What's this please? (Component Advice) - Page 1
Forum section: electronics / general

author: orbiter
author_rank: Frequent Contributor
timestamp: March 06, 2011, 12:21:48 pm
content: 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

author: cybergibbons
author_rank: Frequent Contributor
timestamp: March 06, 2011, 12:32:30 pm
content: Looks like an IR remote receiver.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: March 06, 2011, 12:32:51 pm
content: 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

author: orbiter
author_rank: Frequent Contributor
timestamp: March 06, 2011, 12:39:45 pm
content: Ah ok, thanks guys. That gives me something to go on.Cheersorb

author: Sionyn
author_rank: Frequent Contributor
timestamp: March 06, 2011, 03:58:53 pm
content: IR

author: Mechatrommer
author_rank: Super Contributor
timestamp: March 06, 2011, 03:59:14 pm
content: Quote from: orbiter on March 06, 2011, 12:21:48 pmi agree, and it should be made sticky. how about this thread? just suggestion.

author: armandas
author_rank: Frequent Contributor
timestamp: March 06, 2011, 11:16:38 pm
content: 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.

author: dengorius
author_rank: Regular Contributor
timestamp: March 07, 2011, 02:09:00 am
content: It looks like some kind of thermistor to me, maybe a NTC? Have you tried to measure its resistance

author: Hypernova
author_rank: Unknown
timestamp: March 07, 2011, 06:20:11 am
content: At that size probably a NTC thermister for inrush current protection.

author: ElektroQuark
author_rank: Unknown
timestamp: March 07, 2011, 07:52:19 am
content: Semitec 10D210 Thermistor, NTC, 10 Ohm, 3A

author: armandas
author_rank: Frequent Contributor
timestamp: March 07, 2011, 08:50:33 am
content: Nice one, guys. It is indeed an NTC, measures about 12R when cold. Thanks!

author: orbiter
author_rank: Frequent Contributor
timestamp: March 09, 2011, 05:00:34 pm
content: Any chance of the 'What's this please?' sticky thread.. please mods?

author: Simon
author_rank: Unknown
timestamp: March 09, 2011, 07:32:29 pm
content: 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"

author: orbiter
author_rank: Frequent Contributor
timestamp: March 09, 2011, 07:55:36 pm
content: Great. Thanks Simon

author: NiHaoMike
author_rank: Super Contributor
timestamp: March 10, 2011, 08:31:28 pm
content: 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?

author: Time
author_rank: Frequent Contributor
timestamp: March 10, 2011, 10:38:32 pm
content: Quote from: NiHaoMike on March 10, 2011, 08:31:28 pmMy guess would be to minimize the overall field of the inductor since a CRT is sensitive to B fields.

author: david77
author_rank: Frequent Contributor
timestamp: March 10, 2011, 10:59:22 pm
content: 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.

author: jahonen
author_rank: Super Contributor
timestamp: March 11, 2011, 08:05:01 am
content: Quote from: Time on March 10, 2011, 10:38:32 pmI think it is horizontal linearity or "s-correction" coil.Regards,Janne

author: apex
author_rank: Regular Contributor
timestamp: March 12, 2011, 01:21:59 pm
content: @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!apex

author: Zero999
author_rank: Super Contributor
timestamp: March 12, 2011, 05:27:23 pm
content: Quote from: NiHaoMike on March 10, 2011, 08:31:28 pmYes, 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.

author: Mechatrommer
author_rank: Super Contributor
timestamp: March 15, 2011, 04:44:08 pm
content: 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?

author: NiHaoMike
author_rank: Super Contributor
timestamp: March 15, 2011, 05:02:51 pm
content: First one is a resistor.Second one is indeed a capacitor.Third one is a NTC.

author: Mechatrommer
author_rank: Super Contributor
timestamp: March 15, 2011, 05:09:49 pm
content: thanx. but why the unit is ohmJ? and my question about the yellow rectangle plastic?

author: Simon
author_rank: Unknown
timestamp: March 15, 2011, 05:24:05 pm
content: I think "J" is an abreviation of tolerance, 5% I think

author: Fryguy
author_rank: Regular Contributor
timestamp: March 15, 2011, 05:51:08 pm
content: 1) it's a simple 0,1 ohm 5W resistor - just ignore the J - i always do2) 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 .