12

© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard

T2077_T540-541 • 8/27/2018

Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com

12

T540/T541 COTS Polymer Electrolytic for High Reliability Applications, 2.5 – 63 VDC

Derating Guidelines

50%

55%

60%

65%

70%

75%

80%

85%

90%

95%

100%

−55

25

45

85

105

125

Temperature (°C)

Rated Voltage

Recommended Application Voltage V

Recommended Application Voltage V

Recommended Application Voltage

KOCAP’s are solid state capacitors that demonstrate no wearout mechanism when operated within their recommended

guidelines. WhiletheKOCAPcanbeoperatedatfullratedvoltage,mostcircuitdesignersseekaminimumlevelof

assurance in long term reliability which should be demonstrated with data. A voltage derating can provide the desired level

of demonstrated reliability based on industry accepted acceleration models. Since most applications do require long term

reliability, KEMET recommends that designers consider a voltage derating, according the graphic above, for the maximum

steady state voltage.

Voltage

Rating

Maximum

Recommended

Steady State Voltage

Maximum

Recommended

Steady State Voltage

−55°Cto105°C

105°C to 125°C

2V≤V

90% of V

R

60% of V

12.5V≤V

80% of V

R

54% of V

V