Alnico Magnets

According to the scope of application,our main products can be divided into the following groups:
1. Ferrite cores used fo audio and video electronics and switching power supplies-with excellent properties such as high saturation magnetic flux density,super low power loss and etc.a kind of product which output overwhelms other kinds in the corportation.
2. Ferrite cores used for traditional analog communication and modern digital communication-featuring stable properties and high liability.
3. Ferrite cores used for EMI suppression-featuring wide frequency band and high impedance-akind of electronic components which cannot be absent in the field related to electromagnetic compatibility.
4. Ferrite cores used for SMT-featuring light weight,small size and low mounting height-a kind of ferrite cores having boundless prospects.

Mnzn Core
Ferrite cores used for audio and video electronics and switching power supplies-with excellent properties such as high saturation magnetic flux density,super low power loss and etc.a kind of product with output over whelms other kinds in the corporation.
Material Characteristic of soft Mnzn ferrite

 
Characteristic Symbol Unit\Material R2KD R2KBD R2KB1 R1.8KB R1.4K
Initial permeability μi     2500¡À25% 2300¡À25% 1800¡À25% 1400¡À25%
Effective saturation magnetic flux density Bs mT 480800A/m 5101194A/m 5101194A/m 5101194A/m 4851600A/m
Effective retentivity Br mT 120 117 95 170 190
Effective coercivity Hc A/m 16 12 14.3 16 35
Core Less Pc KW/m3 16kHz150mT 25¡æ ¡Ü12*        
60¡æ ¡Ü11*        
100¡æ ¡Ü12*     4.2*  
25kHz200mT 25¡æ   130 120    
60¡æ   90 80    
100¡æ   100 70    
100kHz200mT 25¡æ   700 600    
60¡æ   500 450    
100¡æ   600 410 110*  
500kHz50mT 25¡æ         130
60¡æ         80
100¡æ         80
Curie temperature Tc ¡æ >200 >230 >215 >240 >240
Electrical resistivity ¦Ñ ¦¸¡¤m 1 10 6.5 3  
Density D Kg/m3 4.8 4.8 4.8 4.8 4.8

 

Ferrite cores used for traditional analog communication and modern digital communication featuring stable properties and high  liability.

Material Characteristic of High permeability Mnzn ferrite material

Characteristic Symbol Unit R5K R7K R10K R13K
Initial permeability ¦Ìi - 5500¡À25% 7000¡À25% 10000¡À25% 13000¡À25%
Relative loss factor tg¦Ä/¦Ìi ¡Á10-6 ¡Ü15(100kHz) ¡Ü7(10kHz) ¡Ü7(10kHz) ¡Ü7(10kHz)
Effective saturation magnetic flux density Bs mT 420(800A/m) 400(800A/m) 400(1194A/m) 360(1194A/m)
Effective retentivity Br mT 150 90 90 100
Effective coercivity HcB A/m 8 10.4 7.2 4.4
Temperature Factor of permeability ¦Á¦Ì ¡Á10-6 0~1.5 0~2 -0.5~1.5 -0.5~1.5
¡æ 20~60 20~55 20~70 20~70
Disaccommodation Factor DF ¡Á10-6 ¡Ü3 ¡Ü3 ¡Ü2 ¡Ü2
Curie Temperature Tc ¡æ >140 >125 >120 >110
Resistivity ¦Ñ ¦¸¡¤m 0.3 0.3 0.15 0.15
Density d g/m3 4.9 4.9 4.9 4.9
             

 

Ferrite cores used for EMI suppression featuring wide frequency band and high impedance a kind of electronic components which can not be absent in the field related to electromagnetic compatibility.
Ferrite cores used for SMT featuring light weight,small size and low mounting height a kind of ferrite cores having boundless prospects.

Nizn Core
Nizn ferrite material have the advantage of high resistivity,high curie temperature,low temperature factor,low relative loss,good high permeability feature,which be widely used in home communication appliance,computer etc area.we are specialized in exporting the all kind of high performance Nizn series core,Initial permeability begin from 80 to 2000.Practical frequency from 1kHz to 100MHz.
Material Characteristic of Soft Nizn ferrite material

Characteristic Symbol Unit Material
R10 R20B R40C R40D R100A      
Practical frequency - MHz <150 <60 <60 <35 <35
Initial permeability ¦Ģi - 10¡À20% 20¡À20% 40¡À20% 45¡À20% 100¡À20%
Relative loss factor tg¦Ä/¦Ìi ¡Á10-6 ¡Ü660 ¡Ü330 ¡Ü80 ¡Ü100 ¡Ü80
Relative loss factor     (7.95MHz) (2.52MHz) (2.52MHz) (2.52MHz) (2.52MHz)
Effective saturation magnetic flux density Bs mT - 270(4000A/m) 300(4000A/m) 300(4000A/m) 350(4000A/m)
Temperature Factor of permeability ¦Á¦Ì ¡Á10-6 ¡Ü150 ¡Ü15 ¡Ü25 ¡Ü8 ¡Ü10
¡æ 20~60 20~60 20~60 -5~45 20~60    
Curie Temperature Tc ¡æ >460 >400 >350 >400 >350
Resistivity ¦Ñ ¦¸¡¤m 105 104 104 104 104
Density d g/m3 4.5 4.5 4.5 4.5 4.5

 

 

Characteristic Symbol Unit Material
R100B R250B R500 R750 R1K R1.5KB      
Practical frequency - MHz <10 <10 <2 <1.5 <1.5 <1.0
Initial permeability ¦Ìi - 100¡À20% 250¡À20% 500¡À20% 750¡À20% 1000¡À20% 1500¡À20%
Relative loss factor tg¦Ä/¦Ìi ¡Á10-6 ¡Ü55(2.52MHz) ¡Ü40(0.795MHz) ¡Ü30(100MHz) ¡Ü25(100MHz) ¡Ü40(100MHz) ¡Ü30(100MHz)
Effective saturation magnetic flux density Bs mT 300(4000A/m) 370(1600A/m) 300(1600A/m) 310(1600A/m) 350(4000A/m) 280(1600A/m)
Temperature Factor of permeability ¦Á¦Ì ¡Á10-6 ¡Ü4.5 ¡Ü6 ¡Ü8 ¡Ü4 ¡Ü5 ¡Ü4
¡æ 20~60 20~60 20~60 -5~45 20~60 20~60
Curie Temperature Tc ¡æ >300 >250 >150 >150 >150 >150
Resistivity ¦Ñ ¦¸¡¤m 104 104 105 105 105 105
Density d g/m3 4.5 4.6 5.0 5.0 5.0 4.8

 

 


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