RuGGed Chip for Power Supply Applications
Vishay Vitramon
Multilayer Ceramic Chip Capacitors
FEATURES
• Rugged, surface-mountable, multilayer ceramic capacitors
• Low ESR for filtering
• Efficient low-power consumption
• High reliability compared to standard design
GENERAL SPECIFICATIONS
NOTE:
Electrical characteristics @ + 25°C unless otherwise
specified.
Capacitance Range:
0.068pF to 1.8µF.
Dissipation Factor (DF):
2.5% maximum @ 1.0 Vrms and 1kHz.
Temperature Coefficient of Capacitance (TCC):
X7R:
±
15% from - 55°C to + 125°C, with 0 Vdc applied.
Insulation Resistance (IR):
@ + 25°C and rated voltage 100,000 Megohms minimum or
1000 ohm-farads, whichever is less.
@ + 125°C and rated voltage 10,000 Megohms minimum or
100 ohm-farads, whichever is less.
Dielectric Withstanding Voltage (DWV):
250% rated voltage for 5
±
1 seconds, 50 milliamps current
maximum. For 100V and low ratings.
Aging Rate:
1% maximum per decade.
DIMENSIONS
in inches [millimeters]
CASE SIZE
0805
1206
1210
1812
1825
2220
2225
STYLE/DIELECTRIC
VJ7079
VJ7668
VJ7921
VJ7121
VJ7948
VJ7119
VJ7133
THICKNESS (T)
(Max.)
0.045 [1.14]
0.049 [1.24]
0.058 [1.47]
0.050 [1.32]
0.086 [2.18]
0.086 [2.18]
0.086 [2.18]
ORDERING INFORMATION
VJ
PRODUCT
SERIES
7079
CASE
SIZE
334
K
D
Y
DIELECTRIC CAPACITANCE CAPACITANCE TERMINATION
NOMINAL CODE TOLERANCE
P
DC
VOLTAGE
RATING
A
MARKING
T
PACKAGING
VJ = MLCC
7079
7668
7921
7121
7948
7119
7133
Y = X7R
J =
±
5%
K =
±
10%
M=
±
20%
Expressed in picofarads (pF).
The first two digits are
significant, the third is a
multiplier.
Example:
334 = 330,000pF.
D = Double
Terminated
Nickel barrier
with 100% tin
plated finish
B = 100V
C = 200V
E = 500V
A = Unmarked
T = 7" Reel, plastic tape
R = 11 1/4" Reel, plastic tape
www.vishay.com
42
For technical questions, contact: MLCC@vishay.com
Document Number 45031
Revision 16-Oct-02
RuGGed Chip for Power Supply Applications
Vishay Vitramon
RUGGED CHIP FOR POWER SUPPLY APPLICATIONS
STYLE
E.I.A. TYPE
VOLTAGE (Vdc)
Capacitance
Code
683
823
104
124
154
184
224
334
394
474
564
684
824
125
155
185
Capacitance
µ
F
0.068
0.082
0.10
0.12
0.15
0.18
0.22
0.33
0.39
0.47
0.56
0.68
0.82
1.20
1.50
1.80
VJ7079
0805
100V
VJ7668
1206
VJ7921
1210
VJ7121
1812
VJ7948
1825
VJ7119
2220
VJ7133
2225
100V 200V 100V 200V 100V 200V 500V 100V 200V 500V 100V 200V 500V 100V 200V 500V
Document Number 45031
Revision 16-Oct-02
For technical questions, contact: MLCC@vishay.com
www.vishay.com
43
RuGGed Chip for Power Supply Applications
Vishay Vitramon
X7R DIELECTRIC - TYPICAL PARAMETERS
TEMPERATURE COEFFICIENT OF CAPACITANCE
% CAPACITANCE CHANGE
TEMPERATURE (
°
C)
4
2
0
-2
-4
-6
-8
- 10
- 60 - 40 - 20
0
20
40
60 80 100 120
TEMPERATURE
°
C
90
80
70
60
50
40
30
20
10
0
0
RIPPLE CURRENT
1812 CASE SIZE, 824nF, 100V
0.5
1
1.5
2
2.5
RIPPLE CURRENT (100kHz Arms)
MINIMUM INSULATION
RESISTANCE vs TEMPERATURE
10000
INSULATION RESISTANCE
(
Ω
Farads)
1000
100
10
10
25
TEMPERATURE
°
C
100 125
DISSIPATION FACTOR vs TEMPERATURE
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
- 75 - 50 - 25
0
1.0
0.0
AGING RATE - X7R
% DISSIPATION FACTOR
∆
C%
X7R
25
50
75 100 125
- 1.0
- 2.0
- 3.0
- 4.0
1
10
100
HOURS
1000
10000
TEMPERATURE
°
C
www.vishay.com
44
For technical questions, contact: MLCC@vishay.com
Document Number 45031
Revision 16-Oct-02
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