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Topic: unknown parts (Read 509 times) previous topic - next topic


i'm new here.
i have some parts that i don't know what are they and what are they doing.
can anybody help me?

here is a picture of them:


#1 is just white, but I'm guessing capacitor
#2 is a transistor of some sort - the marking will tell you what - may even be a voltage regulator
#3 looks like an electric hot cross bun
#4 is capacitors
#5 is an LED (possibly IR)

there are only 10 types of people
them that understands binary
and them that doesn't


#3 is a 38KHz IR receiver.

--> WA7EMS <--
"The solution of every problem is another problem." -Johann Wolfgang von Goethe
I do answer technical questions PM'd to me with whatever is in my clipboard


#1 not sure - need a better photo.
#2 LM35 temperature sensor (can just resolve the lettering)
#4 Almost certainly electrolytic capacitors, but we can't see the relevant info on can - just the manufacturer's logo
#5 Probably IR LED (possibly a photo-diode or photo-transistor)
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]

Nick Gammon

Judging by the marking #2 is a LM35 temperature sensor.

I agree with Docedison, I've got an IR receiver like that, which means #5 is probably an IR transmitter LED.

#1 looks a bit like a LDR (light dependent resistor). Is it flat inside with a squiggly line like this?

Please post technical questions on the forum, not by personal message. Thanks!

More info:


Thank you guys!
Nick the sensor looks like this,i belleve it is LDR as you said.
Thanks again!

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