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Help identifying SMD component

 
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damdin



Joined: 03 Jul 2009
Posts: 4

PostPosted: Sun Jul 05, 2009 1:06 pm    Post subject: Help identifying SMD component Reply with quote

There is a SMD component with letters ND and along with it number 46 written vertically. I've searched thoroughly but found nothing.
Can anyone tell what is it and if possible give the link to the datasheet?

Thanks in advance.
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jts1957



Joined: 24 Nov 2008
Posts: 2472
Location: Far, Far Away

PostPosted: Sun Jul 05, 2009 3:32 pm    Post subject: Reply with quote

2 contacts?, 3 contacts?
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damdin



Joined: 03 Jul 2009
Posts: 4

PostPosted: Sun Jul 05, 2009 3:55 pm    Post subject: Reply with quote

Thank you for attention!

There are 3 legs, SOT23 package. Sorry for not mentioning legs.
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jts1957



Joined: 24 Nov 2008
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PostPosted: Sun Jul 05, 2009 5:27 pm    Post subject: Reply with quote

What is the part out of? And to your best knowledge, what is the parts' "function?"
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damdin



Joined: 03 Jul 2009
Posts: 4

PostPosted: Tue Jul 07, 2009 2:45 pm    Post subject: Reply with quote

It's located on LCD TV 4 lamp inverter board. This inverter comes from www.szdatapower.com. Besides it there is also same component with PD letters and they both measure open for all directions. Though they are labeled Q3 and Q4 I think maybe they are not transistors at all.
If you can find me some information of these two.[/img]
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jts1957



Joined: 24 Nov 2008
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PostPosted: Tue Jul 07, 2009 3:44 pm    Post subject: Reply with quote

Have you checked the lamps themselves and done comparitive resistance readings on each inverter transformer?
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