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Old 23rd October 2011, 04:09 AM   #1
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Default Need advice on replacing power supply caps

I have a Lanzar 50C and one of the supply caps has a broken leg. it is a Nichicon
10k UF CE series LQ (M) I found the original part number LLQ1E103MESA but they seem to be obsolete. This number LLS1E103MELA seems to have the same data sheet. Question is should I replace all 8 or just the 4 on the broken side.
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Old 23rd October 2011, 04:17 AM   #2
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Depends on the age of the unit compared to the expected life off the datasheet. I've found 1000 hour caps go bad in about 11-12 years home use. Nichicon has some caps up to 8000 hours expected life. You could also measure the ESD , but the meter that can do that is about $150.
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Old 23rd October 2011, 11:14 AM   #3
AndrewT is offline AndrewT  Scotland
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How warm does the inside of the chassis get during a typical year of use?

If it's above 40degC regularly, then consider fitting higher temperature rated capacitors. 105degC instead of 85degC.

The most important rating for an electrolytic capacitor is it's voltage rating.

Next, are all choices:- uF, degC, ESR, ripple capacity, tan delta, diameter, height, pin pitch, etc.
regards Andrew T.
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Old 15th November 2011, 11:28 PM   #4
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Default lanzar 50c

need schematics bad will pay
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