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WTB Sanyo 2SA1381E

Wanted to buy
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birdbox

birdbox

Member
Joined 2014
Looking for a couple dozen 2sa1381e.

I ended up buying 200qty 2SC3503E and some KSA1381ESTU only to realize they actually don't match well.

If anyone has 2sa1381e they are willing to sell I'd be interested in buying some so I can do some matching with the 2sc3503e that I currently have.

Thank you!
 
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bango

Member
Joined 2007
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Hi Dan, found them at a local store in my city, but they're expensive @$2 ea 😣

Screenshot_20240525-101829~2.png
 
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birdbox

birdbox

Member
Joined 2014
Thank you @bango for your input!!!

Can anyone provide relatively firm knowledge on adequate replacements for 2sa1381e/2sc3503e replacements? I've found a post indicating TTA004/TTC004 parts may be a good replacement.

https://www.diyaudio.com/community/...he-wolverine-build-thread.385920/post-7212415


Here is the post indicating KSA/2SC parts don't match well, and sent me down the road hunting for 2sa1381e parts.

https://www.diyaudio.com/community/threads/sx-amp-and-nx-amp.236522/post-7157808

I suppose the other option is to seek out KSC1381ESTU parts to match the KSA1381ESTU that are still available on Mouser (also very difficult to find). Some folks have indicated that KSC1381DSTU will still match fine even though the hfe is a mismatch with the ESTU grade.

I just wanted to share how I got into this kenundrum in the first place buying KSA/2SC parts with the intent of matching them.

Thank you to all who have provided their input!!! I have lots to learn and want to be sure I share what I learn from you all.
 
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bango

Member
Joined 2007
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Hi Dan, no worries!

birdbox said:
Can anyone provide relatively firm knowledge on adequate replacements for 2sa1381e/2sc3503e replacements?
Click to expand...

If you're talking about ones still in production, it seems like there aren’t any. cmiiw

Here are some good alternatives (if you can find them, since they’re all obsolete)

  • 2SA1407 - 2SC3601
  • 2SA1540 - 2SC3955
  • 2SA1480 - 2SC3790
  • 2SA1478 - 2SC3788
  • 2SA1209/1210 - 2SC2911/2912
  • BF469/471 - BF470/472

birdbox said:
TTA004/TTC004 parts may be a good replacement.
Click to expand...

TTA/TTC004 are less ideal as VAS due to their higher Cob..IMO

Maybe others can chime in with more suggestions.

Thanks
 
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