Beads-on-Leads (2773003112)
73 BEAD ON LEAD
73 Material
Suppression Components
Board Component
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Part Number: 2773003112
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)
Dim | mm | mm tol | nominal inch | inch misc. |
A | 3.5 | ±0.25 | 0.138 | _ |
B | 62 | ±1.50 | 2.44 | _ |
C | 6.7 | ±0.25 | 0.264 | _ |
D | 0.65 | _ | 0 | 22 AWG |
Reel Information | ||||
Tape Width mm | Pitch mm | Parts 7" Reel | Parts 13" Reel | Parts 14" Reel |
6 | 5 | _ | _ | 4500 |
Chart Legend
+ Test frequency
Typical Impedance (Ω) | |
1 MHz | 25 |
5 MHz | 58 |
10 MHz+ | 83 |
25 MHz+ | 84 |
Beads-on-leads are controlled for impedances only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is typically the listed impedance less 20%. The impedance of the 73 & 43 beads-on-leads are measure on the E4990A Impedance Analyzer. The 61 beads-on-leads are tested for impedance on the E4991A / HP4291B Impedance Analyzer.
Typical Impendance (Ω) | |
1 MHz | 26 |
5 MHz | 59 |
10 MHz+ | 70 |
25 MHz+ | 86 |
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 |
4200 5 |
Residual Flux Density | Gauss | Br | 1100 |
Coercive Force | Oersted | Hc | 0.18 |
Loss Factor @ Frequency | 10 -6 MHz |
Tan δ/ µi | 10 0.1 |
Temperature Coefficient of Initial Permeability (20 -70°C) | %/°C | 0.5 | |
Curie Temperature | °C | Tc | >160 |
Resistivity | ohm-cm | ρ | 100 |
**** 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
Storage and Operating Temperature
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