VJ High Q Dielectric
Vishay Vitramon
Multilayer Ceramic Chip Capacitors
FEATURES
•
COG is an ultra-stable dielectric offering a Temperature
Coefficient of Capacitance (TCC) of 0
±
30PPM/°C over
the entire temperature range.
•
Low Dissipation Factor (DF).
•
Ideal for critical timing and tuning applications.
GENERAL SPECIFICATIONS
NOTE:
Electrical characteristics @ + 25°C unless otherwise
specified.
Capacitance Range:
1.0pF to 680pF.
Temperature Coefficient of Capacitance (TCC):
0
±
30PPM/°C from - 55°C to + 125°C.
Dissipation Factor (DF):
0.1% maximum @ 1.0 Vrms and 1kHz for values > 1000pF.
0.1% maximum @ 1.0 Vrms at 1MHz for values
≤
1000pF.
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% of rated voltage for 5
±
1 seconds, 50 milliamps
current maximum.
ORDERING INFORMATION
VJ
PRODUCT
SERIES
0805
CASE
SIZE
Q
DIELECTRIC
102
CAPACITANCE
NOMINAL CODE
A
K
X
DC
CAPACITANCE TERMINATION
VOLTAGE
TOLERANCE
RATING
A = 50V
B = 100V
C = 200V
A
MARKING
T
PACKAGING
VJ = MLCC
0603
0805
1206
1210
Q = High Q
A = Unmarked
Expressed in picofarads (pF).
The first two digits are
significant, the third is a
multiplier. An “R” indicates a
decimal point.
Examples:
102 = 1000pF.
1R8 = 1.8pF.
X = Nickel barrier
with 100% tin
plated finish
F = Palladium silver
T = 7" Reel, plastic tape
C = 7" Reel, paper tape
R = 11 1/4" Reel, plastic tape
P = 11 1/4" Reel, paper tape
B = Bulk
NOTE:
0402 and 0603
available in paper tape only
C =
±
0.25pF (1 to 25pF)
D =
±
0.5pF (1 to 50pF)
F =
±
1% (≥ 10pF)
G=
±
2% (≥ 5pF)
J =
±
5% (≥ 2pF)
K =
±
10% (≥ 1pF)
Document Number 45050
Revision 06-Apr-01
www.vishay.com
31
VJ High Q Dielectric
Vishay Vitramon
HIGH Q - DIELECTRIC TYPICAL PARAMETERS
RESONANT FREQUENCY (GHz)
TEMPERATURE COEFFICIENT OF CAPACITANCE
2.0
1.5
1.0
0.5
0.0
- 0.5
- 1.0
- 1.5
- 2.0
-75 -50 -25 0 25 50 75 100 125
TEMPERATURE
°
C
Q vs FREQUENCY - VJ0805, 50V
10000
10pF
1000
1
HIGH Q
SERIES RESONANT FREQUENCY - HIGH Q
10
% CAPACITANCE CHANGE
1
1206
0.1
1
0603
0805
1210
10
100
CAPACITANCE (pF)
1000
ESR vs FREQUENCY - VJ0805, 50V
ESR (
Ω
)
100
10
1
100
100pF
0.1
10pF
Q
100pF
0.01
1000
FREQUENCY (MHz)
Q vs FREQUENCY - VJ1206, 50V
100
FREQUENCY (MHz)
ESR vs FREQUENCY - VJ1206, 50V
1
10pF
1000
10000
1000
100
10
1
100
FREQUENCY (MHz)
Q vs FREQUENCY - VJ1210, 50V
1000
1000
ESR (
Ω
)
10pF
0.1
100pF
Q
100pF
0.01
100
FREQUENCY (MHz)
ESR vs FREQUENCY - VJ1210, 50V
1
1000
100
ESR (
Ω
)
180pF
0.1
680pF
Q
10
100
680pF
180pF
1000
0.01
100
FREQUENCY (MHz)
1000
FREQUENCY (MHz)
Document Number 45050
Revision 06-Apr-01
www.vishay.com
33
Embedded System
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