Multilayer Ceramic Capacitors
X7R
Ordering code system
Chip
B37941
K
5
102
K
0
60
Packaging
60
62
70
72
01
^
^
^
^
^
cardboard tape, 180-mm reel
blister tape, 180-mm reel
cardboard tape, 330-mm reel
blister tape, 330-mm reel
bulk case
Internal coding
Capacitance tolerance
J
^
±
5%
K
^
±
10 % (standard)
M
^
±
20 %
Capacitance,
coded
(example)
102
^
10 · 10
2
pF = 1 nF
104
^
10 · 10
4
pF = 100 nF
223
^
22 · 10
3
pF = 22 nF
16
9
25
0
50
5
100
1
200
2
500
3
Rated voltage
Rated voltage [VDC] 10
Code
8
Termination
Standard:
On request:
K
^
nickel barrier for case sizes 0402, 0603, 0805, 1206, 1210
J
^
silver palladium for case sizes 1812, 2220 (cap. values
£
1 µF)
J
^
silver palladium for conductive adhesion: all case sizes
Type and size
Chip size
(inch / mm)
0402
/ 1005
0603
/ 1608
0805
/ 2012
1206
/ 3216
1210
/ 3225
1812
/ 4532
2220
/ 5750
Temperature characteristic
X7R
B37921
B37931
B37941
B37872
B37950
B37953
B37956
36
10/02
Multilayer Ceramic Capacitors
X7R
Features
■
■
■
■
Chip
High volumetric efficiency
Non-linear capacitance change
High insulation resistance
High pulse strength
Applications
■
Blocking and coupling
■
Decoupling
■
Interference suppression
Termination
■
For soldering: Nickel-barrier termination (Ni) for case sizes 0402 to 1210
Silver-palladium termination (AgPd) for case sizes 1812 and 2220
(capacitance values
≤
1
µF)
■
For conductive adhesion: Silver-palladium termination (AgPd) for all case sizes on request
Options
■
Alternative capacitance tolerances available on request
Delivery mode
■
Cardboard and blister tape (blister tape for chip thickness
≥
1,2
±
0,1 mm and case sizes
≥
1210),
180-mm and 330-mm reel available
■
Bulk case for case sizes 0603 (16 V, 25 V, 50 V) and 0805 (50 V)
Electrical data
Temperature characteristic
Climatic category (IEC 60068-1)
Standard
Dielectric
Rated voltage
1)
Test voltage
Capacitance range
2)
/ E series
Max. relative capacitance change
Dissipation factor (limit value)
Insulation resistance
3)
at + 25
°C
Insulation resistance
3)
at +125
°C
Time constant
3)
at + 25
°C
Time constant
3)
at +125
°C
Operating temperature range
Ageing
4)
1) Note: No operation on AC line.
2) See also chapter “HighCap”, page 57.
V
R
V
test
C
R
∆C/C
tan
δ
R
ins
R
ins
τ
τ
T
op
X7R
55/125/56
EIA
Class 2
10, 16, 25, 50,100, 200, 500
2,5 ·
V
R
/5 s
100 pF … 1 µF (E3/E6)
±15
< 25 · 10
–3
< 35 · 10
–3
for
≤
25 V
> 10
5
> 10
4
> 1000
> 100
–55 … +125
yes
VDC
VDC
%
MΩ
MΩ
s
s
°C
3) For
C
R
> 10 nF the time constant
τ
=
C
·
R
ins
is given.
4) Refer to chapter “General Techn. Inform.”, page 197.
37
10/02
嵌入式系统
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