What are these SMD drivers - UY 013, WY 017

[valterdaw]

These are drivers for power supply. Tried searching on http://www.tkb-4u.com/code/smdcode/indexsmdcode.php but no luck. Thanks!!!

 

[Perry Babin]

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?

 

[JoergST]

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

 

[Perry Babin]

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.

 

[valterdaw]

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

 

[valterdaw]

Just an update: replaced them with 2sd1898, 2sb1260... and... it works!!! Already beat a hell out of amp, and it still works Thanks, Perry!