28A2738-0A2 Laird Technologies, 28A2738-0A2 Datasheet - Page 21

• Manufacturer Part Number: 28A2738-0A2
• Description: FERRITE EMI SPLIT/SNAP-ON CORE
• Manufacturer: Laird Technologies
• Series: 28Ar
• Type: Core-Splitr

Specifications of 28A2738-0A2

• Filter Type: Round Cable, Snap On
• Shape: Cylindrical
• Frequency: 100MHz
• Impedance: 233 Ohm
• Package / Case: 19.70mm O.D. x 9.00mm I.D. x 35.10mm L
• Test Frequency: 100 MHz
• Product: Clamp-On Ferrite Suppressors
• Termination Style: Cable Snap
• Diameter, Cable: 0.315 "
• Impedance, At 100 Mhz: 233 Ohms
• Impedance, At 25 Mhz: 109 Ohms
• Impedance, At 300 Mhz: 366 Ohms
• Material, Core: 28
• Special Features: Black Plastic Snap-On Case
• Termination: Cable
• Dimensions: 19.7 mm Dia. x 35.1 mm L
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 240-2603

www.lairdtech.com
FERRITE EMI CABLE CORES
BROADBAND FERRITE EMI CORES
FOR RIBBON & FLEX CABLES
** 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 assembly.
PLASTIC CLIP DIAGRAM
Laird Techologies offers a selection of broadband “split” ribbon and flex cores for retrofit and post-assembly operations. Simi-
lar 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
28S2012-0M0
28S2023-0M0
28S0670-000
28S2001-0*0
28S2001-2A2
28S2011-0*0
28S2022-0*0
28S2827-210
Material
NUMBER
Type
28
PART
Product
Code
S
page
# on
Fig
22
2
1
3
1
1
1
1
1
Part Size
0670
*Available
Code
Hinged Case
End Clip
Types
M, P
M, P
M, P
NA
NA
M
M
Dimension Code
(Usually Length)
(0.670)
(2.500)
(2.641)
(3.000)
(3.500)
(1.775)
(1.500)
(0.827)
17.02
63.50
67.08
76.20
88.90
45.09
38.10
21.00
Selected
A
-0
DIMENSIONS mm (inches)
(0.492)
(2.050)
(2.116)
(2.570)
(3.080)
(1.355)
(1.050)
(0.669)
12.50
52.07
53.75
65.28
78.23
34.42
26.67
17.00
B
Case or Clip
(0.590)
(1.125)
(1.084)
(1.125)
(1.125)
(1.125)
(1.000)
(0.473)
14.99
28.58
27.53
28.58
28.58
28.58
25.40
12.01
Code
C*
0*
(0.134)
(0.250)
(0.656)
(0.250)
(0.255)
(0.250)
(0.250)
(0.157)
16.66
3.40
6.35
6.35
6.48
6.35
6.35
3.99
D
Additional Part
Description
(0.020)
(0.033)
(0.075)
(0.033)
(0.033)
(0.033)
(0.033)
(0.037)
0.51
0.84
1.91
0.84
0.84
0.84
0.84
0.94
E
0
METAL CLIP DIAGRAM
@ 25
MHz
100
100
100
115
60
80
80
43
Typical Impedance
(Z) in Ohms (Ω)
(side view)
*
*
*
*
0
M
P
A
@ 100
MHz
= No End Clip
= Plastic Clip
= Hinged Case
150
280
230
280
240
250
250
120
= Metal Clip
@ 300
MHz
310
590
480
600
630
550
520
270
Custom parts
with double sided
mounting tape
and hinged case
are available.
*Broadband
(28) ribbon and
flex cable cores
are sorted by
slot width on
pages 23 & 24
and sorted by
impedance on
pages 25 & 26.
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