Multilayer ceramic capacitors
Feedthrough chip, X7R
Series/Type:
Date:
Feedthrough chip
February 2009
The following products presented in this data sheet are being withdrawn.
Substitute Products: See www.epcos.com/withdrawal_mlcc
Ordering Code
B37872U5222S011
B37872U5472S011
B37872U5103S011
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
B37971U5224Z012
Substitute Product
Date of
Withdrawal
2009-06-26
Deadline Last
Orders
2010-06-30
Last Shipments
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
X7R
Feedthrough chip
Ordering code system
B37872
Type and size
Chip size (inch/mm) = Temperature characteristic X7R
1206/3216 B37872
1806/4616 B37971
Internal coding
"U" indicates feedthrough chip capacitor
Rated voltage
5 (Code) 50 VDC
1 (Code) 100 VDC
Capacitance,
coded (example)
222 22 10
2
pF = 2.2 nF
472 47 10
2
pF = 4.7 nF
U
5
222
S
0
11
Capacitance tolerance
S
+50% / 20% (standard for 1206)
Z
+80% / 20% (standard for 1806)
Internal coding
Packaging
11 cardboard tape, 180-mm reel
12 blister tape, 180-mm reel
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 13
Multilayer ceramic capacitors
X7R
Features
Excellent EMI suppression
Low parasitic inductance and low electrical losses
High attenuation at higher natural resonant
frequency
Space saving on the PCB
Based on AEC-Q200 Rev-C
Applications
EMI suppression / Decoupling and filtering
Noise suppression and broadband I/O filtering
Automotive brake systems (e.g. ABS)
Hall sensors
Termination
4 terminations, nickel barrier terminations (Ni) for lead-free soldering
Options
Alternative capacitance values, capacitance tolerances, C0G characteristic and feedthrough
arrays available on request
Delivery mode
Cardboard tape, 180-mm reel
Electrical data
Temperature characteristic
X7R
Max. relative capacitance change within 55 ... +125
°C ∆C/C ±15
Climatic category
(IEC 60068-1)
55/125/56
Standard
EIA
Dielectric
Class 2
Rated voltage
1)
V
R
50, 100
Test voltage
Capacitance range
Dissipation factor
DC resistance
Insulation resistance
2)
Insulation resistance
2)
Time constant
2)
Time constant
2)
Operating temperature range
Ageing
3)
V
test
C
R
tan
δ
R
DC
R
ins
R
ins
τ
τ
T
op
2.5 V
R
/5 s
2.2 nF ... 10 nF; 220 nF
< 25 10
-3
< 600
> 10
5
> 10
4
> 1000
> 100
55 ... +125
yes
%
VDC
VDC
(limit value)
(at +25
°C)
(at +125
°C)
(at +25
°C)
(at +125
°C)
mΩ
MΩ
MΩ
s
s
°C
1) Note: No operation on AC line.
2) For C
R
>10 nF the time constant
τ
= C R
ins
is given.
3) Refer to chapter "General technical information", "Ageing".
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 13
Multilayer ceramic capacitors
X7R
Capacitance tolerances
Code letter
Tolerance
S (standard for 1206) Z (standard for 1806)
+50/ 20%
+80/ 20%
Dimensional drawing
Dimensions (mm)
Case size
l
w
th
k
k
1
u
(inch)
(mm)
1206
3216
3.20
±0.20
1.60
±0.15
0.90 max.
0.40
±0.20
1.00
±0.35
0.20 +0.20/ 0.10
1806
4616
4.60
±0.20
1.60
±0.30
1.20 max.
0.40
±0.30
1.50
±0.30
0.30 +0.30/ 0.20
Tolerances to CECC 32101-801
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 13
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