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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Posted to sci.electronics.components,sci.electronics.design,sci.electronics.repair,alt.engineering.electrical
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What cap mfr. to use?
Today I ordered electrolytic caps. It was frustrating. I had planned to get
the best low-ESR replacements for all the caps in some switching power supplies. I discovered how limited any one manufacturer's low-ESR catalog is. Many of what I needed (none of which seem to me to be esoteric values) were not available. A couple of times I had to leave a particular manufacturer's catalog altogether to find a value. Which brings me to my question. I was trying to get all Panasonic FM-series (hi-temp, low-ESR) caps. I've heard good things about Panasonic's caps, but being forced to another brand I has no idea of comparable quality. (This, at Digi-Key and Mouser.) Also, How important is the type of electrolyte? I've read that low-ESR caps are frequently made with water-based electrolyte whereas non-water-based formulae cannot give low ESR value. The qualities of caps (ie, hi-ripple, hi-temp, low-ESR, etc.) are frequently discussed on electronics forum, but I haven't seen the different manufacturers compared. How do the quality of caps compare by Nichicon Panasonic Vishay / Sprague Mallory Rubycon United Chemi-Con Cornell Dublier Xicon Feel free to add to the list, praise, trash, and/or list in order of your preference. Extra credit for essays on why you like / hate / prefer a brand or series of caps. Thanks, -- DaveC This is an invalid return address Please reply in the news group |