Transistor Substitutions

[Diamond Dave]

I believe the KSC 1815 is more durable and higher spec... compared to the KSC1845...at least in accord to the posts here...you may consider verifying spec.

 

[itguy1010]

I went with the 1815 also based on other posts. Thanks for the reply.

BTW... Go Lions! (And the Wolverines!!!)

 

[Willarado]

Does anyone know a replacement for a Hitachi 2SC317?

 

[rcs16]

ksc1815y is equivalent based on the limited info on 2sc817, check/verify pinouts

 

[Dutch9600]

Looking for a substitute RN2209, anyone got anything that will work? Thanks for any and all help in advance.

 

[rwwear]

https://www.chip1stop.com/USA/en/view/dispDetail/DispDetail?partId=TOSH-0089507&cid=octopart_TOSH-0089507

 

[tarior]

Looking for a substitute RN2209, anyone got anything that will work? Thanks for any and all help in advance.

The surface mount version(RN2109) is available from Mouser. You can probably source a breakout board and make it work if you have the skillz.

 

[RVT1K]

Rebuilding an Adcom GFA555 II and am looking for currently available equivalents to:

Q201/Q251 - 2SC2912
Q301/Q351-2SA1210

Thanks in advance

 

[rcs16]

If the originals are functional, I’d leave them installed but if not use Ksc3503, ksa1381

 

[RVT1K]

Ksc3503, ksa1381

HOLY SMOKES!! That was fast.

Thank you.

 

[Dutch9600]

Looking for a substitute 2sb649a and 2sd669a and was wondering will ksa1381, ksc3503 work. They are going in a NAD3225pe in positions Q413, Q414, Q411 and Q412. Thanks for any and all help in advance.

 

[rottalpha]

Looking for a substitute 2sb649a and 2sd669a and was wondering will ksa1381, ksc3503 work. They are going in a NAD3225pe in positions Q413, Q414, Q411 and Q412. Thanks for any and all help in advance.

no

try Toshiba TTC004/TTA004

https://www.mouser.com/ProductDetail/Toshiba/TTC004BQ?qs=Mv7BduZupUgP0%2FeZ2DvzIw%3D%3D

https://www.mouser.com/ProductDetail/Toshiba/TTA004BQ?qs=Mv7BduZupUjGQix8c1RZeA%3D%3D

 

[A400]

Hi, I'm trying to source replacement MOSFET drivers and outputs for a Sony TA-FA3ES. I can source the subs below but would appreciate confirmation these are ok or any alternative suggestions.

2SK2013 -> IRF610PBF
2SJ313 -> IRF9610PBF
2SK1530 -> IRFP240PBF
2SJ201 -> IRFP9240PBF

 

[philster]

KSA1142 & KSC2682 in TO-126 case

No longer available, go with MJE15034 and 35

 

[mahasitavati]

Found this https://masterelectronicsrepair.blogspot.com/search?q=TABLE+OF+2SA+SERIES+TRANSISTOR+EQUIVALENTS+

Just change the SA to SB, SC, or SD for more.

 

[jefferylhenr]

Looking for a substitution for the 2sc1815 BL gain version. Tried the ksc1815 GR but it’s still not quite enough

https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/306/2SC1815-x.pdf

 

[jefferylhenr]

Looking for a substitution for the 2sc1815 BL gain version. Tried the ksc1815 GR but it’s still not quite enough

https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/306/2SC1815-x.pdf

 

[raycarr00]

Transistor Substitutions

I am not sure if there is another list like this on the forum or for that matter how many more there are, but I thought I would share this one. I stumbled on it while searching for trannies replacements. First I want to thank Mike from Hudson Valley HI FI for posting this on his site (no...

audiokarma.org

 

[The Fuxtor]

View attachment 3292100

I'm not 100 % sure, but look into the SMD version of that transistor? They have higher gain versions.
Just realized that's not an 1845. I don't know if there is an 1815 SMD?

 

[jefferylhenr]

I'm not 100 % sure, but look into the SMD version of that transistor? They have higher gain versions.
Just realized that's not an 1845. I don't know if there is an 1815

I'm not 100 % sure, but look into the SMD version of that transistor? They have higher gain versions.
Just realized that's not an 1845. I don't know if there is an 1815 SMD?

Yes, I could probably make an SMD work. Just need some ideas on where to start looking. No familiarity with SMD versions. I have tried a BC546 which spec wise should work, but no love.