0805CG100C9B300 [YAGEO]

Ceramic Capacitor, Multilayer, Ceramic, 50V, 2.5% +Tol, 2.5% -Tol, C0G, 30ppm/Cel TC, 0.00001uF, Surface Mount, 0805, CHIP;
0805CG100C9B300
型号: 0805CG100C9B300
厂家: YAGEO CORPORATION    YAGEO CORPORATION
描述:

Ceramic Capacitor, Multilayer, Ceramic, 50V, 2.5% +Tol, 2.5% -Tol, C0G, 30ppm/Cel TC, 0.00001uF, Surface Mount, 0805, CHIP

电容器
文件: 总15页 (文件大小:867K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
DISCRETE CERAMICS  
DATA SHEET  
Class 1, NP0 50/100/200/500 V  
Noble Metal Electrode  
Surface mount ceramic  
multilayer capacitors  
Product specification  
2000 Sep 11  
Supersedes data of 24th May 2000  
Phycomp  
Product specification  
Surface mount ceramic  
multilayer capacitors  
Class 1, NP0 50/100/200/500 V  
Noble Metal Electrode  
FEATURES  
QUICK REFERENCE DATA  
Seven standard sizes  
DESCRIPTION  
VALUE  
High capacitance per unit volume  
Rated voltage UR (DC)  
50 V, 100 V, 200 V and 500 V (IEC)  
Supplied in tape on reel or in bulk  
case (case sizes 0402, 0603 and  
0805 only)  
Capacitance range (E12 series);  
note 1:  
50 V; note 2  
100 V  
0.47 pF to 47000 pF  
10 pF to 22 nF  
For high frequency applications  
NiSn terminations.  
200 V  
10 pF to 5600 pF  
10 pF to 3300 pF  
500 V  
APPLICATIONS  
Tolerance on capacitance:  
C 10 pF  
Consumer electronics  
Telecommunications  
Automotive  
5%; 2%  
C < 10 pF  
0.5 pF; 0.25 pF  
Test voltage (DC) for 1 minute:  
50 V and 100 V  
200 V  
2.5 × UR  
3 × UR  
2 × UR  
Data processing.  
500 V  
DESCRIPTION  
Sectional specifications  
IEC 60384-10, second edition 1989-04;  
also based on CECC 32 100  
The capacitor consists of a  
rectangular block of ceramic dielectric  
in which a number of interleaved  
precious metal electrodes are  
contained. This structure gives rise to  
a high capacitance per unit volume.  
Detailed specification  
based on CECC 32 101-801  
55/125/56  
Climatic category (IEC 60068)  
Notes  
1. Other values below 10 pF and non E12 series are available on request.  
2. Also applicable for applications up to 63 V.  
The inner electrodes areconnected to  
the two terminations, either by silver  
palladium (AgPd) alloy in the ratio  
65 : 35, or silver dipped with a barrier  
layer of plated nickel and finally  
covered with a layer of plated tin  
(NiSn). A cross section of the  
terminations  
structure is shown in Fig.1.  
electrodes  
MLB457  
ceramic material  
Fig.1 Construction of a ceramic multilayer capacitor.  
2000 Sep 11  
2
Phycomp  
Product specification  
Surface mount ceramic  
multilayer capacitors  
Class 1, NP0 50/100/200/500 V  
Noble Metal Electrode  
MECHANICAL DATA  
W
T
L
L
L
L
3
2
4
1
MBB211  
For dimensions see Table 1.  
Fig.2 Component outline.  
Physical dimensions  
Table 1 Capacitor dimensions  
T
L2 and L3  
L4  
MIN.  
CASE SIZE  
L1  
W
MIN.  
MAX.  
MIN.  
MAX.  
Dimensions in millimetres  
0402  
0603  
0805  
1206  
1210  
1812  
1.0 0.05  
1.6 0.10  
2.0 0.10  
3.2 0.15  
3.2 0.20  
4.5 0.20  
0.5 0.05  
0.8 0.07  
1.25 0.10  
1.6 0.15  
2.5 0.20  
3.2 0.20  
0.45  
0.73  
0.50  
0.50  
0.50  
0.50  
0.55  
0.87  
1.35  
1.75  
1.80  
1.80  
0.20  
0.25  
0.25  
0.25  
0.25  
0.25  
0.30  
0.65  
0.75  
0.75  
0.75  
0.75  
0.40  
0.40  
0.55  
1.40  
1.40  
2.20  
Dimensions in inches  
0402  
0603  
0805  
1206  
1210  
1812  
0.040 0.002  
0.020 0.002  
0.032 0.003  
0.049 0.004  
0.063 0.006  
0.098 0.008  
0.126 0.008  
0.018  
0.029  
0.020  
0.020  
0.020  
0.020  
0.022  
0.035  
0.053  
0.069  
0.072  
0.072  
0.008  
0.010  
0.010  
0.010  
0.010  
0.010  
0.012  
0.026  
0.030  
0.030  
0.030  
0.030  
0.016  
0.016  
0.022  
0.056  
0.056  
0.088  
0.063 0.004  
0.079 0.004  
0.126 0.006  
0.126 0.008  
0.177 0.008  
2000 Sep 11  
3
Phycomp  
Product specification  
Surface mount ceramic  
Class 1, NP0 50 V  
multilayer capacitors  
Noble Metal Electrode  
SELECTION CHART FOR 50 V  
LAST  
50 V  
C
THREE DIGITS  
(pF)  
0402  
0603  
0805  
1206  
1210  
1812  
OF 12NC  
0.47  
0.56  
0.68  
0.82  
1.0  
1.2  
1.5  
1.8  
2.2  
2.7  
3.3  
3.9  
4.7  
5.6  
6.8  
8.2  
477  
567  
687  
827  
108  
128  
158  
188  
228  
278  
338  
398  
478  
568  
688  
828  
109  
129  
159  
189  
229  
279  
339  
399  
479  
569  
689  
829  
101  
121  
151  
181  
221  
271  
331  
391  
471  
561  
681  
821  
102  
122  
152  
182  
222  
272  
332  
10  
0.5 0.05  
12  
15  
18  
0.8 0.07  
22  
27  
33  
0.6 0.1  
39  
47  
56  
0.6 0.1  
68  
82  
100  
120  
150  
180  
220  
270  
330  
390  
470  
560  
680  
820  
1000  
1200  
1500  
1800  
2200  
2700  
3300  
0.5 to 1.0  
0.85 0.1  
1.25 0.1  
0.5 to 1.0  
3900  
4700  
392  
472  
562  
682  
822  
103  
123  
0.85 0.1  
1.15 0.1  
5600  
6800  
8200  
Values in shaded cells indicate thickness classification.  
10000  
12000  
2000 Sep 11  
4
Phycomp  
Product specification  
Surface mount ceramic  
Class 1, NP0 50 V  
multilayer capacitors  
Noble Metal Electrode  
LAST  
50 V  
C
THREE DIGITS  
(pF)  
0402  
0603  
0805  
1206  
1210  
1812  
OF 12NC  
15000  
18000  
22000  
27000  
33000  
39000  
47000  
153  
183  
223  
273  
333  
393  
473  
0.5 to 1.0  
0.9 to 1.3  
Thickness classification and packing quantities  
8 mm TAPE WIDTH  
12 mm TAPE WIDTH  
QUANTITY PER REEL  
QUANTITY  
PER BULK CASE  
QUANTITY PER REEL  
180 mm; 7" 330 mm; 13"  
PAPER BLISTER  
THICKNESS  
CLASSIFICATION  
(mm)  
180 mm; 7" BLISTER  
PAPER  
BLISTER  
1812  
0402  
0603  
0805  
0.5 0.05  
0.6 0.1  
10000  
4000  
4000  
4000  
50000  
50000  
10000  
8000  
20000  
0.85 0.1  
0.5 to 1.0  
0.8 0.07  
0.9 to 1.3  
1.15 0.1  
1.25 0.1  
15000  
4000  
3000  
3000  
3000  
10000  
10000  
10000  
10000  
2000  
15000  
15000  
1500  
5000  
2000 Sep 11  
5
Phycomp  
Product specification  
Surface mount ceramic  
Class 1, NP0 50 V  
multilayer capacitors  
Noble Metal Electrode  
ORDERING INFORMATION FOR 50 V  
Components may be ordered by using either a simple 15-digit clear text code or Phycomp’s unique 12NC.  
Clear text code  
EXAMPLE: 0805CG102J9B200  
SIZE  
CODE  
TEMP.  
CHAR.  
CAPACITANCE  
TOL.  
VOLTAGE TERMINATION  
PACKING  
MARKING  
SERIES  
0402  
CG = NP0 102 = 1000 pF;  
the third digit  
signifies the  
multiplying factor:  
8 = × 0.01  
C = 0.25 pF 9 = 50 V  
D = 0.5 pF  
B = NiSn  
2 = 180 mm; 7" paper  
0 = no marking  
0 = conv.  
ceramic  
0603  
0805  
1206  
1210  
1812  
3 = 330 mm; 13" paper 2 = 2-character  
marking in North  
America only  
G = 2%  
B = 180 mm; 7" blister  
J = 5%  
F = 330 mm; 13" blister  
P = bulk case  
9 = × 0.1  
0 = × 1  
1 = × 10  
2 = × 100  
3 = × 1000  
Ordering code 12NC  
2 2 X X 8 6 X X X X X X  
(1)  
Carrier type  
Capacitance value  
22 blister  
38 paper  
54 bulk  
Size  
9
7
1
3
2
5
6
0402  
0603  
0805  
1206  
1210  
1812  
2220 (AgPd only)  
Tolerance  
NiSn terminations  
4
0.25 pF for C = 5.6 to 8.2 pF  
2% for C 10 pF  
0.25 pF for C = 0.47 to 4.7 pF  
0.5 pF for C = 5.6 to 8.2 pF  
5% for C 10 pF  
5
(2)  
Packaging  
1
7
4
reel: 180 mm; 7"  
AgPd terminations  
reel: 330 mm; 13"  
1
2
2% for C 10 pF  
5% for C 10 pF  
CCA622  
bulk case  
(1) Refer to chapter “Selection chart for 50 V”.  
(2) Quantity on reel depends on thickness classification, see section “Thickness classification and packing quantities”.  
2000 Sep 11  
6
Phycomp  
Product specification  
Surface mount ceramic  
Class 1, NP0 100 V  
multilayer capacitors  
Noble Metal Electrode  
SELECTION CHART FOR 100 V  
LAST  
100 V  
1206  
C
TWO DIGITS  
(pF)  
0603  
0805  
1210  
1812  
OF 12NC  
10  
12  
23  
24  
25  
26  
27  
28  
29  
31  
32  
33  
34  
35  
36  
37  
38  
39  
41  
42  
43  
44  
45  
46  
47  
48  
49  
51  
52  
53  
54  
55  
56  
57  
58  
59  
61  
62  
63  
64  
65  
66  
67  
68  
69  
71  
72  
15  
18  
22  
27  
33  
39  
47  
56  
68  
82  
0.8 0.07  
100  
120  
0.6 0.1  
150  
180  
220  
0.6 0.1  
270  
330  
390  
470  
560  
680  
820  
1000  
1200  
1500  
1800  
2200  
2700  
3300  
3900  
4700  
5600  
6800  
8200  
10000  
12000  
15000  
18000  
22000  
27000  
33000  
39000  
47000  
0.85 0.1  
1.25 0.1  
0.85 0.1  
1.15 0.1  
0.5 to 1.0  
Values in shaded cells indicate thickness classification.  
0.5 to 1.0  
0.9 to 1.3  
2000 Sep 11  
7
Phycomp  
Product specification  
Surface mount ceramic  
Class 1, NP0 100 V  
multilayer capacitors  
Noble Metal Electrode  
Thickness classification and packing quantities  
8 mm TAPE WIDTH  
QUANTITY PER REEL  
12 mm TAPE WIDTH  
QUANTITY  
PER BULK CASE  
QUANTITY PER REEL  
180 mm; 7" BLISTER  
1812  
THICKNESS  
CLASSIFICATION  
(mm)  
180 mm; 7" 330 mm; 13"  
PAPER  
BLISTER  
PAPER  
BLISTER  
0603  
0805  
0.6 0.1  
4000  
20000  
10000  
0.85 0.1  
0.5 to 1.0  
0.8 0.07  
0.9 to 1.3  
1.15 0.1  
1.25 0.1  
4000  
15000  
2000  
1500  
8000  
4000  
3000  
3000  
3000  
10000  
10000  
10000  
10000  
4000  
15000  
15000  
5000  
ORDERING INFORMATION FOR 100 V  
Components may be ordered by using either a simple 15-digit clear text code or Phycomps unique 12NC.  
Clear text code  
EXAMPLE: 0805CG102G0B200  
TEMP.  
SIZE CODE  
CAPACITANCE  
TOL.  
VOLTAGE TERMINATION  
0 = 100 V B = NiSn  
PACKING  
MARKING  
SERIES  
CHAR.  
0603  
0805  
1206  
1210  
1812  
CG = NP0 102 = 1000 pF;  
the third digit  
signifies the  
G = 2%  
J = 5%  
2 = 180 mm; 7" paper  
3 = 330 mm; 13" paper  
B = 180 mm; 7" blister  
F = 330 mm; 13" blister  
P = bulk case  
0 = no marking  
0 = conv.  
ceramic  
multiplying factor:  
0 = × 1  
1 = × 10  
2 = × 100  
3 = × 1000  
Ordering code 12NC  
2 2 X X X X X X 1 X X X  
(1)  
Carrier type  
Capacitance value  
Tolerance  
22 blister  
38 paper  
54 bulk  
Rated voltage - Termination  
60 100 V; NiSn  
4
5
2% for C 10 pF  
5% for C 10 pF  
Size  
6
0
1
2
4
0603  
0805  
1206  
1210  
1812  
(2)  
Packaging  
1
5
4
reel: 180 mm; 7"  
reel: 330 mm; 13"  
CCA623  
bulk case  
(1) Refer to chapter Selection chart for 100 V.  
(2) Quantity on reel depends on thickness classification, see section Thickness classification and packing quantities.  
2000 Sep 11  
8
Phycomp  
Product specification  
Surface mount ceramic  
multilayer capacitors  
Class 1, NP0 200 V and 500 V  
Noble Metal Electrode  
SELECTION CHART FOR 200 V AND 500 V  
LAST  
200 V  
500 V  
C
TWO DIGITS  
(pF)  
0805  
1206  
1210  
1812  
1206  
1210  
1812  
OF 12NC  
10  
12  
23  
24  
25  
26  
27  
28  
29  
31  
32  
33  
34  
35  
36  
37  
38  
39  
41  
42  
43  
44  
45  
46  
47  
48  
49  
51  
52  
53  
54  
55  
56  
57  
58  
59  
61  
62  
63  
15  
18  
22  
27  
33  
39  
47  
0.6 0.1  
0.6 0.1  
56  
68  
0.6 0.1  
82  
100  
120  
150  
180  
220  
270  
330  
390  
470  
560  
680  
820  
1000  
1200  
1500  
1800  
2200  
2700  
3300  
3900  
4700  
5600  
6800  
8200  
10000  
0.8 to 1.0  
0.85 0.1  
1.25 0.1  
0.85 0.1  
1.15 0.1  
0.85 0.1  
1.15 0.1  
0.9 to 1.3  
0.8 to 1.0  
0.9 to 1.3  
1.2 to 1.75  
0.9 to 1.3  
0.8 to 1.0  
0.9 to 1.3  
Values in shaded cells indicate thickness classification.  
Thickness classification and packing quantities  
8 mm TAPE WIDTH  
12 mm TAPE WIDTH  
QUANTITY  
PER BULK CASE  
QUANTITY PER REEL  
180 mm; 7" 330 mm; 13"  
PAPER BLISTER  
QUANTITY PER REEL  
180 mm; 7" BLISTER  
1812  
THICKNESS  
CLASSIFICATION  
(mm)  
PAPER  
BLISTER  
0805  
0.6 0.1  
4000  
20000  
10000  
0.85 0.1  
0.8 to 1.0  
0.9 to 1.3  
1.15 0.1  
1.25 0.1  
1.2 to 1.75  
4000  
15000  
8000  
4000  
3000  
3000  
3000  
2500  
10000  
10000  
10000  
10000  
7000  
2000  
1500  
5000  
1200  
2000 Sep 11  
9
Phycomp  
Product specification  
Surface mount ceramic  
multilayer capacitors  
Class 1, NP0 200 V and 500 V  
Noble Metal Electrode  
ORDERING INFORMATION FOR 200 V AND 500 V  
Components may be ordered by using either a simple 15-digit clear text code or Phycomps unique 12NC.  
Clear text code  
EXAMPLE: 1206CG102GBB200  
SIZE  
CODE  
TEMP.  
CHAR.  
CAPACITANCE  
TOL.  
VOLTAGE TERMINATION  
PACKING  
MARKING  
SERIES  
0805  
1206  
1210  
1812  
CG = NP0 102 = 1000 pF;  
the third digit  
signifies the  
G = 2%  
J = 5%  
B = 200 V B = NiSn  
D = 500 V  
2 = 180 mm; 7" paper  
3 = 330 mm; 13" paper  
B = 180 mm; 7" blister  
F = 330 mm; 13" blister  
P = bulk case  
0 = no marking  
0 = conv.  
ceramic  
multiplying factor:  
0 = × 1  
1 = × 10  
2 = × 100  
3 = × 1000  
Ordering code 12NC  
2 2 X X X X X X 1 X X X  
(1)  
Carrier type  
Capacitance value  
22 blister  
38 paper  
54 bulk  
Tolerance  
Rated voltage - Termination  
93 200 V; NiSn  
97 500 V; NiSn  
4
5
2%  
5%  
Size  
(2)  
Packaging  
0
1
2
4
0805  
1206  
1210  
1812  
1
5
4
reel: 180 mm; 7"  
reel: 330 mm; 13"  
bulk case  
CCA624  
(1) Refer to chapter Selection chart for 200 V and 500 V.  
(2) Quantity on reel depends on thickness classification, see section Thickness classification and packing quantities.  
2000 Sep 11  
10  
Phycomp  
Product specification  
Surface mount ceramic  
multilayer capacitors  
Class 1, NP0 50/100/200/500 V  
Noble Metal Electrode  
ELECTRICAL CHARACTERISTICS  
Class 1 capacitors; NP0 dielectric; NiSn terminations  
Unless otherwise stated all electrical values apply at an ambient temperature of 20 1 °C, an atmospheric pressure of  
86 to 106 kPa, and a relative humidity of 63 to 67%.  
DESCRIPTION  
VALUE  
Capacitance range (E12 series); note 1:  
50 V  
0.47 pF to 47000 pF  
10 pF to 22 nF  
100 V  
200 V  
10 pF to 5600 pF  
10 pF to 3300 pF  
500 V  
Tolerance on capacitance after 1000 hours:  
C 10 pF  
5 pF C < 10 pF  
C < 5 pF  
5%; 2%  
0.5 pF, 0.25 pF  
0.25 pF  
Tan δ; note 1:  
+ 0.7 × 104 or 30 × 104 , whichever is smallest  
3
C
10  
-----  
C < 10 pF  
C 10 pF  
10 × 104  
Insulation resistance after 1 minute at UR (DC)  
Rins > 100 GΩ  
Temperature coefficient:  
C < 10 pF  
(0 150) × 106/K; note 2  
(0 30) × 106/K; note 2  
not applicable  
C 10 pF  
Ageing  
Notes  
1. Measured at 1 V, 1 MHz for C 1000 pF and 1 V, 1 kHz for C > 1000 pF, using a four-gauge method.  
2. For sizes 0402 and 0603 all capacitance values from 0.47 pF to 150 pF have a temperature coefficient of  
(0 30) × 106/K.  
2000 Sep 11  
11  
Phycomp  
Product specification  
Surface mount ceramic  
multilayer capacitors  
Class 1, NP0 50/100/200/500 V  
Noble Metal Electrode  
MEA608  
MEA607  
10  
handbook, halfpage  
tan δ  
(x 10  
40  
4
)
TC  
6
(x10 /K)  
7.5  
20  
0
5
2.5  
0
20  
40  
40  
0
40  
80  
120  
40  
0
40  
80  
120  
o
T ( C)  
o
T ( C)  
Sample limits (broken lines).  
Requirement levels (dotted lines).  
Fig.3 Typical temperature coefficient as  
a function of temperature.  
Fig.4 Typical tan δ as a function of temperature.  
MGA457 - 1  
MEA614  
1
15  
handbook, halfpage  
C  
C  
C
(%)  
C
(%)  
10  
5
0.5  
0
0
5  
0.5  
1  
10  
15  
0
10  
20  
30  
40  
50  
(V)  
0
250  
500  
(V)  
V
DC  
V
DC  
High voltage series.  
Fig.5 Typicalcapacitance changewith respect  
to the capacitance at 1 V as a function of  
DC voltage.  
Fig.6 Typicalcapacitance changewith respect  
to the capacitance at 1 V as a function of  
DC voltage.  
2000 Sep 11  
12  
Phycomp  
Product specification  
Surface mount ceramic  
multilayer capacitors  
Class 1, NP0 50/100/200/500 V  
Noble Metal Electrode  
CCA075  
MEA625  
3
104  
10  
IZI  
f
(
)
(MHz)  
10 pF  
2
10  
103  
102  
100 pF  
10  
1000 pF  
1
10  
1
1  
10  
2  
10  
2
3
102  
103  
104  
1
10  
10  
10  
1
10  
C (pF)  
f (MHz)  
Case size 0603: L = 0.6 nH (dotted line).  
Case sizes 0805, 1206 and 1210: L = 1 nH (solid line).  
Case sizes 1812 and 2220: L = 1.5 nH (broken line).  
Case sizes 0603 to 1210.  
Fig.7 Series resonance frequency  
as a function of capacitance.  
Fig.8 Typical impedance (Z)  
as a function of frequency.  
MEA628  
MEA629  
4
4
10  
10  
ESR  
ESR  
)
(m  
)
(m  
500  
MHz  
500  
MHz  
3
3
10  
10  
10  
10  
200  
MHz  
200  
MHz  
100  
MHz  
100  
MHz  
50  
MHz  
50  
MHz  
2
2
10  
10  
3
3
2
2
1
10  
10  
10  
1
10  
10  
10  
C (pF)  
C (pF)  
Case size 1206.  
Typical values (solid lines).  
Case sizes 0603 and 0805.  
Typical values (solid lines).  
Maximum values (broken lines).  
Measuring equipment HP4191A.  
Maximum values (broken lines).  
Measuring equipment HP4191A.  
For C > 1 nF, maximum value of ESR = 80 mmeasured at 50 MHz.  
Fig.9 Equivalent series resistance (ESR)  
as a function of capacitance.  
Fig.10 Equivalent series resistance (ESR)  
as a function of capacitance.  
2000 Sep 11  
13  
Phycomp  
Product specification  
Surface mount ceramic  
multilayer capacitors  
Class 1, NP0 50/100/200/500 V  
Noble Metal Electrode  
MEA630  
MEA631  
4
4
10  
10  
Q
Q
100  
MHz  
3
2
3
10  
10  
10  
500  
MHz  
200  
MHz  
50  
MHz  
500  
MHz  
200  
MHz  
100  
MHz  
50  
MHz  
2
10  
10  
10  
3
3
2
2
1
10  
10  
10  
1
10  
10  
10  
C (pF)  
C (pF)  
Case size 1206.  
Typical values (solid lines).  
Case sizes 0603 and 0805.  
Typical values (solid lines).  
Minimum values (broken lines).  
Measuring equipment HP4191A.  
Minimum values (broken lines).  
Measuring equipment HP4191A.  
For C > 1 nF, Qmin = 35 measured at 50 MHz.  
Fig.11 Quality factor (Q) as a function of  
the capacitance.  
Fig.12 Quality factor (Q) as a function of  
the capacitance.  
MGA458  
MGA459  
500  
500  
ESR  
(m)  
ESR  
(m)  
300  
300  
200  
200  
10 pF  
10 pF  
47 pF  
47 pF  
100  
100  
100 pF  
100 pF  
150 pF  
50  
50  
470 pF  
30  
20  
30  
20  
10  
50  
10  
50  
100  
200  
300  
500  
100  
200  
300  
500  
f (MHz)  
f (MHz)  
Case size 0805.  
Case size 1206.  
High voltage 200 V.  
High voltage 200 V.  
Fig.13 Typicalequivalent series resistance as  
a function of frequency.  
Fig.14 Typicalequivalent series resistance as  
a function of frequency.  
2000 Sep 11  
14  
Phycomp  
Product specification  
Surface mount ceramic  
multilayer capacitors  
Class 1, NP0 50/100/200/500 V  
Noble Metal Electrode  
MLB198  
500  
handbook, halfpage  
ESR  
(m)  
300  
200  
10 pF  
47 pF  
100  
C
ESR  
L
100 pF  
MEA609  
220 pF  
50  
30  
20  
10  
50  
100  
200  
300  
500  
f (MHz)  
C = capacitance.  
ESR = equivalent series resistance which is determined by the  
energy dissipation mechanisms (in the dielectric material as well  
as in the electrodes).  
Case size 1206.  
High voltage 500 V.  
L = equivalent series self-inductance.  
Fig.15 Typicalequivalent series resistance as  
a function of frequency.  
Fig.16 Equivalent series representation of a CMC.  
HIGH FREQUENCY BEHAVIOUR OF CERAMIC  
MULTILAYER CAPACITORS  
Because of the inductance L, associated with the CMC,  
there will be a frequency at which the inductive reactance  
will be equal to the reactance of the capacitor.  
Ceramic multilayer capacitors (CMC) are suitable for use  
at high frequencies. At frequencies below the series  
resonance frequency, the CMC can be represented by an  
equivalent circuit as shown in Fig.16.  
This is known as the series resonance frequency (SRF)  
and is given by:  
1
SRF =  
-------------------  
2π LC  
In general, the quantities C, ESR and L are frequency  
dependent. For most applications, C and L can be  
regarded as frequency independent below 1 GHz.  
At the SRF, the CMC will appear as a small resistor.  
The transmission loss through the CMC at this series  
resonance frequency will be low.  
The equivalent series self-inductance L is:  
Independent of the dielectric material.  
Using the values of C, L = 1 nH and the ESR at a specific  
frequency (f), two often used quantities can be derived.  
Dependent on the size of the capacitor, it increases with  
increasing length and decreases with increasing width  
or thickness of the product.  
The impedance (Z) is given by:  
1 (2πf)2LC  
Z =  
+ ESR  
------------------------------------  
The value of L is approximately:  
0.6 nH for case size 0603  
2jπfC  
The quality factor (Q) is given by:  
1 nH for case sizes 0805, 1206 and 1210  
1.5 nH for case sizes 1812.  
1 (2πf)2LC  
Q =  
--------------------------------------  
2πfESRC  
These figures are accurate to within 20%.  
2000 Sep 11  
15  

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