Quote:
Originally Posted by Pdelcast
Fair enough ...
There is 100uf of output capacitance on the switcher -- ceramics, not electrolytics or tantalum. The input capacitance is 44uF of ceramic, right on the FET inputs, in addition to the approx 1000uf of electrolytic. Fets are snubbed.
As for the capacitor quality -- We've been using Rubycon and Panasonic both for many many years, and have never had a quality problem with either one. Rubycons are usually more difficult to get. The Panasonics usually have shorter lead time, and are more available -- but in this case we had the Rubycons available and Panasonic needed 12 weeks.
In our testing, the Rubycons ran a little cooler than the same value Panasonic FM series.
I'm not sure what you mean by "if you can't request seconds" -- we could, but we don't request seconds. I'm just saying that there isn't any possibility of us getting seconds or rejects -- we don't buy through brokers.
Patrick
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I know a few brokers who buys from the factories just like many of the top factories, ems and odm out there. We brokers also have the upper hand when dealing with shortages and long lead time and I can tell you that Hon Hai (Foxconn), Flextronics, Elcoteq, Jabil, Benchmark, Videoton, Bosch, Philips, Sony and many others are glad that I'm around to help them. Most authorized distributors don't like how the brokers get the prices to actually win a company over. I even sold to a few authorized disti.
Edit: Forgot to mention every electronic components that I sell are factory sealed.
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