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???
09/05/10 05:12
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 		 #178447 - photo
Responding to: ???'s previous message
Hello Andy, thanks for your answer.

Yes Andy! Lots of hits! I know!
But when you try to get the datasheet is a deception!
for example:
first link, no exactly LM78H05K in the list
second link, many LM78H05K, but when try to download, only LM78 datasheet avaible.

Follows a photo of the IC:

There is that "nifty" N... this means National?
(I dont know the manufacturers logo, just some like Fairchild, Atmel...)

I will try for 78H05 if you think it is enough.

You is right, my fault, I should have asked the datasheet before buying it, never had this problem before and was to excited in the moment, so bought it anyway... I have made a test using the pinout of the datasheets I got, they are very nice regulators anyway... for sure I have not thrown money away!

Thank you again.

List of 21 messages in thread
TopicAuthorDate
LM78H05K Datasheet really exists?            01/01/70 00:00      
   Searching for Datasheets            01/01/70 00:00      
      photo            01/01/70 00:00      
         Yes, that's National Semiconductor            01/01/70 00:00      
            You are right again...            01/01/70 00:00      
               I think the "H" may be because it is 5A isnt it?            01/01/70 00:00      
                  from the days of burning your fingers            01/01/70 00:00      
                      I fail to see a modern design needing that amount...            01/01/70 00:00      
                        qualify            01/01/70 00:00      
                           Still need for power - but varying voltages and low loss            01/01/70 00:00      
                           12V the big favourite in a PC            01/01/70 00:00      
                     Killed off by switchers            01/01/70 00:00      
                        The heat was always a challenge with high-power linears            01/01/70 00:00      
                  Disapointed but clear.            01/01/70 00:00      
                     How so?            01/01/70 00:00      
                     You can make your own ...            01/01/70 00:00      
                        re: You can make your own            01/01/70 00:00      
                           Yes, they did, and those sheets were excellent!            01/01/70 00:00      
   the first mistake            01/01/70 00:00      
   Fairchild was the original manufacturer            01/01/70 00:00      
   these parts are hybrids ... so you can synthesize them            01/01/70 00:00      

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