Post by Deleted on Apr 14, 2014 1:02:36 GMT
WARNING for Aussies.
Do NOT purchase Suntan brand electrolytic capacitors as supplied by Jaycar in it's stores. They are presently still causing me continuing problems due to domed tops after a period of use, and need replacing. A few months back I purchased a few more from Jaycay's HQ store, and when the sales assistant plonked them down on the counter on their ends while checking the catalogue number, one fell over. Although new from the parts bin, it already had a domed top and showed signs of leakage. That weekend I found that 3 unused Suntan electros in my own collection also had domed tops. I sent a photo of them to the Editor of Silicon Chip magazine and he forwarded my email to Jaycar.
At my next visit to Jaycar HQ store I handed them in to their staff. Yesterday I found another Suntan with a domed top in the PSU for my X-DAC V3, and a little later a Suntan 2,200uF 25V in my X-DAC V3 with a prominent domed top too.
It appears that these were from batches made by several (10 or more ?) manufacturers a while back using a pirated electrolyte formula that caused excess Hydrogen gas. Lelon brand as supplied by Altronics was named in a list of manufacturers (Google) that were caught out with this incomplete electrolyte formula at the time, as were the manufacturers of many PC Motherboards who used the pirated formula capacitors.
Recent Lelon capacitors from Altronics are likely to be O.K. though.
I have received no feedback from Jaycar, although there is an advertisement on behalf of Jaycar in the rear of the latest Silicon Chip magazine for a person responsible for sorting out such problems among his/her other duties. Also, if anyone purchases ON brand 7805s from Jaycar, check that the voltage output is within specifications after installation. I found 2 that were much higher than their specified output voltages and gave them to Jaycar to follow up on. No feedback there either.