Kingtronics Use Technique of Aluminum Electrolytic Capacitors

Example

１）Expected life of equipment (required conditions)
Ａ︓10 years with 24h operation
Ｂ︓10 years with 8h operation a day

２）Ambient temperature of capacitor 　　
65℃ (Check ・ no heat generated part on reverse or around)

・Capacitor selection

case 1)　

Ａ︓For 10 years with 24h operation
　　　　　 L = 24（hour）×　365（day）×　10（year）
　　　　　　　 = 87600（hour）→ Working hours for 10 years
　　　 Because the value is larger than 32000 hours, the 105℃ 2000h product does not satisfy the expected life, and the ambient temperature should be lowed.

Case 2)　

Ｂ︓For 10 years with 8h operation a day
　　　　　 L = 8（hour）×　365（day）×　10（year） 　
　　　　　　 = 29200（hour）→ Working hours for 10 years 　　
　 Because the value is smaller than 32000 hours, the105℃ 2000h product can be used.