15th Edition
29
EMI Suppression Beads
Listed by frequency range and in ascending order of “B” dimension.
Fair-Rite offers a broad selection of ferrite EMI suppression beads with guaranteed minimum impedance
specifications
• Beads with a "1" as the last digit of the part number are not burnished.
Parts that are burnished to break the sharp edges have a "2" as the
last digit.
• Upon request beads can be supplied with a Parylene coating. The last
digit of the Parylene coated part is a "4". The minimum coating thickness
beads is 0.005mm (.0002"). See page
124
for material characteristics of
Parylene C.
• The column "H (Oe)" gives for each bead 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 material graphs on pages
145-146,
Figures 18-23.
• Suppression beads are controlled for impedances only. The impedances listed are typical values. Minimum impedance values
are specified for the + marked frequencies. The minimum guaranteed impedance is the listed typical impedance less 20%.
• Single turn impedance tests for 73 and 43 material beads are performed on the 4193A Vector Impedance Analyzer. The 61
material beads are tested on the 4191A RF Impedance Analyzer.
Beads are tested with the shortest practical wire length.
• Performance curves of all listed EMI suppression beads are compiled on the Fair-Rite Products CD-ROM.
• For larger suppression cores, refer to the section "Round Cable EMI Suppression Cores" found on pages 70-74.
• For any EMI suppression bead requirement not listed here, feel free to contact our customer service group for availability and pricing.
• Our "Shield Bead Kit" (part number 0199000019) contains a selection of these beads. See page
67.
• Explanation of Part Numbers: Digits 1&2 = product class, 3&4 = material grade and last digit 1= not burnished, 2 = burnished and
4 = Parylene coated.
Lower Frequencies < 50 MHz (73 material)
Dimensions
(Bold
numbers are in millimeters,
light numbers are nominal in inches.)
Typical Impedance( )
Part Number**
A
B
C*
Wt (g)
H (Oe)
1 MHz
5 MHz
10 MHz+
25 MHz+
2673901301
2673004601
2673004701
2673030101
2673025301
2673010101
0.95 - 0.05
.036
1.1 - 0.1
.041
1.45 - 0.15
.054
1.22 - 0.13
.045
1.25 - 0.1
.047
1.95 - 0.25
.072
0.45+0.1
.020
0.65+0.1
.028
0.7+0.1
.029
0.8+0.1
.033
0.8+0.1
.033
0.8+0.1
.033
3.8±0.2
.150
4.1 - 0.3
.156
2.3±0.15
.090
5.3 - 0.45
.200
3.8±0.2
.150
10.0 - 0.4
.384
.01
.01
.01
.01
.01
.08
6.0
4.7
4.0
4.1
4.0
3.3
5.3
3.3
3.1
3.5
2.9
20.5
13
8.2
7.6
8.6
7.1
48.5
16
12.5
12.5
11
10
55
24
19
17
17
15
77
+ Test frequency
**Bold part numbers designate preferred parts.
*This dimension may be modified to suit specific applications.
Click on part number for performance curves.
F air-Rite Produ ct s C or p.
Phone:
(888) FAIR RITE / (845) 895-2055 •
FAX: (888) FERRITE / (845) 895-2629
(888) 324-7748
(888) 337 -7483
PO Box J, One Commercial Row, Wallkill, NY 12589-0288
•
www.fair-rite.com
•
E-Mail: ferrites@fair-rite.com
30
15th Edition
EMI Suppression Beads
Listed by frequency range and in ascending order of “B” dimension.
Lower Frequencies < 50 MHz (73 material)
Dimensions
(Bold
numbers are in millimeters,
light numbers are nominal in inches.)
Typical Impedance( )
Part Number**
A
B
C*
Wt (g)
H (Oe)
1 MHz
5 MHz
10 MHz+
25 MHz+
2673004801
2673028602
2673012401
2673002201
2673000501
2673000201
2673000101
2673000301
2673000701
2673022401
2673021801
2673018001
2673004901
2673001601
2.1 - 0.15
.080
2.13 - 0.1
.082
1.55 - 0.1
.059
1.95 - 0.2
.072
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
5.1±0.25
.200
5.1±0.25
.200
2.85±0.1
.112
2.85±0.1
.112
3.55±0.15
.140
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
1.3±0.1
.051
1.3±0.1
.051
1.3±0.1
.051
1.45+0.25
.062
1.45+0.25
.062
1.65+0.15
.068
1.65+0.15
.068
1.65+0.25
.070
2.9 - 0.45
.105
5.6±0.15
.220
4.2 - 0.25
.160
10.4±0.25
.410
1.65 - 0.25
.060
3.8±0.25
.150
3.25±0.25
.128
6.0±0.25
.236
12.7±0.35
.500
6.35±0.25
.250
11.1±0.35
.437
6.65±0.25
.262
10.45±0.25
.410
3.3 - 0.4
.122
.03
.07
.02
.09
.01
.04
.13
.24
.51
.56
1.0
.13
.20
.11
3.1
2.7
3.3
2.9
2.8
2.8
2.0
2.0
2.0
1.5
1.5
1.8
1.8
1.6
5.5
13
3.5
14
2.1
5.2
8.1
15.5
34.5
20
35.5
8.3
13.5
5.1
14
23
37
23.5
7.9
13.5
30.5
8.6
33.5
6.3
12.5
19.5
37.5
81.5
47.5
84
20
32.5
12.5
34
55.5
89
56.5
19
18
38
11
38
7.5
18
25
57
120
54
94
29
40
16
28
50
19
55
12
27
35
63
125
58
95
41
58
24
2673015301
2673000801
2673200201
2673003201
2673002402
4.1 - 0.25
.156
7.5±0.25
.296
5.2±0.15
.205
5.6 - 0.5
.210
9.65±0.25
.380
1.8±0.15
.071
2.25+0.25
.094
2.65±0.25
.105
2.65±0.25
.105
5.0±0.2
.197
6.85±0.25
.270
7.55±0.25
.297
20.6±0.75
.812
12.7±0.5
.500
5.05 - 0.45
.190
.32
1.4
1.6
1.0
1.2
1.5
1.0
1.1
1.1
.59
41
48
110
60
19
54
45
113
60
15
+ Test frequency
**Bold part numbers designate preferred parts.
*This dimension may be modified to suit specific applications.
Click on part number for performance curves.
F a ir-Rite Produ cts Corp.
Phone:
(888) FAIR RITE / (845) 895-2055 •
FAX: (888) FERRITE / (845) 895-2629
(888) 324-7748
(888) 337 -7483
PO Box J, One Commercial Row, Wallkill, NY 12589-0288
•
www.fair-rite.com
•
E-Mail: ferrites@fair-rite.com
15th Edition
31
EMI Suppression Beads
Listed by frequency range and in ascending order of “B” dimension.
Broadband Frequencies 25-300 MHz (43 material)
Dimensions
(Bold
numbers are in millimeters,
light numbers are nominal in inches.)
Typical Impedance ( )
Part Number**
A
B
C*
Wt (g)
H (Oe)
10 MHz
25 MHz+ 100 MHz+ 250 MHz
2643004601
2643004701
2643004101
2643706001
2643020501
2643004801
2643002201
2643000501
2643000201
2643000101
2643000301
2643000701
2643200101
2643022401
2643021801
2643023801
2643001501
2643025601
2643023201
2643013801
2643001601
2643001301
2643005701
2643000801
1.1 - 0.1
.041
1.45 - 0.15
.054
3.5±0.2
.138
3.5±0.25
.138
1.65±0.025
.065
2.1 - 0.15
.080
1.95 - 0.2
.072
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
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
3.5±0.2
.138
3.55±0.15
.140
3.55±0.15
.140
5.1±0.25
.200
7.5±0.2
.296
0.65+0.1
.028
0.7+0.1
.029
0.75+0.1
.031
0.8+0.1
.033
0.85+0.1
.034
0.85+0.1
.034
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
1.45+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+0.25
.070
1.65+0.25
.070
1.65+0.25
.070
2.3±0.2
.090
2.25+0.25
.094
4.1 - 0.3
.156
2.3±0.15
.090
4.45±0.35
.175
2.7 - 0.45
.097
3.68 - 0.25
.140
2.9 - 0.45
.105
10.4±0.25
.410
1.65 - 0.25
.060
3.8±0.25
.150
3.25±0.25
.128
6.0±0.25
.236
12.7±0.35
.500
3.4 - 0.45
.125
6.35±0.25
.250
11.1±0.35
.437
22.85±0.75
.900
3.25±0.25
.128
6.0±0.25
.236
3.75±0.25
.147
4.05±0.25
.160
3.3 - 0.4
.122
5.95±0.25
.234
12.7±0.35
.500
7.55±0.25
.297
.01
.01
.11
.06
.02
.03
.08
.01
.03
.10
.18
.38
.19
.38
.67
1.4
.10
.18
.06
.12
.09
.18
.81
1.0
4.7
4.0
2.6
2.5
3.4
3.1
2.9
2.8
2.8
2.0
2.0
2.0
1.5
1.5
1.5
1.5
1.7
1.7
1.8
1.6
1.6
1.6
1.2
1.0
9
8
32
18
12
12
26
6
12
17
29
60
19
36
62
126
13
23
10
14
11
21
49
42
12.5
12.5
48
26
17
18
34
9
16
26
46
89
30
55
96
192
21
38
15
24
19
31
78
63
31
26
70
45
31
31
58
22
31
40
60
125
41
82
131
266
35
55
30
38
30
48
120
92
39
39
89
59
47
47
77
33
46
56
83
148
61
97
151
285
50
70
43
52
46
65
123
109
Click on part number for performance curves.
**Bold part numbers designate preferred parts.
*This dimension may be modified to suit specific applications.
+ Test frequency
F air-Rite Produ ct s C or p.
Phone:
(888) FAIR RITE / (845) 895-2055 •
FAX: (888) FERRITE / (845) 895-2629
(888) 324-7748
(888) 337 -7483
PO Box J, One Commercial Row, Wallkill, NY 12589-0288
•
www.fair-rite.com
•
E-Mail: ferrites@fair-rite.com
32
15th Edition
EMI Suppression Beads
Listed by frequency range and in ascending order of “B” dimension.
Broadband Frequencies 25-300 MHz (43 material)
Dimensions
(Bold
numbers are in millimeters,
light numbers are nominal in inches.)
Typical Impedance( )
Part Number**
A
B
C*
Wt (g)
H (Oe)
10 MHz
25 MHz+ 100 MHz+ 250 MHz
2643300101
2643003201
2643250402
2643250302
2643250202
2643375102
2643375002
2643006302
2643023402
2643023002
2643002402
2643012702
7.6±0.25
.300
5.6-0.5
.210
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
2.25+0.25
.094
2.65
±
0.25
.105
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
6.35±0.15
.250
15.1±0.75
.595
12.7±0.5
.500
12.7±0.5
.500
15.9±0.5
.625
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
7.35±0.25
.290
2.1
.87
1.2
1.5
2.5
1.4
3.1
2.2
3.4
4.1
1.1
1.3
1.0
1.1
.91
.91
.91
.60
.60
.60
.60
.60
.59
.51
83
42
43
53
83
21
47
34
51
60
16
15
115
63
69
85
135
35
78
53
83
100
26
24
200
88
102
122
200
50
115
80
120
145
43
38
195
110
111
132
196
66
119
92
127
148
56
55
**Bold part numbers designate preferred parts.
*This dimension may be modified to suit specific applications.
Click on part number for performance curves.
+ Test frequency
F a ir-Rite Produ cts Corp.
Phone:
(888) FAIR RITE / (845) 895-2055 •
FAX: (888) FERRITE / (845) 895-2629
(888) 324-7748
(888) 337 -7483
PO Box J, One Commercial Row, Wallkill, NY 12589-0288
•
www.fair-rite.com
•
E-Mail: ferrites@fair-rite.com
15th Edition
33
EMI Suppression Beads
Listed by frequency range and in ascending order of “B” dimension.
Higher Frequencies 250-1000 MHz (61 material)
Dimensions
(Bold
numbers are in millimeters,
light numbers are nominal in inches.)
Typical Impedance( )
Part Number**
A
B
C*
Wt (g)
H (Oe)
100 MHz
250MHz+
500 MHz+ 1000 MHz
2661030101
2661002201
1.22 - 0.13
.045
1.95 - 0.2
.072
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
0.8+0.1
.033
1.05+0.1
.043
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
5.3 - 0.45
.200
10.4±0.25
.410
3.25±0.25
.128
6.0±0.25
.236
12.7±0.35
.500
6.35±0.25
.250
11.1±0.35
.437
22.85±0.75
.900
.01
.08
4.1
2.9
17
53
30
54
120
58
102
210
97
84
75
165
42
35
32
76
45
82
158
82
141
286
130
114
103
230
63
54
53
97
62
103
178
103
167
325
150
134
120
275
83
75
93
122
95
120
185
138
185
350
167
160
143
330
117
112
+ Test frequency
2661000101
2661000301
2661000701
2661022401
2661021801
2661023801
2661005701
2661000801
2661250402
2661250202
2661375102
2661002402
.10
.18
.38
.38
.67
1.4
.81
1.0
1.2
1.4
2.5
1.1
2.0
2.0
2.0
1.5
1.5
1.5
1.2
1.0
.91
.91
.60
.59
5.1±0.25
.200
7.5±0.25
.296
6.35±0.15
.250
6.35±0.15
.250
9.5±0.25
.375
9.65±0.25
.380
2.3±0.2
.090
2.25+0.25
.094
2.95+0.45
.125
2.95+0.45
.125
4.5+0.75
.192
5.0±0.2
.197
12.7±0.35
.500
7.55±0.25
.297
12.7±0.5
.500
25.4±0.75
1.000
6.35±0.35
.250
5.05 - 0.45
.190
**Bold part numbers designate preferred parts.
*This dimension may be modified to suit specific applications.
Click on part number for performance curves.
F air-Rite Produ ct s C or p.
Phone:
(888) FAIR RITE / (845) 895-2055 •
FAX: (888) FERRITE / (845) 895-2629
(888) 324-7748
(888) 337 -7483
PO Box J, One Commercial Row, Wallkill, NY 12589-0288
•
www.fair-rite.com
•
E-Mail: ferrites@fair-rite.com
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