Multilayer ceramic capacitors
Chip, MLSC, X7R
Series/Type:
Date:
Chip
February 2009
The following products presented in this data sheet are being withdrawn.
Substitute Products: See www.epcos.com/withdrawal_mlcc
Ordering Code
B37941X5333K060
B37941X5333K070
B37941X5473K060
Substitute Product
Date of
Withdrawal
2009-06-26
2009-06-26
2009-06-26
Deadline Last
Orders
2010-06-30
2010-06-30
2010-06-30
Last Shipments
2010-12-31
2010-12-31
2010-12-31
© EPCOS AG 2009. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Ordering Code
B37941X5473K070
B37941X5683K062
B37941X5683K072
B37941X5104K062
B37941X5104K072
B37941X1102K060
B37941X1102K070
B37941X1152K060
B37941X1152K070
B37941X1222K060
B37941X1222K070
B37941X1332K060
B37941X1332K070
B37941X1472K060
B37941X1472K070
B37941X1682K060
B37941X1682K070
B37941X1103K060
B37941X1103K070
B37941X1153K060
B37941X1153K070
B37941X1223K060
B37941X1223K070
B37931X5152K060
B37931X5152K070
B37931X5222K060
B37931X5222K070
B37931X5332K060
B37931X5332K070
B37931X5472K060
B37931X5472K070
B37931X5682K060
B37931X5682K070
B37931X5103K060
B37931X5103K070
B37931X1102K060
B37931X1102K070
Substitute Product
Date of
Withdrawal
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
2009-06-26
Deadline Last
Orders
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
2010-06-30
Last Shipments
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
2010-12-31
For further information please contact your nearest EPCOS sales office, which will also support
you in selecting a suitable substitute. The addresses of our worldwide sales network are
presented at www.epcos.com/sales.
Multilayer ceramic capacitors
MLSC; X7R
Chip
General
The MLSC was developed for typical applications with a direct connection to the battery or gener-
ator in the automobile, as it satisfies the requirements of the automobile manufacturers for a se-
ries connection of two capacitors for battery applications in a single component.
It not only represents the only real alternative to the series connection of discrete capacitors, but
also offers advantages over these and other possible solutions, which contain only a single ca-
pacitor.
Compared with a series circuit made up of conventional ceramic capacitors, it allows the number
of components to be reduced. This reduces the space requirement on the circuit board and short-
ens the placement time. Because fewer components are used, the failure probability is additional-
ly reduced.
The MLSC is based on proven MLCC technology, but has a more rugged design. This technology
offers highest reliability (ppb rate) on the basis of long field experience. Both undamaged and typi-
cally cracked MLSCs are characterized by a high breakdown voltage and high ESD and pulse
strength.
It may be used at temperatures of up to 150
°C
with consideration of a voltage derating and with
brief temperature peaks of up to 175
°C
without electrical stressing.
The MLSC is also manufactured to the specifications of the ppb level assurance system, and a
bending strength of 2 mm is assured on the basis of the rigorous piezoelectric method.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 16
Multilayer ceramic capacitors
MLSC; X7R
Ordering code system
B37941
Type and size
Chip size (inch/mm) = Temperature characteristic X7R:
0603/1608 B37931
0805/2012 B37941
Internal coding
"X" indicates MLSC type
Rated voltage
5 (Code) 50 VDC
1 (Code) 100 VDC
Capacitance,
coded (example)
103 10 10
3
pF = 10 nF
104 10 10
4
pF = 100 nF
223 22 10
3
pF = 22 nF
Capacitance tolerance
K
±10%
(standard)
Internal coding
X
1
103
K
0
60
Packaging
60 cardboard tape, 180-mm reel
62 blister tape, 180-mm reel
70 cardboard tape, 330-mm reel
72 blister tape, 330-mm reel
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 16
Multilayer ceramic capacitors
MLSC; X7R
Features
Two series-connected ceramic capacitors in a
single component
The MLSC thus satisfies the requirements of the
automobile manufacturers for applications on the
battery / generator (e.g. clamp 30 or clamp 15)
in a single component.
Reduction of the effects of a
bending fracture
placement fracture
solder-shock crack
thanks to a lower probability of a short circuit.
Evaluation criteria: Insulation resistance >10 k after the following treatment
bending until crack
humidity tests (85
°C/85%
RH, rated voltage), 14 days
The breakdown voltage of MLSCs in the case of a typical bending crack is still greater than
five times the rated voltage.
Both undamaged and cracked MLSCs are capable of fulfilling the requirements to
ISO 7637 for 12 V automotive power systems, including load-dump and jump-start
requirements (24 V/1 h and 36 V/1 h).
Based on AEC-Q200 Rev-C
Applications
Automobile electronics
for direct connection to the car battery or generator
at positions with “stranding potential”
as RF filters in small motors (e.g. electrically operated windows)
Power electronics (e.g. DC/DC converters)
Smoothing capacitors (e.g. on the rechargeable battery in mobile equipment)
Cautions
A short circuit cannot be completely excluded. The use of MLSCs does not therefore result in
100% fail-safe operation, but in the event of a crack the probability of a short circuit can be
greatly reduced.
In the event of an untypical (bending) crack formation (e. g. double-sided crack or extreme
mounting crack) and other mechanical or thermal damage to the capacitor, the capacitor may
have a low ohmic state.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 16
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