2743037447 Fair-Rite, 2743037447 Datasheet - Page 173

• Manufacturer Part Number: 2743037447
• Description: CHIP BEAD,Ferrite
• Manufacturer: Fair-Rite

Specifications of 2743037447

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

14th Edition
P.O. Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) FAIR RITE / [phone]
Summary
The low cutoff frequency f
the ferrite material selection. The material with the highest initial
permeability at f
Manganese zinc ferrites, 77 and 78, can be used to a cutoff
frequency f
ferrite, again depending upon the frequency f
material.
For low and medium frequency transformers the optimum core
shape should provide the lowest DC resistance per unit of
inductance. If there is a superimposed dc present the use of
gapped cores and Hanna curves is suggested. For high fre-
quency designs, use nickel zinc ferrite. The toroidal and multi-
aperture cores are the recommended core configurations.
The number of turns should be kept to a minimum to reduce
leakage inductance and self-capacitance of the windings. Wind
primary and secondary windings tightly coupled or as bifilar
windings to lower leakage inductance.
The Bead, Balun and Broadband Kit II, part number 0199000011,
contains a variety of components suited for broadband trans-
former design evaluations, see page 92.
Figure 5
1000
100
10
1
[phone]
10
Parallel resistance vs. frequency for part number
28—002302 in 73, 43 and 61 material.
1
6
of 500 kHz. Above this frequency use a nickel zinc
1
73
is the recommended choice.
10
Frequency (Hz)
1
61
43
is the single most important factor in
7
10
8
1
, select 61 or 43
• FAX: (888) FERRITE / [phone] • www.fair-rite.com • E-Mail: [e-mail]
Technical Information
[phone]
10
9
Fair-Rite Products Corp.
Figure 4
Figure 6
Note: (914) Area Code has changed to (845).
1000
100
100
10
10
1
1
10
10
Parallel reactance vs. frequency for part number
28—002302 in 73, 43 and 61 material.
Impedance vs. frequency for part number
28—002302 in 73, 43 and 61 material.
6
6
73
10
10
Frequency (Hz)
Frequency (Hz)
43
43
7
73
7
61
10
10
8
61
8
10
10
9
9
173