Johanson Dielectrics, Inc. • 15191 Bledsoe St. • Sylmar CA 91342 • Tel 818.364.9800
X2Y
®
EMI FILTER CAPACITOR SPICE MODEL
Rev: 05/21/2002
Dual-Line Application
C1 = C2 = Cap, C3 = C1 /2.
L1 = L2 = ESL, L3 = 2 x L1
R1 = R2 = ESR, R3 = 2 x R1.
"A"and "B"are "through" traces.
The X2Y EMI Filter Capacitor will not
limit the current capacity of the trace.
Part Number
500X43W474MV4
250X41W334MV4
500X18W104MV4
500X15W683MV4
500X15W103MV4
500X14W272MV4
Vdc
50
25
50
50
50
50
Size
1812
1210
1206
0805
0805
0603
Dielectric
X7R
X7R
X7R
X7R
X7R
X7R
Cap
470 nF
330 nF
100 nF
68 nF
10 nF
2.7 nF
ESL(2)
167 pH
122 pH
82 pH
100 pH
292 pH
114 pH
ESR(2)
30 mOhms
22 mOhms
90 mOhms
96 mOhms
282 mOhms
234 mOhms
SRF
18 Mhz
25 Mhz
52 Mhz
61 Mhz
93 Mhz
293 Mhz
Note (1): The simple schematic represents a "worst case" Spice model. Beyond the self-resonant frequency (SRF) each
S21 plot shows 4 to 9 dB better performance compared with calculations predicted using the simple series model.
Note (2): Preliminary S21 data,obtained using an Agilent 8753E Network Analyzer and an ICM fixture,was used to calculate
ESL and ESR.
In general,when the X2Y EMI Filter Capacitor is soldered to circuit traces, both the ESL and ESR will be approximately
15%less than the values show. All S21 insertion loss data was obtained with both X2Y capacitors referenced to ground,as
shown on the next page.
www.johanson dielectrics.com
1 of 5
Johanson Dielectrics, Inc. • 15191 Bledsoe St. • Sylmar CA 91342 • Tel 818.364.9800
X2Y
®
EMI FILTER CAPACITOR SPICE MODEL
Rev: 05/21/2002
Thru-Line Application
C1 + C2 = Cap
L1/2 = L2/2 = ESL
R1/2 = R2/2 = ESR
"A" is a "through" trace.
The X2Y EMI Filter Capacitor will not
limit the current capacity of the trace.
Part Number
500X43W474MV4
250X41W334MV4
500X18W104MV4
500X15W683MV4
500X15W103MV4
500X14W272MV4
Vdc
50
25
50
50
50
50
Size
1812
1210
1210
0805
0805
0603
Dielectric
X7R
X7R
X7R
X7R
X7R
X7R
Cap
940 nF
660 nF
200 nF
136 nF
20 nF
5.2 nF
ESL(2)
83 pH
61 pH
46 pH
50 pH
146 pH
57 pH
ESR(2)
15 mOhms
11 mOhms
45 mOhms
48 mOhms
141 mOhms
117 mOhms
SRF
18 MHz
25 MHz
52 MHz
61 MHz
93 MHz
293 MHz
Note (1): The simple schematic represents a "worst case" Spice model. Beyond the self-resonant frequency (SRF) each
S21 plot shows 4 to 9 dB better performance compared with calculations predicted using the simple series model.
Note (2): Preliminary S21 data,obtained using an Agilent 8753E Network Analyzer and an ICM fixture, was used to calcu-
late ESL and ESR.
In general, when the X2Y EMI Filter Capacitor is soldered to circuit traces, both the ESL and ESR will be approximately
15% less than the values show. All S21 insertion loss data was obtained with both X2Y capacitors referenced to ground,
as shown on this page.
www.johanson dielectrics.com
2
Johanson Dielectrics, Inc. • 15191 Bledsoe St. • Sylmar CA 91342 • Tel 818.364.9800
Part Number
500X14W272MV4
Vdc
50
Size
0603
Dielectric
X7R
Cap
5.2 nF
ESL(2)
57 pH
ESR(2)
117 mOhms
SRF
293 MHz
(3)
Part Number
500X15W104MV4
Vdc
50
Size
0805
Dielectric
X7R
Cap
20 nF
ESL(2)
146 pH
ESR(2)
141 mOhms
SRF
93 MHz
www.johanson dielectrics.com
3 of 5
Johanson Dielectrics, Inc. • 15191 Bledsoe St. • Sylmar CA 91342 • Tel 818.364.9800
Part Number
500X18W104MV4
Vdc
50
Size
1206
Dielectric
X7R
Cap
200 nF
ESL(2)
46 pH
ESR(2)
45 mOhms
SRF
52 MHz
Part Number
500X41W334MV4
Vdc
25
Size
1210
Dielectric
X7R
Cap
660 nF
ESL(2)
61 pH
ESR(2)
11 mOhms
SRF
25 Mhz
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4 of 5
Johanson Dielectrics, Inc. • 15191 Bledsoe St. • Sylmar CA 91342 • Tel 818.364.9800
Part Number
500X43W474MV4
Vdc
50
Size
1812
Dielectric
X7R
Cap
940 nF
ESL(2)
83 pH
ESR(2)
15 mOhms
SRF
18 MHz
www.johanson dielectrics.com
5 of 5