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Old 26th May 2009, 08:08 AM   #1
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Default 2sa1016/2sc2362

Hi guys!

I was looking for excellent, neutral sound, TO-92 small signal transistors and after having looked around in the forum i came across this pair here.
Appereantly they are better than the classic Toshiba 2SC2240 and its complementary (I had a chance to use them in comparison with others and decided i didn't fully liked their character).

Anyways, i have the A1016/C2362 on my hand.
Consulting the datasheet it seems that these two are PNP/NPN respectively *BUT* after have ran a simple test (with the diode check and a simple transistor tester on these cheap multimiters) i found them to be both PNP!

Am I missing something or there is a problem with my parts (maybe fake?!)


Thank you guys for the attention.
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Old 26th May 2009, 08:13 AM   #2
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Post a pic, of the front.

They are good, but it also depends on the application, If its for phono, the toshibas are better.
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Old 26th May 2009, 10:38 AM   #3
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Hi, i will post a pic of the front later on as i don't have a camera with me right now.
They look normal to me though...meaning nothing wierd on the front...i guess...but they are both PNPs! (in case do you have a reliable source on Europe?)

The application in on a phono stage but not as active gain nor cascode but currently on a nackamici current mirror configuration's style driving an outputy diamond buffer stage.
I am sure that there is not much difference on that position, but i would like to have a more suitable transistor than the current BC557/547.

Do you have a better suggestion in case?

Thank you for the attention.
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Old 26th May 2009, 11:56 AM   #4
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They are good Japanese transistors.
Are you sure you did use correct PINS 1,2,3 .. when you did test?

.. 2SA =PNP goes in pair with .. 2SC =NPN

.. 2SB =PNP goes in pair with .. 2SD =NPN

for exampe, 2SA970 is the PNP for 2SC2240 NPN
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Old 26th May 2009, 12:51 PM   #5
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well...not sure, but i have followed the datasheet.

the pin out i have considering, facing the round face of the transistor (fron view) from left to the right is

| | |
B C E

i don't know if i am mistaken or not.

the 2SA2240 and 2SC970 are fine, pin out speaking.
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Old 26th May 2009, 11:41 PM   #6
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Hi ! Stefanoo

I use these Tr fo my amp and Volt Regu,and think these Tr are good,too.

the pin are both

| | |
E C B

datasheet sample is
http://www.audiolabga.com/pdf/2SA1016.pdf

P.S
I like 2SA1016K/2SC2362K ,they are hi voltage .


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Old 27th May 2009, 05:57 AM   #7
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We generally call out pins on TO92 transistors looking at the flat side.
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Old 27th May 2009, 06:43 AM   #8
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Flat side forward is how the devices are drawn on the datasheets, but non-techies in general have not been taught basic drawing rules.

Rotel has been designing with the duo for +15 years, the Sanyo devices might very well become obsolete in the near future, the moment they become trendy parts in the DIY scene.
Amusing.
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