Broadband Split Ferrite Cores
For Ribbon & Flex Cables
Laird Techologies’ offers a selection of broadband “split” ribbon and flex cores for retrofit and post-
assembly operations. Similar in performance to one piece core designs, these split ferrite cores provide
excellent differential and common mode EMI suppression on flat cable assemblies. Lightweight,
inexpensive metal or plastic end clips and cases provide secure closure of the ferrite onto the flat cable.
PART NUMBERING SYSTEM EXAMPLE
8
Material Type
S
Product Code
00
Part Size Code
-0
Selected
Dimension Code
(Usually Length)
0*
Case or Clip
Code
0
Additional Part
Description
*0 =
*M =
*P =
*A =
No End Clip
Metal Clip
Plastic Clip
Hinged Case
Custom Parts with double sided mounting tape are available.
Figure #
on Page
19
2
1
3
1
1
1
1
1
*Available
End Clip
Types
NA
M, P
Hinged
Case
M, P
M
M, P
M
NA
DIMENSIONS
mm
(inches)
A
17.02
(0.670)
63.50
(2.500)
67.08
(2.641)
76.20
(3.000)
88.90
(3.500)
45.09
(1.775)
38.10
(1.500)
21.00
(0.827)
Part
Number
28S0670-000
28S2001-0*0
28S2001-2A2
28S2011-0*0
28S2012-0M0
28S2022-0*0
28S2023-0M0
28S2827-210
Typical Impedance ( Z ) in Ohms (
Ω
)
D
3.40
(0.134)
6.35
(0.250)
16.66
(0.656)
6.35
(0.250)
6.48
(0.255)
6.35
(0.250)
6.35
(0.250)
3.99
(0.157)
B
12.50
(0.492)
52.07
(2.050)
53.75
(2.116)
65.28
(2.570)
78.23
(3.080)
34.42
(1.355)
26.67
(1.050)
17.00
(0.669)
C*
14.99
(0.590)
28.58
(1.125)
27.53
(1.084)
28.58
(1.125)
28.58
(1.125)
28.58
(1.125)
25.40
(1.000)
12.01
(0.473)
E
0.51
(0.020)
0.84
(0.033)
1.91
(0.075)
0.84
(0.033)
0.84
(0.033)
0.84
(0.033)
0.84
(0.033)
0.94
(0.037)
@ MHz
60
100
80
100
80
100
115
43
@ 100 MHz @ 00 MHz
150
280
230
280
240
250
250
120
310
590
480
600
630
550
520
270
** The “D” & “E” dimensions for 28S, split, two piece cores must be
doubled for total assembled dimensions.
“D” & “E” dimensions shown
for hinged case parts are for a complete assemby.
*Broadband ( 28 ) ribbon and flex cable cores are sorted by
slot width on page 20 and sorted by impedance on page 21.
(side view)
Plastic Clip Diagram
Metal Clip Diagram
18
Split Ferrite Cores for Ribbon & Flex Cables
** To determine total inside slot gap (I.D.) of an assembled split ferrite ribbon core, multiply the “E”
dimension by 2. Both the “D” and “E” dimensions must be doubled for assembled core dimensions.
B
E
D
A
E
B
D
A
C
C
Figure 1
Figure
E
A
D
B
C
Figure
Part #28S2001-2A2 split ferrite core assembly with hinged black plastic case
Split ferrite cores for flat / ribbon cables are sold as single sides. It is necessary to order
two sides to form one set. [Except 28S2001-2A2 (Figure 3) which is sold assembled]
Plastic Clip Assemblies:
To specify one core side and one white plastic clip together, replace the second ferrite core part number character
after the dash with the letter “P” (example: 28S2022-0P0). One complete assembly of two ferrite core sides (28 material) with two plastic clips
would be specified as follows:
2 of part # 28S2022-0P0. Attachment ears are standard.
Metal Clip Assemblies:
To specify one core side and one metal clip together, replace the second ferrite core part number character after the
dash with the letter “M” (example: 28S2022-0M0). One complete assembly of two ferrite cores (28 material) with two metal clips would be
specified as follows:
2 of part # 28S2022-0M0
Clips for Bulk Shipment:
To order white plastic end clips (with attachment ears) separately in bulk, specify part number ASSE001-2. To order metal
end clips separately in bulk, specify part number ASSE017-2. No standard clips are available for 28S2827-210.
Split Core with white Plastic Clips
Split Core with Metal Clips
visit
www.lairdtech.com
for product additions and more product details
19
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