Cost effective EMI suppression : 4S2F

4S2F
Cost Effective
EMI Suppression
Wide-band EMI
suppression
material specified
on impedance and
optimized for
frequencies from
30 to 1000 MHz.
ERROXCUBE is a member of the Yageo Group,
F
which is among the world's strongest suppliers of high
quality passive components. As a leading supplier of
ferrite components, FERROXCUBE has manufacturing
operations, sales offices, and customer service centers
all over the world.
We supply one of the broadest ranges of highquality, innovative products and place strong emphasis
on miniaturization of magnetic functions. Ferrite
components and accessories from FERROXCUBE
are used in a wide range of applications, from
telecommunications and computing electronics
through consumer electronic products to automotive.
FERROXCUBE offers a wide range of materials for
different frequency bands, thermal conditions and type
of noise to be suppressed, with complete data and
characterization to ease the design process. Materials
can be found in most appropriate shapes for its use:
toroids for common mode chokes, cable shields,
beads, rods and several ready to mount solutions
like SMD beads, through hole wideband chokes and
encapsulated cable shields.
Conducted interference through cables
can now be suppressed at lower cost with
Ferroxcube’s new range of cable shields in
4S2F material. All the standard cable shielding
shapes are available in 4S2F with similar
performance to 4S2 such as tubular, round,
and flat.
Ferroxcube Designer Kit
There is also available a designer kit so that
you can test your several 4S2F alternatives in
your equipment (designer kit ordering code:
43270322191)
A cable shield is necessary to prevent
emission of electromagnetic waves from the
cable respectively to protect data and signal
conductors from external electromagnetic interference (EMI). Ferroxcube offers three types of
cable shields.
4S2F
The Cost Effective Alternative
for EMI Suppression
4S2F
Material Specifications
150
4S2F
Z
( )
100
50
0
1
10
10 2
f (MHz)
10 3
Fig. 1 Complex permeability as a function of
frequency
Fig. 2 Impedance as a function of frequency,
measured on a bead ø5xø2x10 mm
Fig. 3 Initial permeability as a function of
temperature
Fig. 4 Typical B-H loops
SYMBOL
CONDITION
VALUE
µi
25ºC; 10kHz; 0.25 mT
≈700
Bsat
25ºC; 10kHz; 1200A/m
100ºC; 10kHz; 1200A/m
≈290
≈170
mT
|Z| (¹)
25ºC; 30 MHz
25ºC; 300 MHz
≥50
≥85
Ω
DC, 25ºC
≈104
Ωm
Tc
≥120
ºC
Density
≈4800
kg/m3
ρ
UNIT
(1) Measured on a bead ø5xø2x10 mm.
3
Tubular cable shields
| Z typ |(2) (Ω) at
Dimensions
Type Number
D
d
L
25 MHz
CST9.5/4.8/4.8-4S2F
CST9.5/4.8/6.4-4S2F
9.5 ± 0.25
9.5 ± 0.25
4.75 ± 0.25
4.75 ± 0.25
4.8 ± 0.2
6.35 ± 0.35
18
23
35
50
CST9.5/4.8/9.5-4S2F
CST9.5/4.8/10-4S2F
CST9.5/4.8/13-4S2F
CST9.5/4.8/19-4S2F
9.5 ± 0.25
9.5 ± 0.25
9.5 ± 0.25
9.5 ± 0.25
4.75 ± 0.15
4.75 ± 0.15
4.75 ± 0.15
4.75 ± 0.15
9.5 ± 0.35
10.4 ± 0.25
12.7± 0.5
19.05 ±0.7
40
53
60
100
70
80
95
145
CST9.5/5.1/15-4S2F
CST9.7/5/5.1-4S2F
CST14/6.4/5.3-4S2F
CST14/6.4/10-4S2F
CST14/6.4/14-4S2F
CST14/6.4/15-4S2F
CST14/6.4/29-4S2F
CST14/7.3/29-4S2F
CST16/7.9/14-4S2F
9.5 ± 0.3
9.65 ± 0.25
14.3 ± 0.45
14.3 ± 0.45
14.3 ± 0.45
14.3 ± 0.45
14.3 ± 0.45
14.3 ± 0.45
16.25 ± 0.75
5.1 ± 0.15
5 ± 0.2
6.35 ± 0.25
6.35 ± 0.25
6.35 ± 0.25
6.35 ± 0.25
6.35 ± 0.25
7.25 ± 0.15
7.9 ± 0.25
14.5 ± 0.45
5.05 ±0.45
5.3 ±0.45
10.1±0.4
13.8 ±0.4
15 ±0.45
28.6 ±0.75
28.6 ±0.75
14.3 ±0.35
66
26
35
70
90
100
170
143
70
110
43
60
105
150
170
250
215
113
CST16/7.9/29-4S2F
CST17/9.5/13-4S2F
16.25 ± 0.75
17.45 ± 0.4
7.9 ± 0.25
9.5 ± 0.25
28.6 ±0.75
12.7 ±0.5
130
55
213
88
CST17/9.5/29-4S2F
CST19/10/15-4S2F
CST19/10/29-4S2F
CST26/13/21-4S2F
CST26/13/29-4S2F
CST29/19/7.5-4S2F
17.45 ± 0.35
19 - 0.65
19 - 0.65
25.9 ±0.75
25.9 ±0.75
29 ±0.75
9.53 ± 0.25
10.15 ± 0.25
10.15 ± 0.25
12.8 ±0.25
12.8 ±0.25
19 ±0.5
28.55 ± 0.75
14.65 - 0.75
28.6 ± 0.75
21.3±0.5
28.6 ±0.8
7.5 ±0.25
125
70
128
110
145
28
250
110
196
180
225
47
D
d
100 MHz
L
CBW153
Fig. 1 Tubular cable shield
Flat cable shields (split)
| Ztyp | ( 2 ) (Ω) at
Dimensions
Flat cable shields (split)
CSU45/6.4/29-4S2F
2a
45.1 ±0.75 34.4 ±0.7 28.6 ±0.7 6.35 ±0.25 0.85 ±0.2
96
225
CSU76/6.4/29-4S2F
2a
76.2 ±1.5
75
215
CLI-CSU6.4
2c
−
−
225
65.3 ±1.3 28.6 ±0.8 6.35 ±0.25 0.85 ±0.2
16.1
11.0
12.7
11.4
8.0
Flat cable shields in matching nylon cases
CSU45/6.4/29-4S2-EN
Nylon case
CSU76/6.4/29-4S2-EN
Nylon case
49.5
34.3
32.3
8.1
20
96
2b
49.5
34.3
32.3
8.1
20
−
−
2a+b
80.8
65.5
32.3
8.1
50.8
75
215
2b
80.8
65.5
32.3
8.1
50.8
−
−
D
D
C
2a+b
C
E
B
A
C
A B
E
A
handbook, halfpage
B
D
E
MFP074
a.
b.
Fig. 2 Outlines of flat cable shields (split) and accessories
4
c.
4S2F
Round cable shields (split)
| Z typ |(2) (Ω) at
Dimensions
Round cable shields
F
±0.25
6.6 ±0.3
28.6 ±0.8
7.5 ±0.15
−
165
275
F
±0.4
10.15 ±0.3
28.6 ±0.8
9.4 ±0.15
−
140
225
F
±0.5
13.05 ±0.3
28.6 ±0.8
12.8 ±0.25
−
155
250
F
±0.4
7.9 ±0.3
14.3 ±0.4
7.95 ±0.2
−
50
113
Round cable shields in matching nylon cases
−
−
−
−
−
−
−
−
A
E
A
B
C
C
D
B
CBW154
D
CBW155
Fig. 3 Shield (CSA) outline
Fig. 4 Nylon case
D
C
CE
A
B
A
B
CBW156
Fig. 5 Shield (CSC) outline
D
CBW157
Fig. 6 Nylon case
(2) Minimum guaranteed impedance is |Z|typ–20%.
5
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© Ferroxcube International Holding B.V. 2014
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Printed in Poland
Document order number: FXC 100 00005
Date of release: May 2014