Author Topic: Can someone help me Identify these components?  (Read 1175 times)

0 Members and 1 Guest are viewing this topic.

Offline THATguy

  • Regular Contributor
  • *
  • Posts: 90
  • Country: nz
Can someone help me Identify these components?
« on: May 07, 2017, 03:38:41 pm »
https://flic.kr/p/Unc5Vi

From left.
White/light grey, Pink/violet, Cream/tan, Greenish, Yellow, Brown, Black/navy

The top two white sizes, I'm not totally sure if they are Capacitors.
Same for the Pink & Cream top ones that have 8 contacts, these were marked as CN on the PCB.

Here is another picture of the 8 contact ones on the Pentium motherboard.
https://flic.kr/p/UhAEKY

Any idea what E is in this picture?
https://flic.kr/p/UkcpB8
 

Offline ataradov

  • Super Contributor
  • ***
  • Posts: 4947
  • Country: us
    • Personal site
Re: Can someone help me Identify these components?
« Reply #1 on: May 07, 2017, 03:44:01 pm »
CN is a capacitor network, basically 4 capacitors in the same package. The rest of them look like caps too.
Alex
 

Offline THATguy

  • Regular Contributor
  • *
  • Posts: 90
  • Country: nz
Re: Can someone help me Identify these components?
« Reply #2 on: May 07, 2017, 04:25:45 pm »
Thanks. Any chance the 8 contact ones could be ESD suppressor Array?

Oh and I have a feeling the White MLCC's could infact be
EMI Noise Suppression Filter, ESD protection device made of silicon.

The Mystery item could also be
Ceramic Resonator, or Balun, or RF passive Coupler.

(I just came across images of these components while searching for other things).
 

Offline ataradov

  • Super Contributor
  • ***
  • Posts: 4947
  • Country: us
    • Personal site
Re: Can someone help me Identify these components?
« Reply #3 on: May 07, 2017, 04:31:17 pm »
Thanks. Any chance the 8 contact ones could be ESD suppressor Array?
Nope. Here is what they are https://www.digikey.com/product-detail/en/samsung-electro-mechanics-america-inc/CL31B104KACNBNC/1276-2741-2-ND/3888399

Oh and I have a feeling the White MLCC's could infact be
EMI Noise Suppression Filter, ESD protection device made of silicon.
MLCC is a MultiLayer Ceramic Capacitor. They are made out of ceramics and metals, and they are just capacitors.


Alex
 

Offline THATguy

  • Regular Contributor
  • *
  • Posts: 90
  • Country: nz
Re: Can someone help me Identify these components?
« Reply #4 on: May 07, 2017, 04:37:39 pm »
Yes but I believe I've miss identified them as MLCC's

I think the Black/navy are actually
The special SMD chip anti-EMI bead ferrites.
 

Offline ataradov

  • Super Contributor
  • ***
  • Posts: 4947
  • Country: us
    • Personal site
Re: Can someone help me Identify these components?
« Reply #5 on: May 07, 2017, 04:40:02 pm »
Yes but I believe I've miss identified them as MLCC's
So here is is what you do with components like this - carefully collect them, and put them into a trash bin.

They cost fractions of a cent. What's the point of trying to identify them?
Alex
 

Offline THATguy

  • Regular Contributor
  • *
  • Posts: 90
  • Country: nz
Re: Can someone help me Identify these components?
« Reply #6 on: May 07, 2017, 04:50:37 pm »
So I can reuse them.
But also so I don't collect the wrong ones.
 

Offline ataradov

  • Super Contributor
  • ***
  • Posts: 4947
  • Country: us
    • Personal site
Re: Can someone help me Identify these components?
« Reply #7 on: May 07, 2017, 05:00:18 pm »
So I can reuse them.
That is a really bad idea. The chance of misidentifying is high, and results can be bad. Those things are stupid cheap.
Alex
 

Online blueskull

  • Supporter
  • ****
  • Posts: 10321
  • Country: cn
  • Power Electronics Guy
Re: Can someone help me Identify these components?
« Reply #8 on: May 07, 2017, 05:09:34 pm »
MLCC arrays can be more expensive than single MLCCs because they save cost in manufacturing. It's almost certain that even in a low wage country with fully automated system, assembling cost of a common 100nF 0402 MLCC or 0402 resistor will be higher than the part itself.
So, if you have to waste your time disassemble these just to save cents, then you better just buy them from a distributor. They cost next to nothing.
Besides, these non safety rated MLCCs are fragile. You don't want to drop them or strike them with and sharp objects. Desoldered MLCCs have no quality guarantee at all.
The higher fail rate, higher part count (so even a small fail rate can be a big issue) combines with low unit cost makes salvaging MLCCs kind of pointless, unless we are talking some specialized ones such as very high capacitance ones or RF ones that are usually quite expensive and it is worth to take the risk.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf