Author Topic: What's this please? (Component Advice)  (Read 562378 times)

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Offline fluxcapacitor

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Re: What's this please? (Component Advice)
« Reply #375 on: September 16, 2013, 10:12:47 pm »
I am thinking it's a regulator, part that says GGRTW which I can't find on google.

What is the pcb from ? + model name/number on pcb etc .
 

Offline Alexei.Polkhanov

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Re: What's this please? (Component Advice)
« Reply #376 on: September 16, 2013, 11:49:49 pm »
Wow, lovely sensors they have - MS5805 includes 24 DAC with 15 cm altitude resolution. :-)
 

Offline mikec

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Re: What's this please? (Component Advice)
« Reply #377 on: September 22, 2013, 09:59:01 pm »
Ok so this component is a capacitor I am pretty sure of that, however I have no idea what type of capacitor. Doesn't look like any electrolytic or ceramic capacitor I have ever seen.

 

Offline fluxcapacitor

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Re: What's this please? (Component Advice)
« Reply #378 on: September 22, 2013, 11:43:41 pm »
Ok so this component is a capacitor I am pretty sure of that, however I have no idea what type of capacitor. Doesn't look like any electrolytic or ceramic capacitor I have ever seen.

what is the pcb from ? make/model might help if theres a schematic.
 

Offline Rufus

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Re: What's this please? (Component Advice)
« Reply #379 on: September 23, 2013, 01:07:42 am »
Ok so this component is a capacitor I am pretty sure of that,

It is a polyester film capacitor mostly (if not exclusively) made by EPCOS.
 

Offline Alexei.Polkhanov

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Re: What's this please? (Component Advice)
« Reply #380 on: September 23, 2013, 03:25:55 am »
Yes very much like it. I wonder who painted the sides with blue paint?
 

Offline fluxcapacitor

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Re: What's this please? (Component Advice)
« Reply #381 on: September 23, 2013, 08:33:46 am »
Theres some datasheets here:

http://www.epcos.com/web/generator/Web/Sections/ProductCatalog/Capacitors/FilmCapacitors/MetallizedPolyester/Page,locale=en.html

The caps are ,radial Boxed,radial uncoated ,radial coated etc and a note in one the datasheets about mounting -

Notes on mounting
When mounting these capacitors, take into account creepage distances and clearances to
adjacent live parts. The insulating strength of the cut surfaces to other live parts of the circuit is
1.5 times the capacitors rated DC voltage, but is always at least 300 V DC.

That could be why theyve been "painted"  ?
 

Offline SeanB

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Re: What's this please? (Component Advice)
« Reply #382 on: September 23, 2013, 06:12:17 pm »
The painting is just the "extra protected" version. Those generally are nice capacitors, and are made on a large wheel and then cut to size before final lead attachment.
 

Offline chicken

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Re: What's this please? (Component Advice)
« Reply #383 on: September 25, 2013, 03:59:58 pm »
What are the components in the metallic packages? I never noticed them before.

The packages look like oscillators. But the components are used in power supply related context (big inductors and caps), which I think eliminates that possibility. What else? Fancy caps? Tiny transformers?

Source: 27" iMac teardown on iFixit
http://www.ifixit.com/Teardown/iMac+Intel+27-Inch+EMC+2639+Teardown/17828/1
 

Offline chicken

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Re: What's this please? (Component Advice)
« Reply #384 on: September 25, 2013, 06:48:31 pm »
Ok, I think I figured it out: International Rectifier DirectFET MOSFETs
http://www.irf.com/product-info/directfet/
 

Offline N TYPE

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Re: What's this please? (Component Advice)
« Reply #385 on: September 27, 2013, 02:20:39 pm »
Hi can anybody tell me what these parts are soldered to the legs of this to92?
Have no idea what they might be called
 

Offline Codemonkey

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Re: What's this please? (Component Advice)
« Reply #386 on: September 27, 2013, 02:27:25 pm »
Hi can anybody tell me what these parts are soldered to the legs of this to92?
Have no idea what they might be called

They look like PCB Turrets to me
 

Offline notsob

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Re: What's this please? (Component Advice)
« Reply #387 on: September 27, 2013, 11:40:34 pm »
 

Offline IZ3IJG

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Re: What's this please? (Component Advice)
« Reply #388 on: October 07, 2013, 11:18:51 am »
Guess what is this
 

Offline c4757p

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No longer active here - try the IRC channel if you just can't be without me :)
 

Offline JoeO

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The day Al Gore was born there were 7,000 polar bears on Earth.
Today, only 26,000 remain.
 

Offline IZ3IJG

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« Last Edit: November 05, 2013, 10:52:57 am by IZ3IJG »
 

Online PA0PBZ

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Re: What's this please?
« Reply #392 on: October 09, 2013, 06:41:20 pm »
Oh! Oh! May I?

The hand drawn part is the rough copy of the silk screen that was under the component. Basically a zigzag in a rectangle. Probably some power component, but I have never seen the symbol, so no idea.

EDIT: added a picture with a ruler. It's about 10mm wide.


What happened to your photos?

My guess: after 2.5 years most bits are recycled and used somewhere else on the 'net?
Keyboard error: Press F1 to continue.
 

Offline Fryguy

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Re: What's this please? (Component Advice)
« Reply #393 on: October 17, 2013, 09:29:36 am »
Hi can anybody tell me what these parts are soldered to the legs of this to92?
Have no idea what they might be called

To me it looks like they are crimped to the to92's legs so i'd say they are contacts for a twist socket like the ones on a fluorescent lamp starter .

I guess the to92 part is a temperature sensor .
« Last Edit: October 17, 2013, 09:33:40 am by Fryguy »
May the forces of evil get confused on their way to your home !
 

Offline Isaac

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Re: What's this please? (Component Advice)
« Reply #394 on: October 30, 2013, 11:21:33 pm »
Hi,

It's a inductorless SR IC. Its powered from the mains (110/240 V ac). Ok, I know what it is, but i can not identify the part number on the IC. I wonder if someone can identify the IC based on the traces on the pcb. I don't have a better picture of it. It's from the "Moteino"  website.

Thanks.
 
 

Offline fluxcapacitor

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Re: What's this please? (Component Advice)
« Reply #395 on: October 31, 2013, 12:45:19 am »
the picture isnt clear enough.

http://lowpowerlab.com/contact/
 

Offline Isaac

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Re: What's this please? (Component Advice)
« Reply #396 on: October 31, 2013, 02:05:27 pm »
According to the guy, it's a Supertex SR-086 Inductorless Switching Regulator.
 

Offline edwardcurrentclamps

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Re: What's this please? (Component Advice)
« Reply #397 on: November 02, 2013, 03:26:42 am »
Hi!

Can someone confirm whether this is a quad positioning sensor or something else?

Appreciate all input!

Thanks
 

Offline SeanB

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Re: What's this please? (Component Advice)
« Reply #398 on: November 02, 2013, 05:38:13 pm »
Uncased 4 quadrant large area photodiode definitely.
 

Offline edwardcurrentclamps

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Re: What's this please? (Component Advice)
« Reply #399 on: November 03, 2013, 12:16:14 am »
Thanks,

any idea where I get something like that? I also wondered, how are you so sure. In what kind of application have you seen something like that before?

Thanks
 


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