SMPS repair - Need Sanken STRT-G6153

[GS3]

I am repairing a SMPS which uses a Sanken STRT-G6153 IC for which I can find no replacement or datasheet. It is a SMPS control circuit which includes the switching FET and is TO220 with 5 pins. If possible I would like to find a replacement or equivalent but this is proving impossible so far.

Another option would be to modify the circuit so as to use a more common control IC and a discrete FET but this would be time consuming to develop, test and implement.

I am attaching the schematic of the main part of the SMPS showing the internals of the G6153. I have not included the secondary part of the PS as it is working fine and just has a bunch of different voltages.

All help and advice welcome.

http://files.engineering.com/getfil...0-4d4b-9fa4-5ac96cf48b68&file=STRT-G6153-.png

 

[VEBill]

When I Googled the P/N it led to the following hits:

Same topic from you on another forum:

http://forum.allaboutcircuits.com/showthread.php?p=45598

"that device is manufactured by SANKEN and bluewater component carries it and plenty available."

As suggested:

http://www.bluewatercomponents.com/Home_Page.html

Paste in: STRT-G6153

http://www.icsource.com/icsourcewdl/icswdl.aspx?user=bluewtr&part=STRT-G6153&Submit1=Start+Search

As was posted, plenty available.

Did you get a quote for the original part?

 

[GS3]

VE1BLL, thanks. I did not receive a reply the first time around so I have tried again. Maybe they are just not interested in selling a single unit. Still, I have tried again.