Chang Sung Corporation manufactures four types of soft magnetic powder cores including the Molybdenum Permalloy

(MPP), High Flux, Sendust and Mega Flux , which are mainly used for inductors and transformers requiring low losses and

inductance stability under high DC bias conditions. A fully standardized production management system under strict

quality control of the raw materials (nickel, iron, molybdenum, aluminum and silicon) enables CSC to guarantee consistent

quality and thus build greater confidence in our company’s product line.

MPP

nickel, iron and molybdenum.

MPP cores exhibit a highly sustainable stability in temperature and inductance under high DC

magnetization or high DC Bias conditions. They offer the highest permeability among our

materials and the lowest core loss compared to any other core material. MPP cores are also

considered to be a premium material for direct current output inductors for SMPS including

high Q filters, loading coils and EMI/RFI filters. Finished toroid cores are coated with a gray

epoxy to provide dielectric protection and added physical strength.

HIGH FLUX

The 15,000 Gauss saturation level of High Flux cores has a higher energy storage capability

and more effective permeability when compared to the performance of gapped ferrite or

powdered iron cores of a similar size. The excellent DC bias characteristics and low core losses

of High Flux cores offer a reduction in size and the number of winding turns as well as superior

magnetic properties. CSC High Flux cores are excellent choices for applications such as PFC

reactors, switching regulator inductors, in-line noise filters, pulse transformers and flyback

transformers. Finished High Flux cores are coated with a Khaki epoxy and come in a variety of

shapes and sizes.

SENDUST

silicon and aluminum.

Near-zero magnetostriction makes Sendust cores ideal for eliminating audible noise in filter

inductors. Core losses of Sendust cores are significantly lower than those of powdered iron

cores. Especially Sendust E shapes provide a higher energy storage capability than gapped

Ferrite E cores. Gap losses and eddy current losses are minimized with Sendust E cores

compared to gapped ferrite E shapes. Sendust cores are a smart choice for PFC circuits. Other

major applications include switching regulator inductors, In-line noise filters, pulse

transformers and flyback transformers. Finished Sendust cores are coated in a black epoxy.

MEGA FLUX

CSC has developed new magnetic alloy powder cores for the first time in the world under the name of

Mega Flux . The innovative design of these unique cores includes a smaller size, higher current and

higher energy storage capability. Mega Flux cores have higher flux density than any other magnetic

material, 16,000Gauss compared to 15,000Gauss for High Flux cores and 10,000 Gauss for Sendust

cores. The extremely good DC bias characteristics provide the best solution for high end applications

such as buck/boost inductors for high power supply systems, smoothing chokes for inverters and

reactors for electric vehicles. Mega Flux cores pressed with no organic binder have significantly lower

core losses than powdered iron cores and Fe-Si strip cores. They also present excellent thermal

properties with no thermal aging effects. Finished Mega Flux cores are coated with a dark brown epoxy.

Outstanding products begin with a standardized

production line and a strict quality control process

MAGNETIC POWDER CORES

PRODUCT DESCRIPTION

MAGNETIC POWDER CORES

TECHNICAL DATA

Comparison of Core materials

Perm. ( )

Bs (G)

Core Loss

DC Bias

Relative Cost

Temp. Stability

Curie Temp ( )

MPP

14-200

7,000

Lower

Better

High

Best

450

High Flux

26-160

15,000

Low

Best

Medium

Better

500

Sendust

26-125

10,000

Low

Good

Low

Good

500

Mega Flux

26-90

16,000

Medium

Best

Low

Better

700

Iron

10-100

10,000

High

Poor

Lowest

Poor

770

Fe-si (Gapped)

18,000

High

Best

Lowest

Good

740

Amorphous (Gapped)

15,000

Low

Better

Medium

Good

400

Ferrite (Gapped)

4,500

Lowest

Poor

Lowest

Poor

100~300

Permeability vs DC Bias

Core Loss (at 50kHz)

06

Materials

Powder

Strip