Features and Applications of Power Soft Magnetic Ferrite Cores

The ferrite core is made up of iron oxide (Fe2O3) plus one or more additional metal oxides or carbonate compounds (such as manganese, zinc, nickel, and magnesium). Ferrite raw materials are crushed, then sintered at high temperatures and machined to generate a completed magnetic core that matches the application's requirements. In comparison to other forms of magnetic materials, ferrite has high magnetic permeability, strong resistance across a wide frequency range, and low eddy current loss.

The soft ferrite cores of the following series are used in switch mode power supplies (SMPS), radio frequency (RF) transformers, common mode choke inductors, filters, and chokes.

EFD cores

I. Features: miniaturization of transformers; horizontal installation can reduce height, with multiple outputs, dense mounting.

II. Applications: various low-power switching power supply transformers, chokes, etc.

III. Size: EFD10 EFD12 EFD17 EFD20 EFD20L EFD25 EFD30 EFD50

RM cores

I. Features:suitable for high-density installation, with good shielding function.

II. Applications:carrier frequency inductor, power conversion transformer, auxiliary power transformer.

III. Size:RM4 RM5 RM6 RM7 RM8 RM10 RM12 RM14

PQ cores

I. Features: most suitable design shape, reducing the volume of the component during installation; meet safety requirements.

II. Applications:switching moce power supply transformers, choke coils.

III. Size:PQ20 PQ26 PQ32 PQ35 PQ40 PQ50

ER / EC / EER / ETD cores

I. Features:The cross section of the core of the magnetic core is round, which is convenient for winding; the winding area is increased, and high power switching transformer can be designed.

EE / EF cores

I. Features:high magnetic permeability, high saturation magnetic flux density and low loss. Because the iron loss is negatively related to temperature, it can prevent the temperature from rising gradually, Especially around 100 ℃, the power loss is minimal.

II. Applications:switching power supply transformers, chokes, inverters, converters, pulse transformers, etc.

III. Size:EE8.3 EE13 EE16 EE19 EE25 EE28 EE55

EQ cores

I. Features:small size, high inductance, convenient winding, high inductance per unit space, heat dissipation effect.

II. Applications:carrier filters, high-sensitivity sensors, power conversion transformers, etc.

III. Size: EQ20 EQ25 EQ30 EQ38

EPC cores

I. Features:small thermal resistance, small loss, high power, wide operating frequency, light weight, good shielding effect.

II. Uses:transformers with small size and high power and shielding and electromagnetic compatibility requirements, such as precision instruments, program control switch module power supplies, navigation equipment, etc.

III. Size:EPC10 EPC13 EPC17 EPC19 EPC25 EPC37

EP cores

I. Features:The coil frame is equipped with multiple plugs, which can easily design multi-output transformers. From the audio frequency to the high-frequency range, various transformers can be designed to match.

II. Uses:switching mode power supplies, high frequency transformers, coil inductors.

III. Size:EP5 EP7 EP10 EP13 EP17 EP20 EP30

POT cores

I. Features:small size, high inductance, convenient winding, balanced magnetic shielding and heat dissipation.

II. Uses:carrier filters, high-sensitivity sensors, high-efficiency sensors, power conversion transformers, etc.

III. Size:P05 P07 P11 P14 P18 P22

UU / UF cores

I. Features:small impedance deviation, large output current, high inductance, high harmonics can be suppressed.

II. Uses:Filter common mode inductor, widely used in color televisions, computers, monitors.

III. Size:UU9.8 UU10.5 UU15.7 UU16 UU18 UU21

ET UT cores

I. Features:Small stray capacitance, low ripple coefficient, low magnetic leakage and high inductance.

II. Uses:color display power supply, liquid crystal display power supply, computer switching power supply, video phone, walkie-talkie and other linear transformers.

III. Size: ET20 ET24 ET28 ET35

According to different magnetic parameters, You can choose different materials and shape cores to meet your business needs. You can also contact cosmo ferrites Limited for best deals.