...

Broadband Ferrite Toroidal Cores For Non-Tuned Circuits and EMI Filters 1/8

by user

on
Category: Documents
4

views

Report

Comments

Transcript

Broadband Ferrite Toroidal Cores For Non-Tuned Circuits and EMI Filters 1/8
Broadband Ferrite Toroidal Cores
For Non-Tuned Circuits and EMI Filters
1/8
1. 31 Material Characteristics
Property
A MnZn ferrite designed specifically for EMI
suppression applications from as low as 1 MHz
up to 500 MHz. This material does not have the
dimensional resonance limitations associated
with conventional MnZn ferrite materials.
EMI suppression beads, round cable EMI
suppression cores, round cable snap-its, flat
cable EMI suppression cores, and flat cable
snap-its are all available in 31 material.
R.F. elettronica di Rota Fanco
Via Dante, 5
20030 Senago (MI)
Italy
Unit
Symbol
Initial Permeability
@ B < 10 gauss
Flux Density
@ Field Strength
Residual Flux Density
Coercive Force
µi
1500
gauss
oersted
B
H
3400
5
gauss
Br
2500
oersted
Hc
0.35
Tanδ/µi
20
0.1
-6
Loss Factor
@ Frequency
10
MHz
Temperature Coefficient of
Initial Permeability (20 -70°C)
%/°C
Curie Temperature
Value
1.6
°C
Tc
>130
Resistivity
Ω cm
ρ
1x10
Frequency range
MHz
3
1 - 500
Tel.: +39 (0)2 99487515
Fax: +39 (0)2 99489276
E-mail: [email protected]
Web: www.rf-microwave.com
Broadband Ferrite Toroidal Cores
For Non-Tuned Circuits and EMI Filters
2/8
2. 43 Material Characteristics
This NiZn is our most popular ferrite for
suppression of conducted EMI from 20 MHz to
250 MHz. This material is also used for inductive
applications such as high frequency commonmode chokes.
EMI suppression beads, beads on leads, SM
beads, multi-aperture cores, round cable EMI
suppression cores, split round EMI suppression
cores, round cable snap-its, flat cable EMI
suppression cores, flat cable snap-its,
miscellaneous suppression cores, bobbins, and
toroids are all available in 43 material.
R.F. elettronica di Rota Fanco
Via Dante, 5
20030 Senago (MI)
Italy
Property
Unit
Symbol
Initial Permeability
@ B < 10 gauss
Flux Density
@ Field Strength
Residual Flux Density
Coercive Force
µi
800
gauss
oersted
B
H
2900
10
gauss
Br
1300
oersted
Hc
0.45
Tanδ/µi
250
1.0
-6
Loss Factor
@ Frequency
10
MHz
Temperature Coefficient of
Initial Permeability (20 -70°C)
%/°C
Curie Temperature
Value
1.25
°C
Tc
>130
Resistivity
Ω cm
ρ
1x10
Frequency range
MHz
5
20 - 300
Tel.: +39 (0)2 99487515
Fax: +39 (0)2 99489276
E-mail: [email protected]
Web: www.rf-microwave.com
Broadband Ferrite Toroidal Cores
For Non-Tuned Circuits and EMI Filters
3/8
3. 46 Material Characteristics
Property
This is a MgZn ferrite intended Unit Symbol
Value for suppression applications. This
material does not use nickel in its composition,
hence it avoids potential environmental issues
as well as reduces the cost of the material
component of suppression parts. The
suppression performance of this 46 material is
similar to the widely used 43 material.
Symbol
Initial Permeability
@ B < 10 gauss
Flux Density
@ Field Strength
Residual Flux Density
Coercive Force
500
gauss
oersted
B
H
3000
10
gauss
Br
1900
oersted
Hc
0.40
Tanδ/µi
60
0.1
-6
10
MHz
Temperature Coefficient of
Initial Permeability (20 -70°C)
%/°C
Resistivity
Value
µi
Loss Factor
@ Frequency
Curie Temperature
R.F. elettronica di Rota Fanco
Via Dante, 5
20030 Senago (MI)
Italy
Unit
---
°C
Tc
>150
Ω cm
ρ
1x10
8
Tel.: +39 (0)2 99487515
Fax: +39 (0)2 99489276
E-mail: [email protected]
Web: www.rf-microwave.com
Broadband Ferrite Toroidal Cores
For Non-Tuned Circuits and EMI Filters
4/8
4. 61 Material Characteristics
A high frequency NiZn ferrite developed for a
range of inductive applications up to 25 MHz.
This material is also used in EMI applications
for suppression of noise frequencies above 200
MHz.
EMI suppression beads, beads on leads, SM
beads, wound beads, multi-aperture cores,
round cable EMI suppression cores, round cable
snap-its, rods, antenna/RFID rods, and toroids
are all available in 61 material.
Strong magnetic fields or excessive mechanical
stresses may result in irreversible changes in
permeability and losses.
R.F. elettronica di Rota Fanco
Via Dante, 5
20030 Senago (MI)
Italy
Property
Unit
Symbol
Initial Permeability
@ B < 10 gauss
Flux Density
@ Field Strength
Residual Flux Density
Coercive Force
µi
125
gauss
oersted
B
H
2350
15
gauss
Br
1200
oersted
Hc
1.8
Tanδ/µi
30
1.0
-6
Loss Factor
@ Frequency
10
MHz
Temperature Coefficient of
Initial Permeability (20 -70°C)
%/°C
Curie Temperature
Value
0.10
°C
Tc
>300
Resistivity
Ω cm
ρ
1x10
Frequency range
MHz
8
>250
Tel.: +39 (0)2 99487515
Fax: +39 (0)2 99489276
E-mail: [email protected]
Web: www.rf-microwave.com
Broadband Ferrite Toroidal Cores
For Non-Tuned Circuits and EMI Filters
5/8
5. 67 Material Characteristics
Property
Unit
Symbol
Initial Permeability
@ B < 10 gauss
A high frequency NiZn ferrite for the design of
broadband transformers, antennas and HF, high
Q inductor applications up to 50 MHz. Toroids,
multi-aperture cores and antenna/RFID rods are
available in this material.
Strong magnetic fields or excessive mechanical
stresses may result in irreversible changes in
permeability and losses.
R.F. elettronica di Rota Fanco
Via Dante, 5
20030 Senago (MI)
Italy
Flux Density
@ Field Strength
Residual Flux Density
Coercive Force
µi
40
gauss
oersted
B
H
2300
20
gauss
Br
800
oersted
Hc
3.5
Tanδ/µi
150
50
-6
Loss Factor
@ Frequency
10
MHz
Temperature Coefficient of
Initial Permeability (20 -70°C)
%/°C
Curie Temperature
Value
0.05
°C
Tc
>475
Resistivity
Ω cm
ρ
1x10
Frequency range
MHz
7
>250
Tel.: +39 (0)2 99487515
Fax: +39 (0)2 99489276
E-mail: [email protected]
Web: www.rf-microwave.com
Broadband Ferrite Toroidal Cores
For Non-Tuned Circuits and EMI Filters
6/8
6. 75 Material Characteristics
Property
Unit
Symbol
Initial Permeability
@ B < 10 gauss
A high permeability MnZn ferrite intended for a
range of broadband and pulse transformer
applications and common-mode inductor
designs.
Toroids and E&I cores are available in 75
material.
Flux Density
@ Field Strength
Residual Flux Density
Coercive Force
R.F. elettronica di Rota Fanco
Via Dante, 5
20030 Senago (MI)
Italy
µi
5000
gauss
oersted
B
H
4300
5
gauss
Br
1400
oersted
Hc
0.16
Tanδ/µi
15
0.1
-6
Loss Factor
@ Frequency
10
MHz
Temperature Coefficient of
Initial Permeability (20 -70°C)
%/°C
Curie Temperature
Value
0.6
°C
Tc
>140
Resistivity
Ω cm
ρ
3x10
Frequency range
MHz
2
0.5 - 20
Tel.: +39 (0)2 99487515
Fax: +39 (0)2 99489276
E-mail: [email protected]
Web: www.rf-microwave.com
Broadband Ferrite Toroidal Cores
For Non-Tuned Circuits and EMI Filters
7/8
7. 77 Material Characteristics
Property
Unit
Symbol
Initial Permeability
@ B < 10 gauss
A MnZn ferrite for use in a wide range of high
and low flux density inductive designs for
frequencies up to 100 kHz.
E&I cores, U cores, rods, tack bobbin cores,
toroids, and bobbins are all available in 77
material.
Flux Density
@ Field Strength
Residual Flux Density
Coercive Force
R.F. elettronica di Rota Fanco
Via Dante, 5
20030 Senago (MI)
Italy
µi
2000
gauss
oersted
B
H
4900
5
gauss
Br
1800
oersted
Hc
0.30
Tanδ/µi
15
0.1
-6
Loss Factor
@ Frequency
10
MHz
Temperature Coefficient of
Initial Permeability (20 -70°C)
%/°C
Curie Temperature
Value
0.7
°C
Tc
>200
Resistivity
Ω cm
ρ
1x10
Frequency range
MHz
2
0.5 - 50
Tel.: +39 (0)2 99487515
Fax: +39 (0)2 99489276
E-mail: [email protected]
Web: www.rf-microwave.com
Broadband Ferrite Toroidal Cores
For Non-Tuned Circuits and EMI Filters
8/8
8. Dimensions
Part number
A
(mm/inch)
B
(mm/inch)
C
(mm/inch)
FT-23-XX
FT-37-XX
FT-50-XX
FT-50A-XX
FT-82-XX
FT-114-XX
FT-140-XX
FT-114-XX
FT-240-XX
FT-290-XX
5.95/.230
9.50/.375
12.7/.500
12.7/.500
21.0/.825
29.0/1.142
35.55/1.400
29.0/1.142
61.0/2.400
73.65/2.900
3.05/.120
4.75/.187
7.15/.281
7.9/.312
13.2/.520
19.0/.748
23.0/.900
19.0/.748
35.55/1.400
38.85/1.530
1.65/.060
3.30/.125
4.90/.188
6.35/.250
6.35/.250
7.50/.295
12.7/.500
7.50/.295
12.7/.500
12.7/.500
9. Inductance rating & Other specifications
Σl/A = Core constant
le = Effective path length
Ae = Effective cross-sectional area
Ve = Effective core volume

AL = Inductance factor ( 2)

Material
43
Part
number
Σl/A
(cm-1)
le
(cm)
Ae
(cm2)
Ve
(cm3)
FT-23-XX
FT-37-XX
FT-50-XX
FT-50A-XX
FT-82-XX
FT-114-XX
FT-140-XX
FT-240-XX
FT-290-XX
63.8
28.6
22.9
20.8
21.3
19.8
11.2
9.2
7.8
1.30
2.07
2.95
3.12
5.2
7.3
8.9
14.5
16.7
0.02
0.072
0.129
0.15
0.243
0.37
0.79
1.58
2.15
0.027
0.15
0.38
0.47
1.26
2.70
7.0
22.8
35.9
R.F. elettronica di Rota Fanco
Via Dante, 5
20030 Senago (MI)
Italy
61
67
75
77
975
2200
2725
3225
-
420
945
1180
1175
1365
2400
2950
-
AL ±25%
(nH)
158
350
440
480
470
510
885
1075
1100
25
55
69
75
80
140
170
-
18
22
-
Tel.: +39 (0)2 99487515
Fax: +39 (0)2 99489276
E-mail: [email protected]
Web: www.rf-microwave.com
Fly UP