EMI Suppression Beads (2673021801)
Part Number: 2673021801
73 SHIELD BEAD
Explanation of Part Numbers:
Digits 1 & 2 = Product Class
Digits 3 & 4 = Material Grade
Last digit 1= Not Burnished 2 = Burnished
The last digit of the Parylene coated part is a 4, which is available upon request. The minimum coating thickness beads is
0.005 mm (0.0002).
Fair- Rite offers a broad selection of ferrite EMI suppression beads with guaranteed minimum impedance specifications.
Our Shield Bead Kit (part number 0199000019) contains a selection of these beads.
For any EMI suppression bead requirement not listed here, feel free to contact our customer service for availability and
pricing.
Catalog Drawing
3D Model
The C dimension, the bead length, can be modified to suit specific applications.
Weight: 1 (g)
Dim mm mm tol nominal inch inch misc.
A 5.1 0.25 0.201 _
B 1.45 +0.25 0.062 _
C 11.1 0.35 0.437 _
Chart Legend
+ Test frequency
The columnH (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 figures 18-23 in the application note How to choose Ferrite Components for EMI
Suppression.
Typical Impedance ()
1 MHz 47
5 MHz 101
+
10 MHz 123
+
25 MHz 98
Electrical Properties
H(Oe) 1.5
Suppression beads are controlled for impedances only. Minimum impedance values are specified for the + marked frequencies.
The minimum impedance is typically the listed impedance less 20%.
Single turn impedance tests for 73 and 43 material beads are performed on the E4990A Impedance Analyzer. The 61 material
beads are tested on the E4991A / HP4291B Impedance Analyzer. Beads are tested with the shortest practical wire length.CSV Download
Fair- Rite Products Corp. One Commercial Row, Wallkill, New York 12589-0288
888-324-7748 845-895-2055 Fax: 845-895-2629 ferrites@fair- rite.com www.fair- rite.com