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KEMET Organic Capacitor (KO-CAP) – T525 125°C Rated Polymer Tantalum
Derating Guidelines
Voltage
Rating
2.5 V ≤ V R  ≤ 10 V
12.5 V ≤ V R  ≤ 16 V
2.5 V ≤ V R  ≤ 10 V
Maximum Recommended
Steady State Voltage
-55°C to 105°C
90% of V R
80% of V R
105°C to 125°C
60% of V R
Maximum Recommended
Transient Voltage
(1ms – 1μs)
V R
V R
67% of V R
100%
95%
90%
85%
80%
75%
70%
65%
60%
55%
50%
-55
Maximum Transient Voltage
Recommended Application Voltage V r ≤ 10V
Recommended Application Voltage V r > 10V
25 45 85 105
Temperature (°C)
67%
60%
53%
125
12.5 V ≤ V R  ≤ 16 V
54% of V R
67% of V R
V R = Rated Voltage
Ripple Current/Ripple Voltage
Permissible AC ripple voltage and current are related to equivalent
series resistance (ESR) and the power dissipation capabilities of
the device. Permissible AC ripple voltage which may be applied is
limited by two criteria:
1. The positive peak AC voltage plus the DC bias voltage, if any,
must not exceed the DC voltage rating of the capacitor.
2. The negative peak AC voltage in combination with bias
voltage, if any, must not exceed the allowable limits specified for 
reverse voltage. See the Reverse Voltage section for allowable
limits.
The maximum power dissipation by case size can be determined
using the table at right. The maximum power dissipation rating
stated in the table must be reduced with increasing environmental
operating temperatures. Refer to the table below for temperature
compensation requirements.
Case Code
T
M
A
B
U
L
C
W
V
D
Y
X
EIA
Case Code
3528-12
3528-15
3216-18
3528-21
6032-15
6032-19
6032-28
7343-15
7343-20
7343-31
7343-40
7343-43
Maximum Power
Dissipation (P max)
mWatts@45°C
with +30°C Rise
105
120
112
127
135
150
165
180
187
225
241
247
Temperature Compensation Multipliers
for Maximum Power Dissipation
T ≤ 45°C 45° C < T ≤ 85°C 85°C < T ≤ 125°C
1.00 0.70 0.25
T= Environmental Temperature
Using the P max of the device, the maximum allowable rms ripple
current or voltage may be determined.
I(max) = √ P max/R
E(max) = Z √ P max/R
H 7360-20 187
I 3216-10 95
The maximum power dissipation rating must be reduced with increasing
environmental operating temperatures. Refer to the Temperature
Compensation Multiplier table for details.
I = rms ripple current (amperes)
E = rms ripple voltage (volts)
P max = maximum power dissipation (watts)
R = ESR at specified frequency (ohms)
Z = Impedance at specified frequency (ohms)
? KEMET Electronics Corporation ? P.O. Box 5928 ? Greenville, SC 29606 (864) 963-6300 ? www.kemet.com
T2017_T525 ? 2/3/2014
6
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