Product Data Sheet Generated June 22, 2026
fair-rite.com

EMI Suppression Beads (2673021801)

Part No. 2673021801
EMI Suppression Beads (2673021801)
Part Number
2673021801
Description
73 SHIELD BEAD
Part Type
EMI Suppression Beads
Frequency Range
73 Material
Application Type
Suppression Components
Where Used
Board Component
Material Grade
73
Ordering Information

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.

Mechanical Specifications

The C dimension, the bead length, can be modified to suit specific applications.

Weight: 1 (g)

Chart Legend
•Dimensions (Top numbers are in millimeters, bottom numbers are in nominal inches.).

Dimmmmm tolnominal inchinch misc.
A5.1±0.250.201_
B1.45+0.250.062_
C11.1±0.350.437_

Electrical Specifications

Chart Legend
+ Test frequency
•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 th

Typical Impedance (Ω)
1 MHz47
5 MHz101
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.

Typical Impendance (Ω)
1 MHz 35.5
5 MHz 84
10 MHz+ 94
25 MHz+ 95

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This document was generated automatically from Fair-Rite's product database. For the most current specifications, visit fair-rite.com.