HERMETICALLY SEALED - METAL CASES
SOLID TANTALUM MnO
2
CAPACITORS
CTS21
CTS21E
Solid tantalum MnO
2
capacitors
Hermetically sealed metal cases
Axial leads
For power supplies and converters
Polarized
ELECTRICAL AND CLIMATIC CHARACTERISTICS
CTS21
Detail specification
Operating temperature
Damp heat
Capacitance range
Tolerance
Voltage range
Max. capacitance change –55°C
Max. capacitance change +85°C
Max. capacitance change +125°C
Maximum DF at +20°C
Maximum DF at –55°C
Maximum DF at +85°C
Maximum DF at +125°C
Max. leakage current at +20°C
Max. leakage current at +85°C
Max. leakage current at +125°C
Max. ESR at 100kHz +20°C
Max. ripple current 1kHz +20°C
Max. ripple current 100kHz +20°C
High surge current
Max. Reverse voltage at +20°C
Max. Reverse voltage at +85°C
Max. Reverse voltage at +125°C
Max. surge voltage at +85°C
Max. surge voltage at +125°C
CECC 30201-040
–55°C +125°C
56 days
5,6µF
330µF
±10% - ±20%
6,3V
50V
–10%
+8%
+12%
see table
= 2 x lim20°C
= 1,5 x lim20°C
= 1,5 x lim20°C
see table
0,1 x C
R
U
R
0,125 x C
R
U
R
see table
see table
see table
1 million cycles
15 % U
R
5 % U
R
1 % U
R
1,3 x U
R
1,3 x U
C
CTS21E
CECC 30201-040
–55°C +125°C
56 days
22µF
1000µF
±10% - ±20%
6,3V
50V
–10%
+8%
+12%
see table
= 2 x lim20°C
= 1,5 x lim20°C
= 1,5 x lim20°C
see table
0,1 x C
R
U
R
0,125 x C
R
U
R
see table
see table
see table
1 million cycles
15 % U
R
5 % U
R
1 % U
R
1,3 x U
R
1,3 x U
C
DIMENSIONS
(mm)
Case code
C
D
Dimensions with insulating sleeve
Lt max
L max
D max
d
+10%/ – 0,05
20,5
18,2
7,5
0,6
24,0
20,8
9,1
0,6
30 min (*)
L
30 min (*)
d
Lt
(*) 23mm for capacitors delivered on tape
D
MARKING, PACKAGING, CONSTRUCTION:
see general characteristics
HOW TO ORDER
Commercial
description
EXXELIA PN
Model
CTS21
CTS21E
Model code
TS21
TS21E
Case
D
Case
D
Capacitance in µF
22µF
Capacitance code
226
Expressed in pF with 3 digits:
2 digits for the value
and the third for the multiplier
Tolerance in %
DC Voltage
20%
50V
Tolerance code DC Voltage code
M
050
K
= 10%
M
= 20%
Expressed in volt
with 3 digits
Termination
H
Termination
A
Commercial description
H
= SnPb (No RoHS)
-
= Sn100% (RoHS)
EXXELIA PN
A
= SnPb (No RoHS)
F
= Sn100% (RoHS)
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SOLID TANTALUM MnO
2
CAPACITORS
HERMETICALLY SEALED - METAL CASES
CTS21
STANDARD RATINGS - ELECTRICAL CHARACTERISTICS
Capacitance
1kHz
+20°C
(µF)
120
150
270
330
82
100
180
220
56
68
120
150
39
47
82
100
27
33
56
68
22
27
33
39
47
5,6
6,8
8,2
10
12
15
18
22
Case
(code)
Max. I leak
+20°C
(µA)
(Standard range
)
C
C
D
D
C
C
D
D
C
C
D
D
C
C
D
D
C
C
D
D
C
D
D
D
D
C
C
C
C
C
C
C
D
Max. DF
Max. ESR
Irms Max.
1kHz
Type
100kHz +20°C
1kHz +20°C
+20°C
(mΩ)
(A)
(%)
Rated voltage (+85°C) 6,3 V
(6 V for CTS21M)
- Category voltage (+125°C) 4 V
CTS21
7,6
8
70
2,5
CTS21
9,4
10
65
2
CTS21
17
10
50
3,4
CTS21
20,8
12
45
3,8
Rated voltage (+85°C) 10 V - Category voltage (+125°C) 6,3 V
CTS21
8,2
8
85
1,8
CTS21
10
8
75
2,2
CTS21
18
8
60
3,4
CTS21
22
10
55
3,4
Rated voltage (+85°C) 16 V
(15 V for CTS21M)
- Category voltage (+125°C) 10 V
CTS21
8,9
6
100
1,8
CTS21
10,8
6
95
2,2
CTS21
19,2
8
70
2,8
CTS21
24
8
65
3,1
Rated voltage (+85°C) 20 V - Category voltage (+125°C) 13 V
CTS21
7,8
5
120
1,7
CTS21
9,4
6
110
1,8
CTS21
16,4
6
85
2,5
CTS21
20
8
75
2,5
Rated voltage (+85°C) 25 V - Category voltage (+125°C) 16 V
CTS21
6,7
5
145
1,2
CTS21
8,2
5
130
1,4
CTS21
14
6
100
2,2
CTS21
17
6
95
2,4
Rated voltage (+85°C) 35 or 40 V
(35 V for CTS21M)
- Category voltage (+125°C) 23 or 25 V
CTS21
7,7
4
160
1,5
CTS21
9,5
4
145
1,9
CTS21
11,6
5
130
1,9
CTS21
13,7
5
120
2
CTS21
16,5
5
110
2,2
Rated voltage (+85°C) 50 V - Category voltage (+125°C) 32 V
CTS21
2,8
3
300
0,6
CTS21
3,4
3
275
0,7
CTS21
4,1
3
250
0,9
CTS21
5
3
230
1,1
CTS21
6
3
210
1,3
CTS21
7,5
3
190
1,4
CTS21
9
4
175
1,4
CTS21
11
4
160
1,7
Irms Max.
100kHz +20°C
(A)
3,2
3,3
4,1
4,3
2,9
3
3,7
3,9
2,6
2,7
3,5
3,6
2,4
2,5
3,1
3,3
2,2
2,3
2,9
3
2,1
2,4
2,5
2,6
2,7
1,5
1,6
1,6
1,7
1,8
1,9
2,0
2,3
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HERMETICALLY SEALED - METAL CASES
SOLID TANTALUM MnO
2
CAPACITORS
(Extended range
)
STANDARD RATINGS - ELECTRICAL CHARACTERISTICS
Capacitance
1kHz
+20°C
(µF)
330
390
470
680
820
1000
220
270
390
470
560
150
180
270
330
100
120
180
220
56
68
82
150
33
39
47
56
68
82
100
120
22
27
33
39
47
56
68
47*
Case
(code)
Type
Max. DF
Max. ESR
1kHz
100kHz
+20°C
+20°C
(%)
(mΩ)
Rated voltage (+85°C) 6,3 V - Category voltage (+125°C) 4 V
20,8
12
45
24,6
12
40
29,6
14
40
42,8
18
35
51,7
18
30
63
22
30
Rated voltage (+85°C) 10 V - Category voltage (+125°C) 6,3 V
22
10
55
27
10
50
39
12
40
47
14
40
56
14
35
Rated voltage (+85°C) 16 V - Category voltage (+125°C) 10 V
24
10
65
28,8
10
60
43,2
10
50
52,8
12
45
Rated voltage (+85°C) 20 V - Category voltage (+125°C) 13 V
20
8
75
24
8
70
36
10
60
44
10
55
Rated voltage (+85°C) 25 V - Category voltage (+125°C) 16 V
14
6
100
17
6
95
20,5
6
85
37,5
10
65
Rated voltage (+85°C) 35 or 40 V - Category voltage (+125°C) 23 or 25 V
11,5
5
130
13,6
5
120
16,4
6
110
19,6
6
100
23,8
6
95
28,7
6
85
35
8
75
42
8
70
Rated voltage (+85°C) 50 V - Category voltage (+125°C) 32 V
11
4
160
13,5
5
145
16,5
5
130
19,5
5
120
23,5
6
110
28
6
100
34
6
95
Rated voltage (+85°C) 63 V - Category voltage (+125°C) 40 V
29,6
10
110
Max. I leak
+20°C
(µA)
Irms Max.
1kHz
+20°C
(A)
2,4
2,6
2,6
4,0
4,0
4,1
2,2
2,4
3,8
3,8
3,9
2,0
2,4
3,4
3,8
2,2
2,5
3,4
3,4
1,8
2,2
2,2
2,8
1,4
1,7
1,8
2,2
2,4
2,5
2,5
2,8
1,5
1,5
1,9
2,0
2,2
2,2
2,4
2,2
CTS21E
Irms Max.
100kHz
+20°C
(A)
3,9
4,1
4,2
5,2
5,2
5,7
3,6
3,7
4,5
4,5
4,8
3,3
3,4
4,1
4,3
3,0
3,2
3,7
3,9
2,6
2,7
2,9
3,6
2,3
2,4
2,5
2,9
3,0
3,1
3,3
3,5
2,1
2,2
2,5
2,6
2,7
2,9
3,0
2,7
C
C
C
D
D
D
C
C
D
D
D
C
C
D
D
C
C
D
D
C
C
C
D
C
C
C
D
D
D
D
D
C
C
D
D
D
D
D
D
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
CTS21E
* out of CECC range
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SOLID TANTALUM MnO
2
CAPACITORS
HERMETICALLY SEALED - METAL CASES
Electrical characteristics
CAPACITANCE
The capacitance is defined by a rated value (C
R
, indicated on the capacitor) and
a tolerance (generally ±20%).
The capacitance is measured for most of the types at a 100Hz frequency
(1 kHz for CTS21 - CTS21E - CTC21 - CTC21E) under a 0,1 to 1 V
AC
voltage and a
2,1 to 2,5 V bias.
At room temperature, it must be in the range defined by the rated value and
the tolerance.
Capacitance change vs applied DC voltage: negligeable
CAPACITANCE CHANGE VS FREQUENCY: STANDARD TYPES
C/C
100%
CAPACITANCE CHANGE VS TEMPERATURE: CTC21 AND CTS21
C/C
+15%
+10%
+5%
0
–5%
–10%
–50
–30
–10 0
20
40
60
80
100
120
T (°C)
See typical curves below . Maximum changes are given, for each type, on the
data sheets.
TOLERANCE (ON RATED CAPACITANCE)
It defines, with the rated capacitance, the range in which the capacitance value
must be at room temperature
50%
e.g.:
Rated capacitance: 100µF
Tolerance: 20%
The measured capacitance must be between:
100 - (20% of 100) = 80 and 100 + (20% of 100) = 120
The standard tolerance for tantalum capacitors is 20%.
±20%
1
0.8
1.2
±20%
1.5
1.8
±20%
2.2
2.7
±20%
3.3
3.9
±20%
4.7
5.6
±20%
6.8
8.2
100
1k
10k
100k
f (Hz)
CAPACITANCE CHANGE VS TEMPERATURE: STANDARD TYPES
C/C
+15%
+10%
+5%
0
–5%
–10%
–50
–30
–10 0
20
40
60
80
100
120
T (°C)
DIRECT DC VOLTAGE
The rated voltage (U
R
),
indicated on the capacitor, is the maximum DC voltage
which can be applied continuously between –55°C and +85°C.
For the types which can be used up to 125°C, the voltage must be derated
between +85°C and +125°C according to the following curve.
U
R
0. 8
0. 6
0. 4
0.2
U
C
= 66% U
R
CAPACITANCE CHANGE VS FREQUENCY: CTC21 AND CTS21
C/C
100%
-50 -4 0 -30 -20 -10
0
10
20 30 40
50
60 70
80 90 100 110 120
T (°C)
The category voltage (U
C
)
is consequently the maximum DC voltage which can
be applied continuously at +125°C.
50%
The surge voltage
is the maximum voltage which can be applied for short
periods.
It is given for each type in the data sheet and is generally equal to 1,3 times
U
R
between –55°C and +85°C and 1,3 times U
C
at +125°C.
Tests are performed with charging periods of 30 seconds, through a 1000 Ω
resistor, and discharging periods of 5 min 30 s. 1000 cycles are done.
1k
10k
100k
1M
f (Hz)
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HERMETICALLY SEALED - METAL CASES
SOLID TANTALUM MnO
2
CAPACITORS
Electrical characteristics
REVERSE VOLTAGE
This characteristic is not guaranteed for all types (see data sheets).
MAXIMUM REVERSE VOLTAGE IS GENERALLY:
• 0,15 times U
R
at +20°C
• 0,05 times U
R
at +85°C
• 0,01 times U
R
at +125°C
TESTS ARE PERFORMED WITH THE FOLLOWING CONDITIONS:
125 hours under Reverse voltage followed by 125 hours under direct voltage.
DISSIPATION FACTOR
Dissipation factor is generally measured at the same time as the capacitance
(at 100Hz or 1kHz depending on the model), with the same conditions. It is a
function of the series resistance of the capacitor and the capacitance at low
frequency.
DF = ESR x C x 2
p
f
LEAKAGE CURRENT
Leakage current is the residual current which flows through the capacitor after
the charging time, under rated voltage. It is measured after a time not exceeding
5 minutes and is given in µA.
It is equivalent to the insulation resistance of the capacitor and it must be as
low as possible.
Maximum leakage current is a function of capacitance and rated voltage
values and is given, for each type, in the data sheets.
At low frequency, the series resistance is the sum of an ohmic part (leads,
contacts, MnO
2
) and the dielectric losses.
Dissipation factor is given in % and maximum limits are given for each type in
the data sheets.
DISSIPATION FACTOR CHANGE VS TEMPERATURE
14
12
10
9
DF (10
–2
) Dissipation factor (%)
AT 20°C, THE LIMIT IS GENERALLY:
Lc Max. (µA) = 0,01 x C
R
x U
R
with C
R
in µF and U
R
in V.
LEAKAGE CURRENT CHANGE VS APPLIED VOLTAGE
2
8
7
6
5
4
3
2
1
–55 –40
–20
0
+20
+40
+60
+85 +100
+125
1
0.5
0.4
0.3
0.2
Temperature (°C)
0.1
DISSIPATION FACTOR CHANGE VS FREQUENCY
Multiplier of leakage current
0.05
0.04
0.03
0.02
20
Multiplier of 100Hz dissipation factor
DF (f)
Tg
δ
(100Hz)
0.01
0
10
20
30
40
50
60
70
80
90
100
10
% U
R
- Percentage of rated voltage
LEAKAGE CURRENT CHANGE VS TEMPERATURE
20
5
4
3
2
10
5
4
3
2
1
100
1k
10k
Frequency (Hz)
Multiplier of leakage current
Lc (t°C)
-----------
----------
Lc (+20°C)
1
0.5
0.4
0.3
0.2
0.1
–55 –40
–20
0
+20
+40
+60
+85 +100
+125
Temperature (°C)
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