24
14th Edition
EMI Suppression Beads
Listed in ascending order of “B” dimension.
Fair-Rite offers a broad selection of EMI suppression beads with guaranteed impedance specifica-
tions over a wide frequency range.
• Beads with a “1” as the last digit of the part number
are not burnished, those with the last digit “2” are supplied
burnished to break the sharp edges.
• Beads can be supplied Parylene coated upon request.
The last digit of the Parylene coated part number is a “4”.
The minimum coating thickness for beads is
0.005mm
(.0002").
See page 159 for material characteristics of Parylene C.
• The “H” column gives for each bead size the calculated dc bias field in
oersted for 1 turn and 1 ampere direct current. The actual dc H field in
the application is this value of “H” times the actual NI (ampere - turn) product. For the effect of the dc bias on the impedance
of the bead material, see the graphs on pages 179-180, Figures 16-20.
• For typical impedance vs. frequency curves for these parts, see Figures 1-6.
• Beads are controlled for impedance limits only. They are tested for impedance with a single turn, using the Hewlett Packard
HP 4193A Vector Impedance Meter for beads in 73, 31, and 43 material and the HP 4191A RF Impedance Analyzer for
61 material beads.
• For larger size cores, please refer to our Round Cable EMI Suppression Cores section found on pages 94-97.
• For any EMI suppression bead requirement not listed in the catalog, please contact our customer service group for
availability and pricing.
• The EMI Suppression Bead Kit (part number 0199000019) contains a selection of these cores.
See page 92.
Dimensions
(Bold
numbers are in millimeters,
light numbers are nominal in inches.)
Part Number**
A
0.95 - 0.05
.036
1.0 - 0.05
.038
1.1 - 0.1
.041
1.1 - 0.1
.041
1.45 - 0.15
.054
1.45 - 0.15
.054
3.5±0.2
.138
3.5±0.2
.138
B
0.45+0.1
.020
0.45+0.15
.021
0.65+0.1
.028
0.65+0.1
.028
0.7+0.1
.029
0.7+0.1
.029
0.75+0.1
.031
0.75+0.1
.031
C*
3.8±0.2
.150
5.6±0.25
.220
4.1 - 0.3
.156
4.1 - 0.3
.156
2.3±0.15
.090
2.3±0.15
.090
4.45±0.35
.175
8.9±0.5
.350
Wt (g)
H (Oe)
10 MHz
Typical Impedance( )
25 MHz
100 MHz
1
250 MHz
2673901301
2673903301
2673004601
2643004601
2673004701
2643004701
2643004101
2643004201
.01
.01
.01
.01
.01
.01
.11
.22
6.0
5.7
4.7
4.7
4.0
4.0
2.6
2.6
16
24
12.5
24
35
19
12.5
31
12.5
17
12.5
48
97
26
70
140
**Bold part numbers designate preferred parts.
*This dimension may be modified to suit specific applications.
1
Guaranteed Z Min is Z Typ -20%
Fair-Rite Products Corp.
Phone: (888) FAIR RITE / (845) 895-2055
(888) 324-7748
P.O. Box J,One Commercial Row, Wallkill, NY 12589-0288
•
FAX: (888) FERRITE / (845) 895-2629 • www.fair-rite.com • E-Mail: ferrites@fair-rite.com
(888) 337-7483
Note: (914) Area Code has changed to (845).
14th Edition
25
EMI Suppression Beads
Listed in ascending order of “B” dimension.
Dimensions
(Bold
numbers are in millimeters,
light numbers are nominal in inches.)
Part Number**
A
1.22 - 0.13
.045
1.25 - 0.1
.047
1.95 - 0.25
.072
3.5±0.25
.138
1.42±0.05
.056
1.65±0.025
.065
2.1 - 0.15
.080
2.1 - 0.15
.080
2.13 - 0.1
.082
1.55 - 0.1
.059
1.95 - 0.2
.072
1.95 - 0.2
.072
2.0 - 0.15
.076
2.0 - 0.15
.076
2.0 - 0.15
.076
2.0 - 0.15
.076
3.5±0.2
.138
3.5±0.2
.138
3.5±0.2
.138
3.5±0.2
.138
3.5±0.2
.138
B
0.8+0.1
.033
0.8+0.1
.033
0.8+0.1
.033
0.8+0.1
.033
0.85+0.1
.034
0.85+0.1
.034
0.85+0.1
.034
0.85+0.1
.034
0.85+0.1
.034
0.95+0.15
.040
1.05+0.1
.043
1.05+0.1
.043
1.05+0.1
.043
1.05+0.1
.043
1.05+0.1
.043
1.05+0.1
.043
1.3±0.1
.051
1.3±0.1
.051
1.3±0.1
.051
1.3±0.1
.051
1.3±0.1
.051
C*
5.3 - 0.45
.200
3.8±0.2
.150
10.0 - 0.4
.384
2.7 - 0.45
.097
3.8±0.2
.150
3.68 - 0.25
.140
2.9 - 0.45
.105
2.9 - 0.45
.105
5.6±0.15
.220
4.2 - 0.25
.160
10.4±0.25
.410
10.4±0.25
.410
1.65 - 0.25
.060
1.65 - 0.25
.060
3.8±0.25
.150
3.8±0.25
.150
3.25±0.25
.128
3.25±0.25
.128
3.25±0.25
.128
6.0±0.25
.236
6.0±0.25
.236
Wt (g)
H (Oe)
10 MHz
Typical Impedance( )
25 MHz
100 MHz
1
250 MHz
2673030101
2673025301
2673010101
2643706001
2673025001
2643020501
2673004801
2643004801
2673028602
2673012401
2673002201
2643002201
2673000501
2643000501
2673000201
2643000201
2673000101
2643000101
2661000101
2673000301
2643000301
.01
.01
.08
.06
.02
.02
.03
.03
.09
.02
.08
.08
.01
.01
.03
.03
.10
.10
.10
.18
.18
4.1
4.0
3.3
2.5
3.6
3.4
3.1
3.1
2.7
3.3
2.9
2.9
2.8
2.8
2.8
2.8
2.0
2.0
2.0
2.0
2.0
14
10
55
21
15
77
26
45
12.5
20
17
31
20
28
18
31
31
11
38
50
19
55
34
58
7.5
12
9
22
18
27
16
31
25
35
26
40
27.5
43
44
62
46
60
**Bold part numbers designate preferred parts.
*This dimension may be modified to suit specific applications.
1
Guaranteed Z Min is Z Typ -20%
P.O. Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) FAIR RITE / (845) 895-2055
(888) 324-7748
Fair-Rite Products Corp.
•
FAX: (888) FERRITE / (845) 895-2629 • www.fair-rite.com • E-Mail: ferrites@fair-rite.com
(888) 337-7483
Note: (914) Area Code has changed to (845).
26
14th Edition
EMI Suppression Beads
Listed in ascending order of “B” dimension.
Dimensions
(Bold
numbers are in millimeters,
light numbers are nominal in inches.)
Part Number**
A
3.5±0.2
.138
3.5±0.2
.138
3.5±0.2
.138
3.5±0.2
.138
5.1±0.25
.200
5.1±0.25
.200
5.1±0.25
.200
5.1±0.25
.200
5.1±0.25
.200
5.1±0.25
.200
5.1±0.25
.200
5.1±0.25
.200
5.1±0.25
.200
3.5±0.2
.138
3.5±0.2
.138
2.85±0.1
.112
2.85±0.1
.112
2.85±0.1
.112
3.5±0.2
.138
3.55±0.15
.140
3.55±0.15
.140
B
1.3±0.1
.051
1.3±0.1
.051
1.3±0.1
.051
1.3±0.1
.051
1.45+0.25
.062
1.45+0.25
.062
1.45+0.25
.062
1.45+0.25
.062
1.45+0.25
.062
1.45+0.25
.062
1.45+0.25
.062
1.45+0.25
.062
1.45+0.25
.062
1.6±0.1
.063
1.6±0.1
.063
1.65+0.15
.068
1.65+0.15
.068
1.65+0.15
.068
1.65+0.25
.070
1.65+0.25
.070
1.65+0.25
.070
C*
6.0±0.25
.236
12.7±0.35
.500
12.7±0.35
.500
12.7±0.35
.500
3.4 - 0.45
.125
6.35±0.25
.250
6.35±0.25
.250
6.35±0.25
.250
11.1±0.35
.437
11.1±0.35
.437
11.1±0.35
.437
22.85±0.75
.900
22.85±0.75
.900
3.25±0.25
.128
6.0±0.25
.236
3.75±0.25
.147
6.65±0.25
.262
10.45±0.25
.410
4.05±0.25
.160
3.3 - 0.4
.122
3.3 - 0.4
.122
Wt (g)
H (Oe)
10 MHz
Typical Impedance( )
25 MHz
100 MHz
1
250 MHz
2661000301
2673000701
2643000701
2661000701
2643200101
2673022401
2643022401
2661022401
2673021801
2643021801
2661021801
2643023801
2661023801
2643001501
2643025601
2643023201
2673018001
2673004901
2643013801
2673001601
2643001601
.18
.38
.38
.38
.19
.38
.38
.38
.67
.67
.67
1.4
1.4
.10
.18
.06
.12
.18
.12
.09
.09
2.0
2.0
2.0
2.0
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.7
1.7
1.8
1.8
1.8
1.6
1.6
1.6
16
29
40
21
38
15
41
58
24
24
19
192
94
95
96
54
30
58
55
87
125
89
50
70
125
125
41
170
82
56
85
131
119
266
238
35
55
30
326
163
38
30
**Bold part numbers designate preferred parts.
*This dimension may be modified to suit specific applications.
1
Guaranteed Z Min is Z Typ -20%
Fair-Rite Products Corp.
Phone: (888) FAIR RITE / (845) 895-2055
(888) 324-7748
P.O. Box J,One Commercial Row, Wallkill, NY 12589-0288
•
FAX: (888) FERRITE / (845) 895-2629 • www.fair-rite.com • E-Mail: ferrites@fair-rite.com
(888) 337-7483
Note: (914) Area Code has changed to (845).
14th Edition
27
EMI Suppression Beads
Listed in ascending order of “B” dimension.
Dimensions
(Bold
numbers are in millimeters,
light numbers are nominal in inches.)
Part Number**
A
3.55±0.15
A
.140
4.1 - 0.25
.156
5.1±0.25
.200
7.5±0.25
.296
7.5±0.25
.296
7.6±0.25
.300
5.2±0.15
.205
5.6 - 0.5
.210
5.6 - 0.5
.210
6.35±0.15
.250
6.35±0.15
.250
6.35±0.15
.250
6.35±0.15
.250
9.5±0.25
.375
9.5±0.25
.375
9.5±0.25
.375
9.5±0.25
.375
9.5±0.25
.375
9.65±0.25
.380
9.65±0.25
.380
9.65±0.25
.380
B
1.65+0.25
B
.070
1.8±0.15
.071
2.3±0.2
.090
2.25+0.25
.094
2.25+0.25
.094
2.25+0.25
.094
2.65±0.25
.105
2.65±0.25
.105
2.65±0.25
.105
2.95+0.45
.125
2.95+0.45
.125
2.95+0.45
.125
2.95+0.45
.125
4.5+0.75
.192
4.5+0.75
.192
4.75+0.3
.193
4.75+0.3
.193
4.75+0.3
.193
5.0±0.2
.197
5.0±0.2
.197
6.35±0.15
.250
C*
5.95±0.25
C*
.234
6.85±0.25
.270
12.7±0.35
.500
7.55±0.25
.297
7.55±0.25
.297
15.1±0.75
.595
20.6±0.75
.812
12.7±0.5
.500
12.7±0.5
.500
12.7±0.5
.500
15.9±0.5
.625
25.4±0.75
1.000
25.4±0.75
1.000
6.35±0.35
.250
14.5±0.6
.570
10.4±0.25
.410
15.9±0.45
.625
19.05±0.7
.750
5.05 - 0.45
.190
5.05 - 0.45
.190
7.35±0.25
.290
Wt (g)
H (Oe)
10 MHz
Typical Impedance( )
25 MHz
100 MHz
1
250 MHz
2643001301
2673015301
2643005701
2673000801
2643000801
2643300101
2673200201
2673003201
2643003201
2643250402
2643250302
2631250202
2643250202
2643375102
2643375002
2643006302
2643023402
2643023002
2673002402
2643002402
2643012702
.18
.26
.81
1.0
1.0
2.1
1.3
.87
.87
1.2
1.5
2.5
2.5
1.4
3.1
2.2
3.4
4.1
1.1
1.1
1.3
1.6
1.5
1.2
1.0
1.0
1.0
1.1
1.1
1.1
.91
.91
.91
.91
.60
.60
.60
.60
.60
.59
.59
.51
19
90
88
59
48
41
31
54
78
52
63
115
125
85
63
69
85
138
135
35
78
53
83
100
20
26
24
48
120
92
200
88
102
122
230
200
50
115
80
120
145
43
38
**Bold part numbers designate preferred parts.
*This dimension may be modified to suit specific applications.
1
Guaranteed Z Min is Z Typ -20%
P.O. Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) FAIR RITE / (845) 895-2055
(888) 324-7748
Fair-Rite Products Corp.
•
FAX: (888) FERRITE / (845) 895-2629 • www.fair-rite.com • E-Mail: ferrites@fair-rite.com
(888) 337-7483
Note: (914) Area Code has changed to (845).
28
14th Edition
EMI Suppression Beads
40
150
2673021801
2673000101
125
100
2673003201
30
2673004801
20
2673004601
75
2673000301
10
2673000501
50
2673018001
25
0
10
6
10
7
Frequency (Hz)
Figure 1
Impedance vs. Frequency for 73 material
EMI suppression beads.
Figure 2
10
8
0
10
6
10
7
Frequency (Hz)
Impedance vs. Frequency for 73 material
EMI suppression beads.
10
8
150
2643000701
300
250
200
150
2643023801
125
100
75
2643000301
2643300101
2643000801
2643023002
50
2643001501
100
50
0
10
6
10
7
10
8
10
9
10
6
10
7
2643005701
25
0
Frequency (Hz)
Figure 3
Impedance vs. Frequency for 43 material
EMI suppression beads.
10
8
10
9
Frequency (Hz)
Figure 4
Impedance vs. Frequency for 43 material
EMI suppression beads.
150
125
100
75
2661000301
2661022401
350
300
2661023801
250
200
150
100
2661000701
2661021801
50
2661000101
25
0
10
6
10
7
10
8
10
9
Frequency (Hz)
Figure 5
Impedance vs. Frequency for 61 material
EMI suppression beads.
50
0
10
6
10
7
10
8
10
9
Frequency (Hz)
Figure 6
Impedance vs. Frequency for 61 material
EMI suppression beads.
Fair-Rite Products Corp.
Phone: (888) FAIR RITE / (845) 895-2055
(888) 324-7748
P.O. Box J,One Commercial Row, Wallkill, NY 12589-0288
•
FAX: (888) FERRITE / (845) 895-2629 • www.fair-rite.com • E-Mail: ferrites@fair-rite.com
(888) 337-7483
Note: (914) Area Code has changed to (845).
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