2944666671C Fair-Rite, 2944666671C Datasheet - Page 5
![FERRITE BEAD, CYLINDRICAL](/photos/25/91/259132/4581408_sml.jpg)
2944666671C
Manufacturer Part Number
2944666671C
Description
FERRITE BEAD, CYLINDRICAL
Manufacturer
Fair-Rite
Datasheet
1.2643000101C.pdf
(198 pages)
Specifications of 2944666671C
Impedance
725ohm
Ferrite Grade
44
Ferrite Mounting
Through Hole
Ferrite Case Style
Axial
Peak Reflow Compatible (260 C)
Yes
Frequency
100MHz
Leaded Process Compatible
Yes
No. Of Pins
2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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**Bold part numbers designate preferred parts.
Dimensions
• Beads with a "1" as the last digit of the part number are not burnished.
• Upon request beads can be supplied with a Parylene coating. The last
• 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
• Suppression beads are controlled for impedances only. The impedances listed are typical values. Minimum impedance values
• Single turn impedance tests for 73 and 43 material beads are performed on the 4193A Vector Impedance Analyzer. The 61
• 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
EMI Suppression Beads
F a i r- Rite Products Co r p.
Phone:
Fair-Rite offers a broad selection of ferrite EMI suppression beads with guaranteed minimum impedance
specifications
*This dimension may be modified to suit specific applications.
Parts that are burnished to break the sharp edges have a "2" as the
last digit.
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.
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.
are specified for the + marked frequencies. The minimum guaranteed impedance is the listed typical impedance less 20%.
material beads are tested on the 4191A RF Impedance Analyzer. Beads are tested with the shortest practical wire length.
4 = Parylene coated.
Part Number**
2673901301
2673004601
2673004701
2673030101
2673025301
2673010101
(888) FAIR RITE / (845) 895-2055 • FAX: (888) FERRITE / (845) 895-2629
(888) 324-7748
(Bold numbers are in millimeters, light numbers are nominal in inches.)
0.95 - 0.05
1.45 - 0.15
1.22 - 0.13
1.95 - 0.25
1.25 - 0.1
1.1 - 0.1
.036
.041
.054
.045
.047
.072
A
Lower Frequencies < 50 MHz (73 material)
0.45+0.1
0.65+0.1
0.7+0.1
0.8+0.1
0.8+0.1
0.8+0.1
.020
.028
.029
.033
.033
.033
B
(888) 337 -7483
5.3 - 0.45
10.0 - 0.4
2.3±0.15
4.1 - 0.3
3.8±0.2
3.8±0.2
.150
.156
.090
.200
.150
.384
C*
Listed by frequency range and in ascending order of “B” dimension.
Wt (g)
Click on part number for performance curves.
.01
.01
.01
.01
.01
.08
H (Oe)
6.0
4.7
4.0
4.1
4.0
3.3
• www.fair-rite.com
• E-Mail: ferrites@fair-rite.com
PO Box J, One Commercial Row, Wallkill, NY 12589-0288
1 MHz
20.5
5.3
3.3
3.1
3.5
2.9
5 MHz
Typical Impedance( )
48.5
8.2
7.6
8.6
7.1
13
10 MHz +
12.5
12.5
16
11
10
55
+ Test frequency
25 MHz +
17
24
19
17
15
77
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