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Electronics => Repair => Topic started by: innkeeper on December 20, 2019, 07:21:43 pm

Title: 2sd323 transistor information
Post by: innkeeper on December 20, 2019, 07:21:43 pm

I am looking for the data sheet for a 2sd323

been searching all the internet resources and can only find basic electrical characteristics, and, they really don't agree with each other and none are official data sheets

I know NEC made them and I have some labeled sony, not sure if sony made them or maybe NEC made them for Sony.

I'm particularly interested in the HFE vs Current graph .. thanks for any help :)

Title: Re: 2sd323 transistor information
Post by: T3sl4co1l on December 21, 2019, 01:37:18 am

Also could be BD323, often the B is left off.  That would be a TO-39 instead of a TO-3.

Why do you need the hFE(Ic) curve specifically?

Tim

Title: Re: 2sd323 transistor information
Post by: innkeeper on December 21, 2019, 05:32:40 am

I'm looking at an old amplifier design.  looking to see if the transistor used caused any significant compression.
its typical for lower hfe at higher currents but where it starts to drop and by how much makes a big difference.
i learn a lot from seeing what engineers had in mind as they designed things.
i'm trying to avoid needing to characterizing the transistor to find out.

i'll search for a bd323 too.. see if i come up with anything

Title: Re: 2sd323 transistor information
Post by: innkeeper on December 21, 2019, 05:41:42 am

found the bd323 spec... it's definaly not a bd323 which is a 1a ic

its a TO-3 @ 7A IC

Title: Re: 2sd323 transistor information
Post by: magic on December 21, 2019, 12:19:18 pm

Maybe you would have luck finding complete databook of the manufacturer from appropriate year. Some people scan and upload those things.

Title: Re: 2sd323 transistor information
Post by: innkeeper on December 21, 2019, 05:00:14 pm

i've started down that road, hoping to find a manual scan or hard copy. So far no luck, though they have to exists.
think a lot of them were in Japanese at the time. this is circa 1973. id be happy to find one even in Japanese.

Title: Re: 2sd323 transistor information
Post by: fastguido on December 22, 2019, 10:51:54 pm

I have some specs that are listed in my 1988 Japanese transistor manual, but there is no graphs.

Title: Re: 2sd323 transistor information
Post by: innkeeper on December 23, 2019, 07:33:57 pm

not sure if its the same info
here is a Japanese data manual Fromm 1981 i found
if it is any different please post, thanks

Title: Re: 2sd323 transistor information
Post by: Pete66 on December 23, 2019, 07:58:21 pm

Here you can find datasheet and a cross reference
https://alltransistors.com/transistor.php?transistor=19385 (https://alltransistors.com/transistor.php?transistor=19385)

Title: Re: 2sd323 transistor information
Post by: fastguido on December 23, 2019, 09:31:07 pm

Quote from: innkeeper on December 23, 2019, 07:33:57 pm

not sure if its the same info
here is a Japanese data manual Fromm 1981 i found
if it is any different please post, thanks

Looks the same.

Title: Re: 2sd323 transistor information
Post by: innkeeper on December 26, 2019, 03:49:53 am

Quote from: Pete66 on December 23, 2019, 07:58:21 pm

Here you can find datasheet and a cross reference
https://alltransistors.com/transistor.php?transistor=19385 (https://alltransistors.com/transistor.php?transistor=19385)

hi Pete, I did see that one, unfortunately, none of the pdf's they link to are for the 2sd323 and half of text-based specs do not agree with the Japanese sheet.
thanks though, I appreciate you pointing it out.

I may have to blow the dust off the curve tracer.