Samwha Electronics - Magnetic Powder Core - Block Core

• Block Core

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• Assembling standard blocks makes larger dimension and  variety of shapes customer wants. Very easy to get high output power for especially solar application.  

• Fe-Si material is used to get higher DCB characteristic.

• Sutable for reactors of solar power.

Samwha Electronics - Magnetic Powder Core - U Core

• U Core

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• This shape is optimized design to get effective sectional area and path length like E cores.

• Energy storage capacity is very hige and expected no magnetic flux leakage.

• This shape is used for chokes of SMPS and flyback transformer.

Samwha Electronics - Magnetic Powder Core - E Core

• E Core

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• This shape is developed to get higher DCB characteristics when E types of ferrite cores are proper with higher current.

• Because plastic bobbins are used with E shape, higher productivity are available. Also good temperature stability and large energy storage capacity are available.

• Multiple circuit choke coil and output chokes for SMPS. Also used for flyback transfomer.

Samwha Electronics - Magnetic Powder Core - Toroid Core

• Toroid Core

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• The most optomized shape to make magnetic field. No leakage inductance and other lossss are available. Each particle is insulated so no needed to gapping like ferrite cores.

• Shape is like a donut and directly wound normally. This shape gets full of the characteristics of material which applied. Good DCB characteristics are shown.

• They are applied to line filter ande inductors.

Samwha Electronics - Ferrite Core - EMC Core

• EMC Core

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• Many differenct shapes are under production. Impedance characteristics are very importanct for this application.

• Ni-Zn materials are mainly used because to reduce noise of MHz frequency reange.

• They are used for EMC application.

Samwha Electronics - Ferrite Core - Ferrite Absorber

• Ferrite Absorber

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• The dimensions of ferrite absorbers are standarized with 100mmx100mm. So very easy to install them on anechoic chamber. SN-20 and HSN-01, HSN-02 are mailny used because of their superior reflection loss.

• Ferrite absorbers show good absorption in the range of 30MHz~1GHz.
  Due to thin thickness of ferrite absorbers, the volume which the absorbers installed in the anechoic chamber is greatly reduced.
  Ferrite absorber panels will be directly screwed on shielding enclosure which enables installation easily.

• They are widely used as anechoic chamber for electro-magnetic compatibility(EMC) testing or block against electromagnetic interference (EMI).

Samwha Electronics - Ferrite Core - SMD Core

• SMD Core

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• Very small and low height design and directly placed on PCB.

• Extreamly small type of drum core are mainly used and rectangular types of cover is applied for sheilding.

• They ae using for PMP, smart phone etc.

Samwha Electronics - Ferrite Core - Drum Core

• Drum Core

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• Winding on center range of drum types. Both wings are easy to protect noise generated from winding area. Inductance increased by these wings also.

• Drum typs are popular for power inductor application. Many other shapes are also available.

• SMD power inductor

Samwha Electronics - Ferrite Core - Rod, Bar, Screw Core

• Rod, Bar, Screw Core

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• They are wuound directly on cores or using bobbins. Winding coils on core maks magentic field for sensor application.

• Rectangler and cylindrical types are manly used. Screw types is easy to control the characteristics by adjustion.

• They are used for smart key and censors.