simple tester which shows just capacitance, I'm not sure about ESR of those.

[sansonet]

Re: Nippon - fake or not?

Is this TV power supply?
I would have spend the money and get them from Mouser or Digikey.

Yes, TV power supply, but those caps look and test OK, they just bigger and I already waited all that time with returns and replacement shipments, I just want to get done with it and put all thing together, unless those 25V caps are wrong choice and it's important to get smaller ones.

[momaka]

Re: Nippon - fake or not?

If they are fakes, they are pretty good fakes. For one, both the vent stamp and the rubber bung appear correct. The text is a bit sketchy, but I've seen weird-looking genuine KY and KZE's too, so I'll leave it at that.

If the TV is yours and you don't mind opening it again when they fail, then give it a go. Try at your own risk, though. Most of the time, when caps fail, nothing else is damaged in the device they are in. However, on rare occasions they can damage other components.

[sansonet]

Re: Nippon - fake or not?

If they are fakes, they are pretty good fakes. For one, both the vent stamp and the rubber bung appear correct. The text is a bit sketchy, but I've seen weird-looking genuine KY and KZE's too, so I'll leave it at that.

This is weird, I just replaced main board in Olevia TV and realized it has the same capacitor in it - size and everything just like in ones I got. So there might be a chance they are real? I still wonder why they read less than 1000uf, since that TV was manufactured in 2007 - cold it be old stock and low readings because of it?

[sansonet]

Re: Nippon - fake or not?

Most of the time, when caps fail, nothing else is damaged in the device they are in. However, on rare occasions they can damage other components.

Do you know what components can be damaged? I have that weird problem with plasma, I posted about it while ago but never got replies, still trying to find out what happened to it - tested most mosfets and some diodes - all appears to be good, but TV is completely dead now https://www.badcaps.net/forum/showthread.php?t=42622

[Jooo]

Re: Nippon - fake or not?

This is weird, I just replaced main board in Olevia TV and realized it has the same capacitor in it - size and everything just like in ones I got. So there might be a chance they are real? I still wonder why they read less than 1000uf, since that TV was manufactured in 2007 - cold it be old stock and low readings because of it?

They have 20% tolerance, so anything between 800uF and 1200uF is OK for those caps.
Post pictures of the other side of the capacitor (with the date code and temperature markings), that's where fakes usually mess up.