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PC Beads (Through Hole)

Part Number: 2952778301
Higher Frequencies 250-1000 MHz (52 material)
Suppression Components
Board Component
Printer Friendly Data Sheet
Check Stock

Part Number: 2952778301


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: 6 (g)

Dimmmmm tolnominal inchinch misc.
G0.65_022 AWG

Chart Legend
+ Test frequency

Typical Impedance (Ω)
100 MHz315
250 MHz+480
500 MHz+442
1000 MHz340

PC Beads are controlled for impedance only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is listed on our catalog drawing.

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)
100 MHz 320
250 MHz+ 460
500 MHz+ 395
1000 MHz 300

CSV Download

A new high frequency NiZn ferrite material that combines a high saturation flux density and a high Curie temperature.

Available in 52 material:
SM Beads
PC Beads
Range Of  Rod Cores

52 Material Characteristics
Property Unit Symbol Value
Initial Permeability @ B < 10 gauss µi 250
Flux Density @ Field Strength Gauss
Residual Flux Density Gauss Br 2900
Coercive Force Oersted Hc 0.60
Loss Factor @ Frequency 10 -6
Tan δ/ µi 45
Temperature Coefficient of Initial Permeability (20 -70°C) %/°C .8
Curie Temperature °C Tc >250
Resistivity ohm-cm ρ 1×109

**** Characteristic curves are measured on standard Toroids (18/10/6 mm)  at 25°C and 10 kHz unless otherwise indicated. Impedance characteristics are measured on standard shield beads (3.5/1.3/6.0 mm) unless otherwise indicated.

Material Safety Data Sheet (MSDS)

Click here to download Complex Permeability vs. Frequency (CSV)

Ferrite Material Constants

Specific Heat
0.25 cal/g/°C
Thermal Conductivity
3.5 - 4.5 mW/cm-°C
Coefficient of Linear Expansion
8 - 10x10-6/°C
Tensile Strength
4.9 kgf/mm2
Compressive Strength
42 kgf/mm2
Young's Modulus
15x103 kgf/mm2
Hardness (Knoop)
Specific Gravity
≈4.7 g/cm3
The above quoted properties are typical for Fair-Rite MnZn and NiZn ferrites.

Storage and Operating Temperature
Printer Friendly Data Sheet - Download as pdf file

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