Toshiba Output Transistors 2SA1095 vs 2SA1095A Differences?

[gklainer]

Need a few matched pairs 2SA1095A and 2SC2565A. I can't seem to find the "A" revision nor the datasheet for the "A". Are the 2SA1095 and 2SC2565 without the "A" revision the same transistors or are there slight differences? Thanks.

 

[EchoWars]

Usually, a suffix like that indicates a higher voltage part.

The A1095 is rated to 160V. What are they going into?

 

[gklainer]

Usually, a suffix like that indicates a higher voltage part.

The A1095 is rated to 160V. What are they going into?

Thanks Echowars. They are going into a Nikko Alpha 440.

 

[avionic]

BD Enterprise authorized SANKEN dist. Have MT-200 case style
Check out 2SC3264 and 2SA1295...
Digikey has them as well bout the same price.
http://www.bdent.com/catalogsearch/result/?q=2SA1295

http://www.semicon.sanken-ele.co.jp/sk_content/2sa1295_ds_en.pdf

 

[gklainer]

BD Enterprise authorized SANKEN dist. Have MT-200 case style
Check out 2SC3264 and 2SA1295...
Digikey has them as well bout the same price.
http://www.bdent.com/catalogsearch/result/?q=2SA1295

http://www.semicon.sanken-ele.co.jp/sk_content/2sa1295_ds_en.pdf

Thanks Avionic.

Anyone have the datasheet for the 2SA1095A? Still curious as to what is different with the "A" version. Thanks.

 

[EchoWars]

Post #2.

 

[sregor]

Do you have the service manual (I don't) Nikko always had complete specs on semiconductor components in their manuals. I checked the 220 manual, which has the 2SA1095 specs, not the -A.

 

[FootFungus]

Check Elektrotanya.com. They have a scan:

http://elektrotanya.com/nikko_alpha_440_sm.pdf/download.html

 

[gklainer]

Thanks everyone. Of course Echowars was right. The voltage for the "A" version is 180 vs. 160 for the non "A".

 

[gklainer]

Are the ratings conservative enough so that I could still use a 1095 instead of the 1095A?

 

[FootFungus]

The rails are 77v. You'd be cutting it pretty close on a part that's already been binned. Are you wanting to use pulls from something else? While you can get NOS parts, its a crapshoot whether they are real. You are better off going with the subs Avionic mentioned. Not as fast, but much sturdier and exceed the original's voltage specs.