Hello,
i have an issue with the dashboard of my old motorcycle : when i dismantled it, i noticed a burned/melted component. The ref is partially readable and i don’t know if it is a resistor or not.
All i can read is something like R?30 (weird symbol ‘R reversed stuck to U’) and 645 or 0645.
Its dimension is 9mm x 8mm x 3mm and it have 2 poles.
thank you for your help, this motorcycle part is discontinued and very hard to find.
Regards, François
Hello fabra59,
Welcome to the DigiKey TechForum.
The reverse R stuck to the U like that appears to be the UL logo for the UL Recognized products.
However, I’m not sure what the 0645 calls out, nor the 645. It could be a resistor like you assume but can you take a look at the board where it was removed from? Is there some kind of mark on the board where it was, or is there another part that looks similar on the same board? That might help us investigate further. Feel free to submit the picture of the PCB this was on.
Regards,
hi, thanks for your answer.
Here is the picture of the board : no marks on it
i asked the manufacturer of the part (M.A.E electronica) : they don’t want to give me some answer, because of copyright reasons ….
Googling about my issue, i noticed that a lot of ‘bikers’ have the same problem with this electronic dashboard (peugeot, rieju, yamaha)
Regards
Me again : could it be a varistor used as a fuse to protect the board from surtensions ? The motorbike is 12V alternative current , so the varistance should trigger at 14V or 15V.
What component could be used as an alternative to my burned component ? I am looking for a 15V alternative varistor
Thanks
Hello fabra59,
Are you able to post another picture, and show the markings above the 30 RU? The first picture appears to have markings there, but they are expanded, and on too much of an angle.
That may be the part number. Also, did anyone else having trouble with the board, and a good picture of that part?
My bad : it is not ‘R30’ but ‘K30’ written on the component.
I really starts to think it is a varistor 30 volts to protect the board.
Kind of 4032 K30 ?
That marking indicates your part is manufactured by Epcos-TDK.
30 after K30 likely indicates you have a 30Vrms rated varistor.
If your varistor body is around 10mm x 8mm I’d be looking at the following part as a possible replacement:
B72660M1300K072 EPCOS - TDK Electronics | Circuit Protection | DigiKey
