Datasheet

108
FERROX CUBE
www.ferroxcube.com
EMI-suppression products
BDS3/1.8/5.3-3S1
abc
5.3 ± 0.35 3.05 ± 0.15 1.8 max
|Z| typ = 28 Ω (10 MHz) 1)
BDS3/1.8/5.3-4S2
abc
5.3 ± 0.35 3.05 ± 0.15
1.8 max
|Z| typ = 38 Ω (100 MHz) 1)
BDS3/3/4.6-3S1
abc
4.6 ± 0.3 3.05 ± 0.15 3 max
|Z| typ = 45 Ω (10 MHz) 1)
BDS3/3/4.6-4S2
abc
4.6 ± 0.3 3.05 ± 0.15
3 max
|Z| typ = 50 Ω (100 MHz) 1)
BDS3/3/8.9-3S1
abc
8.9 ± 0.35 3.05 ± 0.15 3 max
|Z| typ = 80 Ω (10 MHz) 2)
BDS4.6/3/8.9-4S2
abc
8.9 ± 0.35 4.6 ± 0.3
3 max
|Z| typ = 100 Ω (100 MHz) 2)
Our range of SMD beads replace the well known beads on wire
in applications where SMD components are required.
They consist of a rectangular ferrite body and a lenght of fl at
copper wire, which is inserted through the ferrite and bent
around to form two solder pads. The wire is presoldered and
complies with solderability test TA (method 1) in
IEC 60068-2-58.
Taping method IEC 60286-3, EIA 481-1 and 481-2.
a
1.33
±0.2
1.27
±0.07
b
>1.2
3.04
max
5.6
±0.2
0.2
CMS2-5.6/3/4.8-4S2
a = 4.75 ± 0.3 and b > 1.1
|Z| typ = 35 Ω (100 MHz)
CMS2-5.6/3/8.9-4S2
a = 8.9 − 0.5 and b > 5
|Z| typ = 60 Ω (100 MHz)
In SMD Common mode chokes 2 or 4 conductors within a
single soft-ferrite block are connected along their lengths by an
air gap. Common-mode signals - interference signals passing
in the same direction along the input and output channels of a
device (an IC for instance) - reinforce the magnetic fl ux around
both conductors, and are therefore attenuated. In contrast, the
wanted signal passing along the input and output channels
cancel the fl ux around the conductors and therefore passes
unattenuated.
ab
>1.2
3.04
max
0.2
1.33
±0.2
1.27
±0.07
10.8
±0.3
CMS4-11/3/4.8-4S2
a = 4.75 ± 0.3 and b > 1.1
inner channel |Z| typ = 23 Ω (100 MHz)
outer channel |Z| typ = 30 Ω (100 MHz)
CMS4-11/3/8.9-4S2
a = 8.9 − 0.5 and b > 5
inner channel
|Z| typ = 45 Ω (100 MHz)
outer channel
|Z| typ = 60 Ω (100 MHz)
The wire is presoldered and complies with solderability test TA
(method 1) in IEC 60068-2-58.
Taping method IEC 60286-3, EIA 481-1-A and 481-2.
SMD beads SMD common mode chokes
b
c
a
1) DC resistance < 0.6 mΩ
2) DC resistance < 1.0 mΩ