
Cornell Dubilier
• 140 Technology Place • Liberty, SC 29657 • Phone: (864)843-2277 • Fax: (864)843-3800 • www.cde.com
Wet Tantalum - CLR 79 (MIL-C-39006/22)
CLR 81 (MIL-C-39006/25)
Application Guide
120 Hz
1 kHz
10 kHz
40 kHz
100 kHz
≤55° 85° 105° 125° ≤55° 85° 105° 125° ≤55° 85° 105° 125° ≤55° 85° 105° 125° ≤55° 85° 105° 125°
% OF + 85°
RATED
PEAK VOLTAGE
100%
.60
.39
-
-
.72
.45
-
-
.88
.55
-
-
1.0
.63
-
-
1.1
.69
-
-
90%
.60
.46
-
-
.72
.55
-
-
.88
.67
-
-
1.0
.77
-
-
1.1
.85
-
-
80%
.60
.52
.35
-
.72
.62
.42
.88
.76
.52
-
1.0
.87
.59
-
1.1
.96
.65
-
70%
.60
.58
.36
-
.72
.70
.52
.88
.85
.64
-
1.0
.97
.73
-
1.1 1.07 .80
-
66 2/3%
and below
.60
.60
.37
.27
.72
.72
.55
.32
.88
.88
.68
.40
1.0
1.0
.77
.45
1.1
1.1
.85
.50
RIPPLE CURRENT
RIPPLE VOLTAGE
The ripple current listed in the Ratings Table for each
The peak of the applied AC ripple voltage plus the applied DC
capacitor rating is the maximum permissible rms ripple
voltage must not exceed the DC voltage rating of the cap-
current at 40 kHz, 85°C and 2/3 of the 85°C peak voltage.
acitor either forward or reverse.
The rms ripple rating at 85°C and 40 kHz is based on a
Capacitors must be biased such that the negative peak
maximum internal temperature rise of 50°C. The maximum
is not more negative than –3 volts and the positive peak
allowable internal temperature rise decreases linearly
does not exceed the voltage rating of the capacitor.
from 50°C to 10°C at an ambient of 125°C.
The applied DC voltage should be of sufficient magnitude
RIPPLE CURRENT MULTIPLIERS
to prevent polarity reversal in excess of 3 volts at 85°C
The rms ripple current capability is shown in the Standard
and 2 volts at 125°C.
Ratings Table for each rating at 85°C ambient and at 40 kHz.
For operation at other temperatures and frequencies use
CAUTIONS AGAINST MISAPPLICATION
the multipliers shown in the Ripple Current Multipliers Table.
1. Do not operate at temperatures above the maximum rated.
2. Do not exceed rated WVdc and Surge Voltage of the capacitor.
SHELF LIFE
3. Do not apply ripple voltage or ripple current in excess of
These capacitors have an expected shelf life of ten or
specification limits.
more years when stored at room temperature. Cold
storage has no adverse effects on the capacitor.
Violations of above can be hazardous and can cause capacitor
failure or equipment failure.
RIPPLE CURRENT MULTIPLIERS FOR FREQUENCY, TEMPERATURE, AND APPLIED PEAK VOLTAGE
APPLIED RIPPLE CURRENT FREQUENCY
RIPPLE CURRENT MULTIPLIERS
OPERATING TEMPERATURE °C
AMBIENT STILL
AIR