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Reviews (9)
Sep 07, 2016
Suffers from common 0.1uf cap problem - not within tolerance
1 of 1 found this helpful So here's the deal: I routinely test all the components I use, and I found that the capacitance of the 0.1uf caps I had on hand was much too low. And by "too low" I don't mean 10% (0.09uf) or even 20% (0.08uf) - we're talking 35% (0.065uf) and many cases even lower. (It makes me wonder if these aren't mislabeled 683s.)
These tests were done with two independent meters and were absolutely consistent, as were comparisons with reference capacitors. So I'm fairly confident of my results,.
I ordered these as replacements because the price was very reasonable, hoping for something better, but alas, did not get it - these are the exactly the same as what I had: Orange disks, smaller and darker than what's shown in the stock photo, with the same problem. A problem, incidentally, that only affects the 0.1uf units - the other similar caps I have in 0.068uf, 0.05uf, etc. are all within 15% of rated value, and are not consistently on the low side of their rated value either.
These caps are almost certainly OK for random noise filter caps designers scatter across boards, which is far and away their most common use. However, that's not the only thing these caps are used for in the stuff I build. And I don't have time to track down every one of these in a complex design and figure out what it's being used for.
I ended up ordering a few hundred brand name (Vishay) of them from a major supplier. They cost considerably more but all the ones I tested were well within 5% of rated value.
tl;dr These are fine for their primary applications as on-board noise filters, but there could be issues using them for other purposes.
Jan 30, 2021
Works fine
Replaced a couple of existing aerators that had gotten clogged. These worked without any issues.
Oct 24, 2019
Works better than the original controller
Nice that it came with a battery. The directions were clear, and opening it to set the switches was trivial. Once set up, it has better range than the original.