4
Ceramic Chip Capacitors
n
NPO & COG Dielectric
Application
CERAMIC
DIELECTRIC
TERMINATION
NPO (COG) dielectric properties suiter for precision circuits,
requiring stable dielectric characteristics:
* Negligible dependence of capacitance and dissipation
factor on time, voltage, and frequency
* Low-loss (High Q)
* Predictable linear temperature coefficient
* No Piezoelectric behavior
General Specification
• Operating temperature range -55°C ~ +125°C
• Capacitance Range: 10pF ~ 0.01uF
• Capacitance Tolerance: ±0.25pF, ±0.5pF, ±5%, ±10%
• Voltage Ratings, 50VDC, 100VDC, 200VDC
• Dissipation Factor (1 KHz, or MHz, 1 Vrms, 25°C) 0.15%
Max
• Insulation Resistance (rated voltage applied at 25°C)
100,000 megohms or 1,000 Ohm-Farads min.
• Dielectric strength > 2.5X WV. DC.
INTERNAL
ELECTRODE
∆
C, D.F. vs. Frequency Coefficient
0.2
+0.2
∆
C, vs. Voltage Coefficient
%
∆
Capacitance
1.0
0
-1.0
-2.0
2
3
4
5
6
0.1
0 % D.F.
%
∆
Capacitance
+0.1
0
-0.1
-0.2
-0.1
-0.2
10
10
10
10
10
10
0
25
50
75
100
125
150
175
200
Frequency
DC. Volts Applied
Insulation Resistance vs. Temp
Insulation Resistance (Ohm-Farads)
10,000
0.4
0.2
∆
C,D.F. vs. Temperature Coefficient
.10
Typical TC
%
∆
Capacitance
1,000
∆
C
.08
0
.06
-0.2
-0.4
.04
DF
.02
100
10
+10 +20
+25
+40
+60
+80
+100
+150 +200
-50
-25
0
+25
+50
+75
+100
125
Temperature °C
Temperature °C
2-4
TSC Electronics, Ltd.
Tel: (310) 534-2738 • Fax: (310) 534-3216 • http://www.tscgroup.com
% D.F.
4
Ceramic Chip Capacitors
472
CAPACITANCE
CODE
1st two digits are
signifi. third digit
denotes number
of zeros to follow
472 = 4700PF R
denotes decimal
2R7 = 2.7PF
K
TOLERANCE
CODE
C = +-0.25PF
D = +-0.50PF
F = +-1%
J = +-5%
K = +-10%
M = +-20%
n
NPO & COG Dielectric
Part Number System
0805
SIZE
see chart
COG
DIELECTIC
COG (NPO)
H
VOLTAGE
CODE
H = 50VDC
T = 100VDC
U = 200VDC
P
TERMINATION
CODE
P = pd/Ag
S = Silver
R = Solder
N = Nickel
barrier
T
PACKING CODE
B = Bulk
T = Taped & Reeled
SIZES AND VALUES AVAILABLE
1:1
STYLE
* L (mm, in)
* W(mm, in)
T Max(mm, in)
EB Min(mm, in)
CAP. (PF) Tol.
2.0
1.25
1.25
0.2
WV
(DC)
0805
0.080
0.050
0.050
0.008
WV
(DC)
WV
(DC)
1206
3.2
1.6
1.25
0.3
WV
(DC)
1210
3.2
2.5
1.5
0.3
WV
(DC)
1805
4.5
1.25
1.25
0.3
WV
(DC)
1808
4.5
2.0
1.5
0.3
WV
(DC)
1812
4.5
3.2
1.9
0.3
WV
(DC)
2220
5.6
5.0
2.0
0.3
WV
(DC)
0.126
0.063
0.050
0.012
WV
(DC)
WV
(DC)
0.126
0.098
0.060
0.012
WV
(DC)
WV
(DC)
0.177
0.05
0.050
0.012
WV
(DC)
WV
(DC)
0.177
0.079
0.060
0.012
WV
(DC)
WV
(DC)
0.177
0.126
0.075
0.012
WV
(DC)
WV
(DC)
0.220
0.197
0.079
0.012
WV
(DC)
WV
(DC)
50
100
200
50
100
200
50
100
200
50
100
200
50
100
200
50
100
200
50
100
200
10
12
15
18
22
27
33
39
47
58
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1,000
1,200
1,500
1,800
2,200
2,700
3,300
3,900
4,700
5,600
6,800
8,200
10,000
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
J.K.
L
W
EB
T. Max
* Tolerance +-0.01", 7% Whichever is greater
TSC Electronics, Ltd.
Tel: (310) 534-2738 • Fax: (310) 534-3216 • http://www.tscgroup.com
2-5
电源技术
