PC Beads (Through Hole)

Part Number: 2944778101

44 PC BEAD

Explanation of Part Numbers:
– Digits 1 & 2 = Product Class
– Digits 3 & 4 = Material Grade
– Last digit 1 = Standard Wire Length 2.4 mm (0.095″) Minimum, 2 = Wire Length 3.1 mm (0.122) Minimum

Multiple single turn or multi-turn printed circuit EMI suppression beads are available in two Fair-Rite materials. The broadband 44 material and in the high frequency 52 material grade.

Wires are oxygen free high conductivity copper with 100% matte tin plating over a nickel undercoating. Wires on top of the beads are covered with a layer of epoxy.

Recommended operating and storage temperature for the PC Beads is -55 °C to +125 °C.

Recommended Soldering Profile 

Catalog Drawing
3D Model

PC Beads can be supplied with lower component heights “C”. Also, the wire length “F” can be modified to specific requirements.

Weight: 2.7 (g)

Dimmmmm tolnominal inchinch misc.
A11.2-0.500.431_
B5.75-0.500.217_
C11.8Max0.464Max
D2.54±0.100.1_
E2.54±0.100.1_
F2.79±0.250.110_
G0.65_022 AWG

Chart Legend
+ Test frequency

Typical Impedance (Ω)
10 MHz132
25 MHz+205
100 MHz+314
250 MHz323

PC Beads are controlled for impedance only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is typically the listed impedance less 20%.

Catalog Drawing

The PC Beads in 44 material are measured on the E4990A Impedance Analyzer. The 52 PC Beads are tested for impedance on the E4991A / HP4291B Impedance Analyzer.

Typical Impendance (Ω)
10 MHz115
25 MHz+188
100 MHz+288
250 MHz305

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Fair-Rite Products Corp.     One Commercial Row, Wallkill, New York 12589-0288
888-324-7748      845-895-2055      Fax: 845-895-2629      [email protected]      www.fair-rite.com