Re: Samsung LED TV Model UN32EH4003 Bad Cap?
ReeceyBurger123,
I am a beginner but want to learn from others!
"...I would say low esr type like Panasonic Fr or Fc etc will work fine"
Question: Do you recommend "low esr" caps for all Main Board TV replacement caps?
Did some checking before asking and found "Equivalent series resistance wiki" https://en.wikipedia.org/wiki/Equiva...ies_resistance
"...Aluminium and tantalum electrolytic capacitors with non solid electrolyte have much higher ESR values, up to several ohms, and ESR tends to increase with frequency due to effects of the electrolyte. A very serious problem, particularly with aluminium electrolytics, is that ESR increases over time with use; ESR can increase enough to cause circuit malfunction and even component damage,[1] although measured capacitance may remain within tolerance. While this happens with normal aging, high temperatures and large ripple current exacerbate the problem. In a circuit with significant ripple current, an increase in ESR will increase heat dissipation, thus accelerating aging."
Was especially interested in "ESR can increase enough to cause circuit malfunction and even component damage,[1] although measured capacitance may remain within tolerance."
Checked Panasonic Fc and Fr data sheets Both maxs are 100V so am guessing low esr caps do not matter for Power Supplies? Is this correct?
Thanks again for your help!!!
Ken
ReeceyBurger123,
I am a beginner but want to learn from others!
"...I would say low esr type like Panasonic Fr or Fc etc will work fine"
Question: Do you recommend "low esr" caps for all Main Board TV replacement caps?
Did some checking before asking and found "Equivalent series resistance wiki" https://en.wikipedia.org/wiki/Equiva...ies_resistance
"...Aluminium and tantalum electrolytic capacitors with non solid electrolyte have much higher ESR values, up to several ohms, and ESR tends to increase with frequency due to effects of the electrolyte. A very serious problem, particularly with aluminium electrolytics, is that ESR increases over time with use; ESR can increase enough to cause circuit malfunction and even component damage,[1] although measured capacitance may remain within tolerance. While this happens with normal aging, high temperatures and large ripple current exacerbate the problem. In a circuit with significant ripple current, an increase in ESR will increase heat dissipation, thus accelerating aging."
Was especially interested in "ESR can increase enough to cause circuit malfunction and even component damage,[1] although measured capacitance may remain within tolerance."
Checked Panasonic Fc and Fr data sheets Both maxs are 100V so am guessing low esr caps do not matter for Power Supplies? Is this correct?
Thanks again for your help!!!
Ken
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