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Soft Ferrite Cores

Soft Ferrite Materials and Cores

nZn Ferrite Material Characteristics MSB-7C HP400 HP-380 HP-300 HPT-450 HPT-400
Property Symbol Unit Test condition
Initial permeability (±25%) μi --- 0.1mT, 25℃ 2400 2200 2200 2200 2400 3000
Flux density (min) Bs mT 1200A/m, 25℃ 500 500 490 510 510 500
1200A/m, 100℃ 380 400 390 420 410 390
Relative loss factor (max) tanδ/μi 10-6 0.25mT, 10kHz, 25℃ 2 8 2 3   2
Relative loss factor (max) 0.25mT, 100kHz, 25℃ 5   3 4   3
Coercive Field (max) Hc A/m 10KHz, 25℃ 10 4 11 11 8 10
Hysteris material Coefficient (max) ηB 10-6/mT 25℃ 1.2 1.2 1 1 1.1 1.2
Curie Temperature (min) Tc --- 220 210 210 210 200 220
Density (min) d kg/m3 25℃ 4800 4850 4850 4850 4850 4800
Temperature Coeff. of permeability (max) αF 10-6/K -40 to 80℃ 4 4 4 4 2.5 1.5
Resisitivity (min) ρ Ωm 25℃ 5 5 5 8 3 7
Power loss (max) Pc mW/cc 16kHz, 150mT, 100oC 40          
100kHz, 200mT, 25oC         500 500
100kHz, 200mT, 100oC 600 400 380 300 450 400
400kHz, 200mT, 25oC            
400kHz, 200mT, 100oC            
Application: Power transformers grades
Properties are measured on Toroid T 30 X 20 X10 mm. Properties on actual product may vary depends on its size and shape.
**Properties are measured on Toroid T 10 X 04 X06 mm. Properties on actual product may vary depends on its size and shape.

nZn Ferrite Material Characteristics HB-040 HM-030 HM-040 HM-045 GQ5C HM-060 HM-070 HM-100**
Property Symbol Unit Test condition
Initial permeability (±25%) μi --- 0.1mT, 25℃ 3800 3000 4000 4500 5000 6000 7000 10000
Flux density (min) Bs mT 1200A/m, 25℃ 550 480 470 470 450 400 400 430
1200A/m, 100℃ 435 330 330 330 300 240 240 240
Relative loss factor (max) tanδ/μi 10-6 0.25mT, 10kHz, 25℃   3 3 3 3 5 5 3
Relative loss factor (max) 0.25mT, 100kHz, 25℃ 4 6 10 10 15 40 60 20
Coercive Field (max) Hc A/m 10KHz, 25℃ 15 15 3 3 3 5 4 4
Hysteris material Coefficient (max) ηB 10-6/mT 25℃ 0.3 0.3 0.8 1 0.8 0.6 0.5 0.2
Curie Temperature (min) Tc --- 205 180 170 170 140 130 120 120
Density (min) d kg/m3 25℃ 4900 4900 4900 4900 4900 4900 4900 4900
Temperature Coeff. of permeability (max) αF 10-6/K -40 to 80℃ 1.2 1.2 3 2.5 3 2 2 2
Resisitivity (min) ρ Ωm 25℃ 2 1 1 1 1 0.6 0.5 0.5
Power loss (max) Pc mW/cc 16kHz, 150mT, 100oC                
100kHz, 200mT, 25oC                
100kHz, 200mT, 100oC                
400kHz, 200mT, 25oC                
400kHz, 200mT, 100oC                
Application: Communication (Broad band filters)
Properties are measured on Toroid T 30 X 20 X10 mm. Properties on actual product may vary depends on its size and shape.
**Properties are measured on Toroid T 10 X 04 X06 mm. Properties on actual product may vary depends on its size and shape.

nZn Ferrite Material Characteristics HT-08 HT-020 HT-35 HR-4 HR-4B HQ-023
Property Symbol Unit Test condition
Initial permeability (±25%) μi --- 0.1mT, 25℃ 800 2000 3400 1200 2000 2300
Flux density (min) Bs mT 1200A/m, 25℃ 430 470 510 440 500 420
1200A/m, 100℃ 320 330 390 350 400 290
Relative loss factor (max) tanδ/μi 10-6 0.25mT, 10kHz, 25℃ 10 6 3 4 3 4
Relative loss factor (max) 0.25mT, 100kHz, 25℃ 10 10 10 4 5 6
Coercive Field (max) Hc A/m 10KHz, 25℃ 20 14 10 10 10 25
Hysteris material Coefficient (max) ηB 10-6/mT 25℃   2 1 -1 1.34  
Curie Temperature (min) Tc --- 190 170 200 240 210 170
Density (min) d kg/m3 25℃ 4850 4850 4800 4800 4800 4700
Temperature Coeff. of permeability (max) αF 10-6/K -40 to 80℃ ±3 ±0.4 2 8 13 3
Resisitivity (min) ρ Ωm 25℃ 10 1 1 4 4  
Power loss (max) Pc mW/cc 16kHz, 150mT, 100oC            
100kHz, 200mT, 25oC            
100kHz, 200mT, 100oC            
400kHz, 200mT, 25oC       10000 8000  
400kHz, 200mT, 100oC       7000 6000  
Application: RFID Antenna, Impeder cores and Inductors
Properties are measured on Toroid T 30 X 20 X10 mm. Properties on actual product may vary depends on its size and shape.
**Properties are measured on Toroid T 10 X 04 X06 mm. Properties on actual product may vary depends on its size and shape.

Chemistry of Soft ferrites:

Hinoday’s wide ranges of soft ferrite cores are made from Manganese Zinc Ferrite (MnZnFe12O9). Mn-Zn ferrites have Inverse Spinel structure resulting to the magnificent magnetic properties. The cubic crystal structure enables MnZn Ferrite to show isotropic crystalline properties leading to low coercive force and lower power loss. Chemistry of various soft ferrite grades are closely controlled by using X-ray Fluorescence Spectrometer (XRF).

Process of Ferrite magnet manufacturing:

Ferrite manufacturing is based on Ceramic Powder Technology. High quality Iron oxide, Manganese oxide and Zinc Oxide are homogenously mixed and reacted at controlled high temperature. The ferrite granules are crushed and consequently converted into ready to press powder by spray drying process. Powder compaction is done using precision presses. Sintering to achieve the required density, magnetic and dimensional features are done in precisely controlled furnaces. Sintered Ferrites are ground to achieve the required dimensions in close tolerances.

Quality System:

We are committed to quality and our quality policy is customer centered. Magnet manufacturing is supported by highest quality system, ISO-TS16948. Control Plans, APQP, PPAP, FMEA, Continuous Improvement, 8D problem analysis are inherent to Hinoday’s manufacturing.

Technology:

Ferrite core manufacturing is based on Ceramic Technology. Hinoday’s manufacturing is fully integrated with its R&D division and introduce technological advancements in the areas of process, products and new ferrite grades.

Ferrite Grades:

Hinoday is offers most of the Soft Ferrite grades required to meet customer demand for across-the-board ferrite core requirements for applications such as – SMPS and other Transformers, telecommunication, RFID, Antenna, Compact Fluorescent Lamps(CFL), Electrode less Lamps (ELL).

Material Application Core type
MSB-5S Current transformers- Energy meters Toroids
HM-040 Broadband transformers- Impedance Matching transformers Toroids, E Cores
HM-060
HM-070
HM-100
HB-040
MSB7C SMPS- Power transformers and chokes E, ETD, EER,EFD, EQ, EFD
HPT-450
HP380
HP300
HT20 RFID- Transponder cores Rods, Bars
HT-08
HM-045 Transformer Cores- CFL, ELL Toroids
HQ-023 High Q Inductors - Filters RM

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