Popular transistor data in spreadsheet format?

[JW]

On Thu, 10 Jul 2014 10:30:25 +0000 (UTC) "Geoffrey S. Mendelson"
<gsm@mendelson.com> wrote in Message id:
<slrnlrsqft.pa5.gsm@cable.mendelson.com>:

Michael A. Terrell wrote:

Do you really need 1A? The 78L09 is good to 100 mA, and is a lot
smaller.


Thanks, 100ma is a lot closer to what I need, does it shut down or current
limit when it is overloaded like the larger version, or is it damaged.

It's on the first page of the datasheet.
http://www.fairchildsemi.com/ds/KA/KA78L09A.pdf

 

[Michael A. Terrell]

"Geoffrey S. Mendelson" wrote:

Michael A. Terrell wrote:

Do you really need 1A? The 78L09 is good to 100 mA, and is a lot
smaller.


Thanks, 100ma is a lot closer to what I need, does it shut down or current
limit when it is overloaded like the larger version, or is it damaged.

All 78** and 79** series shut down, if they aren't fakes.

When the transistor goes into oscilation it draws a lot of current and
the idea is to prevent it from burning out other parts.

Or causing a lot of RFI?

I bought the larger ones because they are more useful to me, and I have
a 4 to 6 week lead time from China. 2-3 week lead time from the UK, but
usually twice the price.

I bought 1000 78L05 surplus a few years ago. Two resistors let me set
the output to higher voltages, and the were only 3 cents each.

--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

 

[Michael Black]

On Thu, 10 Jul 2014, Michael A. Terrell wrote:

"Geoffrey S. Mendelson" wrote:

Michael A. Terrell wrote:

Do you really need 1A? The 78L09 is good to 100 mA, and is a lot
smaller.


Thanks, 100ma is a lot closer to what I need, does it shut down or current
limit when it is overloaded like the larger version, or is it damaged.


All 78** and 79** series shut down, if they aren't fakes.

Do they use the same die, the low current ones and the 1amp ones?

At least proper numbering won out. I remember when they were LM309s and
LM340-X, and then if you didn't want to-3 packages, they had 78XX. Then
they standardized on the 78XX and 79XX so you could so easily tell what it
was, and what voltage.

I even have some odd ones bought surplus, some voltage and a fraction.
prsumably because someone needed it in enough quantity that it was worth a
custom run.

Michael