[hpsdr] SMT LEDs Help

[Pat McGrath]

Thanks

On the Atlas board are all the LED cathode on the same side?

----- Original Message ----- 
From: "Graham / KE9H" <KE9H at austin.rr.com>
To: "Pat McGrath" <ka6tya at arrl.net>
Cc: <hpsdr at lists.openhpsdr.org>
Sent: Saturday, July 10, 2010 1:10 PM
Subject: Re: [hpsdr] SMT LEDs Help


> Pat:
> 
> Someone else sent you the data sheet.
> The marking is a green dot or bar on either side of one end of the part.
> 
> Please understand that the green dots actually mark the end of the part
> with the die.  On this RED LED, this happens to be the anode.
> 
> On the equivalent YELLOW and GREEN LEDs used by HPSDR,
> the green dot still marks the end with the die, which happens to be the 
> cathode.
> 
> :-)
> 
> --- Graham
> 
> ==
> 
> Pat McGrath wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> I need to identify the marked end for a LTST-C170CKT SMT LED.
>>
>> How do I know the madked end?  What should I be looking for?
>>
>> What is the best way to identify the Anode and the cathode ?
>>
>>
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>

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