Author Topic: What's this please? (Component Advice)  (Read 381143 times)

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Offline orbiter

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What's this please? (Component Advice)
« on: March 06, 2011, 12:21:48 pm »
Hi fellas,

First off... Anybody think it might be a good thing to have a 'What's This Please..' as a sticky thread, and if so, could we have one please? Only because I've seen a few people (including myself) needing to know what particular parts are.

Ok now to my question.. What's This please.. :) I'm assuming it's some sort of photodiode or something, but I've had a quick search on around on the datasheet sites looking for the displayed numbers, but I can't see anything that matches.





Thanks guys
« Last Edit: March 09, 2011, 08:04:21 pm by orbiter »
 
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Offline cybergibbons

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Re: What's this please?
« Reply #1 on: March 06, 2011, 12:32:30 pm »
Looks like an IR remote receiver.
 

Online mikeselectricstuff

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Re: What's this please?
« Reply #2 on: March 06, 2011, 12:32:51 pm »
It's an infra-red receiver for remote controls, by Sharp I think. It demodulates the 36-ish khz carrier to give an easily decoded datastream. There are many simiular devices (e.g. Vishay TSOP range), sho shouldn;t be hard to find data
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Offline orbiter

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Re: What's this please?
« Reply #3 on: March 06, 2011, 12:39:45 pm »
Ah ok, thanks guys. That gives me something to go on.

Cheers

orb

Offline Sionyn

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Re: What's this please?
« Reply #4 on: March 06, 2011, 03:58:53 pm »
IR
eecs guy
 

Offline Mechatrommer

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Re: What's this please?
« Reply #5 on: March 06, 2011, 03:59:14 pm »
First off... Anybody think it might be a good thing to have a 'What's This..' thread, and if so, could we have one please?
i agree, and it should be made sticky. how about this thread? just suggestion.
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 

Offline armandas

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Re: What's this please?
« Reply #6 on: March 06, 2011, 11:16:38 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.
« Last Edit: March 06, 2011, 11:23:56 pm by armandas »
 

Offline dengorius

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Re: What's this please?
« Reply #7 on: March 07, 2011, 02:09:00 am »
It looks like some kind of thermistor to me, maybe a NTC? Have you tried to measure its resistance
 

Offline Hypernova

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Re: What's this please?
« Reply #8 on: March 07, 2011, 06:20:11 am »
At that size probably a NTC thermister for inrush current protection.
« Last Edit: March 07, 2011, 06:30:18 am by Hypernova »
 

Offline ElektroQuark

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Re: What's this please?
« Reply #9 on: March 07, 2011, 07:52:19 am »
Semitec 10D210 Thermistor, NTC, 10 Ohm, 3A

Offline armandas

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Re: What's this please?
« Reply #10 on: March 07, 2011, 08:50:33 am »
Nice one, guys. It is indeed an NTC, measures about 12R when cold. Thanks!
 

Offline orbiter

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Re: What's this please?
« Reply #11 on: March 09, 2011, 05:00:34 pm »
Any chance of the 'What's this please?' sticky thread.. please mods?

Offline Simon

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Re: What's this please?
« Reply #12 on: March 09, 2011, 07:32:29 pm »
There you go it is now a sticky. It will eventually become a very long topic though but I expect something to trwl through when you have an "unknown" and "some time"
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Offline orbiter

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Re: What's this please?
« Reply #13 on: March 09, 2011, 07:55:36 pm »
Great. Thanks Simon :)

Offline NiHaoMike

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Re: What's this please? (Component Advice)
« Reply #14 on: March 10, 2011, 08:31:28 pm »
In every CRT monitor or TV I have taken apart, there was this odd inductor that has a permanent magnet glued to it. Is that to offset the magnetic field generated by a DC bias current so a cheaper core can be used?
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Offline Time

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Re: What's this please? (Component Advice)
« Reply #15 on: March 10, 2011, 10:38:32 pm »
In every CRT monitor or TV I have taken apart, there was this odd inductor that has a permanent magnet glued to it. Is that to offset the magnetic field generated by a DC bias current so a cheaper core can be used?

My guess would be to minimize the overall field of the inductor since a CRT is sensitive to B fields.
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Offline david77

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Re: What's this please? (Component Advice)
« Reply #16 on: March 10, 2011, 10:59:22 pm »
I've also got something I'm seeking information on. I'm pretty sure I know what they are but I'd be interested in some more info on these op amps.



 

Offline jahonen

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Re: What's this please? (Component Advice)
« Reply #17 on: March 11, 2011, 08:05:01 am »
In every CRT monitor or TV I have taken apart, there was this odd inductor that has a permanent magnet glued to it. Is that to offset the magnetic field generated by a DC bias current so a cheaper core can be used?

My guess would be to minimize the overall field of the inductor since a CRT is sensitive to B fields.

I think it is horizontal linearity or "s-correction" coil.

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Offline apex

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Re: What's this please? (Component Advice)
« Reply #18 on: March 12, 2011, 01:21:59 pm »
@david77:
They look like early operational amplifiers.
The function on the pins is printed on it, so why don't give it a try and see if it works?
Don't expect too much amplification factor!

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Online Zero999

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Re: What's this please? (Component Advice)
« Reply #19 on: March 12, 2011, 05:27:23 pm »
In every CRT monitor or TV I have taken apart, there was this odd inductor that has a permanent magnet glued to it. Is that to offset the magnetic field generated by a DC bias current so a cheaper core can be used?
Yes, that's what it's for, the permanent magnet biases the inductor to oppose the DC current so a smaller, cheaper core can be used.
 

Offline Mechatrommer

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Re: What's this please? (Component Advice)
« Reply #20 on: March 15, 2011, 04:44:08 pm »
pls help!

1) white (ceramic like) rectangle with 5W0.1ohmJ on it?
2) yellow (plastic like) rectangle with .1uF (K) X2 etc etc on it? if its capacitor, what type and why its yellow plastic rectangle?
3) the green round coin shape with DN R, 20 D471K on it, polyswitch right? the NTC?
« Last Edit: March 15, 2011, 04:46:54 pm by Mechatrommer »
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 

Offline NiHaoMike

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Re: What's this please? (Component Advice)
« Reply #21 on: March 15, 2011, 05:02:51 pm »
First one is a resistor.
Second one is indeed a capacitor.
Third one is a NTC.
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Offline Mechatrommer

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Re: What's this please? (Component Advice)
« Reply #22 on: March 15, 2011, 05:09:49 pm »
thanx. but why the unit is ohmJ? and my question about the yellow rectangle plastic?
if something can select, how cant it be intelligent? if something is intelligent, how cant it exist?
 

Offline Simon

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Re: What's this please? (Component Advice)
« Reply #23 on: March 15, 2011, 05:24:05 pm »
I think "J" is an abreviation of tolerance, 5% I think
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Offline Fryguy

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Re: What's this please? (Component Advice)
« Reply #24 on: March 15, 2011, 05:51:08 pm »
1) it's a simple 0,1 ohm 5W resistor - just ignore the J - i always do  ;)

2) is a X2-class 0,1µF mains filter capacitor - a flat foil capacitor in a yellow plastic block body - that's just the way it is - an X2 is designed to withstand a voltage peak of 2500V and it won't burn in case of an overload .

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