Classification of inductors/Comparison Table of Magnetic Core Material Properties

Introduction: An inductive coil is made up of wires wound one by one on an insulating tube, which is insulated from each other. The insulating tube can be hollow or contain an iron core or magnetic powder core, abbreviated as an inductor. It is represented by l and has units of Henry (h), milliHenry (mh), and microHenry (uh). 1h=10 ^ 3mh=10 ^ 6uh.

Inductive coil

Inductive coils are made up of wires wound one by one on an insulating tube, which is insulated from each other. The insulating tube can be hollow or contain an iron core or magnetic powder core, abbreviated as inductance. Represented by l, the units include Henry (h), milliHenry (mh), and microHenry (uh), with 1h=10 ^ 3mh=10 ^ 6uh.

1、 Classification of inductors

Classified by inductance form: fixed inductance, variable inductance.

Classified by the properties of magnetic conductors: hollow core coils, ferrite coils, iron core coils, and copper core coils.

Classified by job nature: antenna coil, oscillation coil, choke coil, notch coil, deflection coil.

Classified by winding structure: single-layer coil, multi-layer coil, honeycomb coil.

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Comparison Table of Material Properties of Inductor Magnetic Core

Click: 29, Article entry date: 2008-05-05 00:15:22, Source: www.xhdz123.cn

Introduction: Performance Comparison Table of Inductor Magnetic Core Materials Iron Powder (Pure) Iron Powder Core Hi flux High flux Magnetic Powder Core Super Mss Iron Silicon Aluminum Magnetic Powder Core MPP Iron Nickel Molybdenum Magnetic Powder Core

Comparison Table of Material Properties of Inductor Magnetic Core

Iron powder

(Pure) iron powder core

Hi flush

High flux magnetic powder core

Super mss

Iron silicon aluminum magnetic powder core

MPP

Mpp Cores

Ferrite

Ferrite core

Basic composition of magnetic core materials

100% iron powder

50% nickel and 50% ferroalloy powder

85% iron, 9% silicon, and 6% aluminum alloy powder

81% nickel, 17% iron, 2% molybdenum alloy powder

Ceramic like composite of manganese zinc oxide and iron oxide

Air gap form

Distributed inside the magnetic core

Distributed inside the magnetic core

Distributed inside the magnetic core

Distributed inside the magnetic core

Discrete, individual air gap openings

The composition of the air gap itself

Organic and inorganic adhesives

Inorganic adhesive

Inorganic adhesive

Inorganic adhesive

air

The value of DC bias magnetic field when the magnetic permeability decreases to 50% under DC bias magnetic field

5600a/m (A/m)

70oe (Auster)

9500A/m (A/m)

120oe (Auster)

7200A/m (A/m)

9oe (Auster)

8000A/m (A/m)

10oe (Auster)

5600a/m (A/m)

70oe (Auster)

Typical Core Loss - Test Conditions at 100 kHz, 0.05 tesla Tesla (500 Gauss)

800

(MW/cm3)

260

(MW/cm3)

200

(MW/cm3)

120

(MW/cm3)

230

(MW/cm3)

Typical percentage change in magnetic permeability - in AC magnetic fields ranging from 0-0.4 Tesla (0-4000 Gauss)

260%

7%

-20%

-6%

-

Magnetic permeability range

3 to 100

14 to 160

26 to 125

14 to 350

Determined by the size of the air gap opening

Typical magnetic core loss, under testing conditions of 50 kHz and 0.05 tesla (MW/cm3)

330 (Permeability 75.)

170

(Permeability -125)

80

(Permeability -125)

55

(Permeability -125) is determined by the size of the air gap opening

Curie temperature (℃)

750 ℃

500 ℃

600 ℃

400 ℃

200 ℃

High working temperature (℃)

75-130 ℃

130 ℃ to 200 ℃

130 ℃ to 200 ℃

Core shape

Circular or ex type, etc

Circular shape

Ring type, e-type, can type, etc

Relative price level

low

high

secondary

high

secondary