What are these SMD drivers - UY 013, WY 017 - diyAudio
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Old 7th July 2006, 01:17 AM   #1
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Question What are these SMD drivers - UY 013, WY 017

These are drivers for power supply. Tried searching on http://www.tkb-4u.com/code/smdcode/indexsmdcode.php but no luck. Thanks!!!
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Old 7th July 2006, 03:47 AM   #2
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I couldn't find anything on them either. Are they SOT-23 case (like Rockford uses - MMBT3904) or are they the larger SOT-89 case?
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Old 7th July 2006, 07:05 AM   #3
JoergST is offline JoergST  Germany
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Default VRT ECA 2005

Hello I have looked into the ECA VRT 2005 list and find some things.Perhaps it could help you :-)

The UY 013 is a ZUMT 848 B and the WY 017 is a 2 SC 3915

I put you a picture from the ECA VRT 2005 Disk to this thread.

regards Jörg
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Old 7th July 2006, 12:12 PM   #4
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If the attached image is what you have, the following may work:

2sd1898 NPN, 80v, 1a

2sb1260 PNP, -80v, -1a

On a JL amp I have here it appears that the WY is the PNP but due to other parallel components, I couldn't confirm that with 100% certainty. Verify this on your amp.
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Old 7th July 2006, 03:52 PM   #5
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Thanks a lot guys! Ordering them right now. For a test purposes, replaced them with SOT-23's (PNP & NPN), and amp started working fine. Too bad they are dramatically less powerful. Will be waiting for a right part...
I really appreciate your help
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Old 12th July 2006, 05:12 AM   #6
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Just an update: replaced them with 2sd1898, 2sb1260... and... it works!!! Already beat a hell out of amp, and it still works Thanks, Perry!
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