MATERIAL 34 (Permeabilität 830)
Ein Nickel-Zink Material mit großem Volumenwiderstand. Wird häufig für Spulen mittlerer Frequenz in Ringform und für Breitbandübertrager bis 50 MHz benutzt. Wird als Ferritperle besonders zur Dämpfung unerwünschter Oberwellen im Bereich von 50 bis 200 MHz eingesetzt. Frequenz hohe Güte 40 MHz bis 400 MHz.
Beschichtungsoptionen:
- Toroide mit einem Außendurchmesser von 9,5 mm (0,375 ") oder kleiner können mit Parylen C beschichtet werden. Die Parylene-Beschichtung erhöht die Abmessungen "A" und "C" und verringert die Abmessung "B" um maximal 0,038 mm (0,0015 "). Die neunte Ziffer einer Parylene-beschichteten Toroid-Teilenummer ist eine "1". Siehe Referenztabellen für die Materialeigenschaften von Parylene C. Parylene C-Beschichtung sind RoHS-konform.
34 Material
Dieses NiZn ist unser populärster Ferrit zur Unterdrückung leitungsgebundener elektromagnetischer Störungen von 20 MHz bis 250 MHz. Dieses Material wird auch für induktive Anwendungen wie Hochfrequenz-Gleichtaktdrosseln verwendet. EMI-Unterdrückung Perlen, Perlen auf Leitungen, SM-Perlen, Multi-Apertur-Kernen, Rundkabel EMI-Entstörungskerne, Rundkabel Snap-its, Flachkabel EMI-Entstörungskerne, Flachkabel snap-its, verschiedene Unterdrückung Kerne, Spulen und Ringspulen sind alle erhältlich in 43 Material.
Features
NiZn ferrite material with a range for inductive applications up to 25 MHz, that can be used for EMI applications to suppress noise frequencies above 200 MHz.
Burnished to break sharp edges, can contain Parylene C coat at smaller diameters from the length of 9.5mm (0.375") or a uniform coating of thermo-set plastic at larger dimensions (if part numbers ends with a C).
Coating Options:
– Toroids with an outside diameter of 9.5 mm (0.375″) or smaller can be supplied Parylene C coated. The Parylene coating will increase the “A” and “C” dimensions and decrease the “B” dimension a maximum of 0.038 mm (0.0015″). The ninth digit of a Parylene coated toroid part number is a “1”. See reference tables for the material characteristics of Parylene C. Parylene C coating is RoHS compliant.
34 Material 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 common-mode chokes. EMI suppression beads, beads on leads, SM beads, multi-aperture cores, round cable 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 34 material.
Chart Legend
Σl/A : Core Constant, le : Effective Path Length, Ae : Effective Cross-Sectional Area, Ve : Effective Core Volume
AL : Inductance Factor
|
34 Material Characteristics |
|
Property |
Item |
Unit/
Symbol |
Value |
Max.
Permeabilität |
Freq. MHz Reso-nanz |
Freq. MHz
Breit-band |
Freq.
MHz
Drossel |
|
|
Initial Permeability@ B < 10 gauss |
|
µi |
830 |
3000 |
0.01-1 |
1-50 |
30-600 |
|
Flux Density @ Field Strength |
Gauss
Oersted |
B
H |
2900
10 |
Mittlere Feld-
Linienlänge
|
Oberfläche
|
Volumen
|
|
Residual Flux Density |
Gauss |
Br |
1300 |
3.12 cm |
0.15cm³ |
0.47 cm³ |
|
Coercive Force |
Oersted |
|
0.45 |
Sättigungsflußdichte
10 Oe (Gauß)
1300 |
Vol.Widerstand Ω/cm
10⁵ |
|
Loss Factor @ Frequency |
10 -6
MHz |
Tan δ/ µi |
250
1 |
Remanenzflußdichte
10 Oe (Gauß)
1300 |
Σl/A(cm-1)
20.8 |
|
Temperature Coefficient of Initial Permeability (20 -70°C) |
%/°C |
|
1.25 |
Density gm/cm3
≈4.7 g/cm3 |
|
Curie Temperature |
°C |
Tc |
>130 |
|
Resistivity |
Ohm-cm |
p
|
|
|
Electrical Specifications |
|
Bestellnr. |
Kern-Material |
Item |
Unit/Symbol |
Condition |
Value |
AL-Toleranz |
|
|
FT50A-34 |
Ferrit Toroid |
AL |
nH/N2 |
@ 10 KHz |
480 |
±20% |
|
NiZn |
|
|
Le |
cm |
N/A |
3.12 |
±10% |
|
Ae |
cm² |
N/A |
0.15 |
±10% |
|
Ve |
cm³ |
N/A |
0.47 |
±10% |
|
Initial Permeability |
µ0 |
@ B < 10 gauss |
850 |
±20% |
|
Temp. Coeff. Of initial
Permeability |
% °C |
20-70°C |
1.25 |
Typ. |
|
Coercive Force |
Hc |
oersted |
0.45 |
Typ. |
|
Residual Flux Density |
Gauss, Br |
N/A |
1300 |
Typ. |
|
Flux Density |
Gauss, B |
Initial (B), oersted |
2900 |
Typ. |
|
|
Gauss, H @ |
@ Field Strength (H), oersted |
10 |
Typ. |
|
Curie temperature |
°C |
Tc |
> 130 |
Nom. |
|
Resistivity |
Ω cm. p |
@ Field Strength |
10⁵ |
Typ. |
|
Loss Factor |
1×108
Tan δ/ µi |
Initial |
250 |
Typ. |
|
|
MHz |
@ Frequency |
1 |
Typ. |
|
Chart Legend |
|
Σl/A(cm-1): |
le : |
Ae : |
Ve : |
AL : |
|
|
Core Constant |
Effective Path Length |
Effective Cross-Sectional |
Effective Core Volume |
Inductance Factor
|
|
|
20.9 |
2.95 |
0.129 |
0.38 |
480 |
|
Dimensional Tolerances |
|
Case |
In |
Toleranz |
mm |
Toleranz |
Weight |
Gewicht |
|
B (Outer Diameter)/mm |
0.500 |
±0.010 |
12.7 |
±0.25 |
2.00 g |
2.00 gramm |
|
A (Inner Diameter)/mm |
0.312 |
±0.008 |
7.90 |
±0.20 |
--- |
--- |
|
H (Height)/mm |
0.25 |
±0.010 |
6.35 |
-0.25 |
--- |
-- |
|
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 |
|
Die oben genannten Eigenschaften sind typisch für Amidon MnZn- und NiZn-Ferrite.
The above quoted properties are typical for Amidon MnZn and NiZn ferrites. |
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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 common-mode chokes. EMI suppression beads, beads on leads, SM beads, multi-aperture cores, round cable 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 34 material.
34 Material is used for EMI/RFI suppression in the 20 MHz to 250 MHz range.