Fair-Rite Products Corp.
Phone: (888) FAIR RITE / (914) 895-2055
64
Fair-Rite offers a broad selection of shield beads to guaranteed impedance specifications over a
wide frequency range.
• Available materials: 73, 43, and 61.
• Beads with a “1” as the last digit of the part number are not burnished,
• Beads can be supplied Parylene coated upon request. The last digit of
• The “H” column gives for each bead size the calculated dc bias field in
• For performance data on shield beads, see pages 54 and 55 of section
• Beads are controlled for impedance limits only. They are tested for impedance
• For any shield bead requirement not listed in the catalog, feel free to contact
Dimensions
Shield Beads
* * Insert desired material in 3rd & 4th digit positions.
those with the last digit “2” are supplied burnished to break the sharp edges.
Parylene coated parts is a “4”. The minimum coating thickness for beads
is 0.05mm (.0002"). See page 6 for material characteristics of Parylene C.
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 page 49 of this catalog.
“How to Choose Ferrite Components for EMI Suppression”.
with a single turn, using a Hewlett Packard HP 4193A Vector Impedance Meter
for beads in 73 and 43 material and the HP 4191A RF Impedance Analyzer for
61 material beads.
our customer service group for availability and pricing.
Part Number**
2673901301
2673903301
26 - - 004601
26 - - 004701
2643004101
2643004201
2673030101
2673025301
2673010101
2643706001
2673025001
2643020501
* This dimension may be modified to suit specific applications.
(888) 324-7748
(Bold numbers are in millimeters, light numbers are nominal in inches.)
1.65±0.025
0.95 - 0.05
1.45 - 0.15
1.22 - 0.13
1.95 - 0.25
1.42±0.05
1.0 - 0.05
1.25 - 0.1
3.5±0.25
1.1 - 0.1
3.5±0.2
3.5±0.2
.
.
.036
.054
.138
.138
.045
.047
.072
.138
.056
.065
038
041
A
0.45+0.15
0.75+0.1
0.75+0.1
0.85+0.1
0.45+0.1
0.65+0.1
0.85+0.1
0.7+0.1
0.8+0.1
0.8+0.1
0.8+0.1
0.8+0.1
.020
.021
.028
.029
.031
.031
.033
.033
.033
.033
.034
.034
B
3.68 - 0.25
4.45±0.35
5.3 - 0.45
10.0 - 0.4
2.7 - 0.45
5.6±0.25
2.3±0.15
4.1 - 0.3
3.8±0.2
8.9±0.5
3.8±0.2
3.8±0.2
• FAX: (888) FERRITE / (914) 895-2629 • www.fair-rite.com • E-Mail: ferrites@fair-rite.com
.150
.220
.156
.090
.175
.350
.200
.150
.384
.097
.150
.140
C*
(888) 337 -7483
(g) (Oe)
.01
.01
.01
.01
.11
.22
.01
.01
.08
.06
.02
.02
Wt
6.0
5.7
4.7
4.0
2.6
2.6
4.1
4.0
3.3
2.5
3.6
3.4
H
13 Min.
19 Min.
10 Min.
10 Min.
44 Min.
10 Min.
10 MHz
9 Min.
8 Min.
One Commercial Row, Wallkill, NY 12589-0288
–
–
–
–
73
24±20%
35±20%
19±20%
17±20%
17±20%
15±20%
77±20%
20±20%
25 MHz
–
–
–
–
Listed in ascending order of "B" dimension
10 Min.
10 Min.
39 Min.
78 Min. 140±20%
21 Min.
17 Min.
25 MHz
A
Impedance( )
–
–
–
–
–
–
43
100 MHz
31±20%
26±20%
70±20%
45±20%
35±20%
B
–
–
–
–
–
–
100 MHz
–
–
–
–
–
–
–
–
–
–
–
–
13th Edition
61
C
250 MHz
–
–
–
–
–
–
–
–
–
–
–
–
