Datasheet

9© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2053_T498_AUTO • 12/13/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
9
Tantalum Surface Mount Capacitors – Automotive Grade
T498 Automotive Grade MnO
2
150°C
Recommended Voltage Derating Guidelines
Rated
Voltage
Working Voltage
Recommended
Application Voltage (for
maximum reliability)
85°C
150°C
85°C
150°C
4
4
2.68
2
1.32
6.3
6.3
4.22
3.15
2.08
10
10
6.70
5
3.30
16
16
10.72
8
5.28
20
20
13.40
10
6.60
25
25
16.75
12.5
8.25
35
35
23.45
17.5
11.55
50
50
33.50
25
16.50
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
specied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.
Temperature Compensation Multipliers
for Maximum Ripple Current
T≤25°C
T≤85°C
T≤125°C
T≤150°C
1.00
0.90
0.40
0.30
T= Environmental Temperature
The maximum power dissipation rating must be reduced with increasing
environmental operating temperatures. Refer to the Temperature
Compensation Multiplier table for details.
KEMET Series
and Case Code
EIA
Case Code
Maximum Power
Dissipation
(P max) mWatts
at 25°C with
+20°C Rise
A
3216–18
75
B
3528–21
85
C
6032–28
110
D
7343–31
150
X
7343–43
165
E
7360–38
200
S
3216–12
60
T
3528–12
70
U
6032–15
90
V
7343–20
125
T510X
7343–43
270
T510E
7360–38
285
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
I = rms ripple current (amperes)
E = rms ripple voltage (volts)
P max = maximum power dissipation (watts)
R = ESR at specied frequency (ohms)
Z = Impedance at specied frequency (ohms)
0
0.2
0.4
0.6
0.8
1
1.2
−55 25 85 125 150
% Working Voltage
Temperature (°C)
% Change in Working DC Voltage with
Temperature
Recommended Maximum Application
Voltage (As % of Rated Voltage)
67%
33%