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Beads-on-Leads (2773004111)

Part Number: 2773004111
73 BEAD ON LEAD
Lower Frequencies < 50 MHz (73 material)
Suppression Components
Board Component
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Part Number: 2773004111

73 BEAD ON LEAD

Explanation of Part Numbers:
– Digits 1 & 2 = Product Class
– Digits 3 & 4 = Material Grade
– Last digit 1 = Bulk Packed 2 = Taped and Reeled

Ferrite suppression beads are supplied assembled on tinned copper wire for automated circuit board assembly.
•– Wires are oxygen free high conductivity copper with 100% matte tin plating over a nickel undercoating. The resistance of the wire is 3.5 mOhm for the 22 AWG and 2.2 mOhm for the 20 AWG wire.

Packaging Options:
•– Beads-on-leads can be supplied bulk packed. The last digit of bulk packed parts is a “1”. Parts with a “2” as the last digit of the part number are supplied taped and reeled per IEC 60286-1 and EIA RS-296-F standards. Taped and reeled parts are supplied 4500 pieces on a 14″ reel. Taping details: Component pitch 5 mm. Inside tape spacing 52.5 mm. Tape width 6 mm.
•– Our “Bead-on-Lead Suppression Kit” (part number 0199000028) is available for prototype evaluation.

For any bead-on lead requirement not listed here, feel free to contact our customer service group for availability and pricing.

Weight: 0.5 (g)

Dimmmmm tolnominal inchinch misc.
A3.5±0.250.138_
B62±1.502.44_
C7.6±0.300.3_
D0.65_022 AWG

Chart Legend
+ Test frequency

Typical Impedance (Ω)
1 MHz30
5 MHz69
10 MHz+80
25 MHz+100
Typical Impendance (Ω)
1 MHz 30
5 MHz 69
10 MHz+ 80
25 MHz+ 100

A MnZn ferrite supplied only in small cores to suppress conducted EMI frequencies below 50 MHz.

Available in 73 material:
EMI Suppression Beads
Beads On Leads
SM beads
Multi-Aperture Cores

73 Material Characteristics
Property Unit Symbol Value
Initial Permeability @ B < 10 gauss µi 2500
Flux Density @ Field Strength Gauss
Oersted
B
H
3900
5
Residual Flux Density Gauss Br 3200
Coercive Force Oersted Hc 0.28
Loss Factor @ Frequency 10 -6
MHz
Tan δ/ µi 20
0.1
Temperature Coefficient of Initial Permeability (20 -70°C) %/°C 1.3
Curie Temperature °C Tc >130
Resistivity ohm-cm ρ 3000

**** 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.

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)
650
Specific Gravity
≈4.7 g/cm3
The above quoted properties are typical for Fair-Rite MnZn and NiZn ferrites.


Storage and Operating Temperature
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