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Nickel-Zinc Ferrites for Industrial
and Professional Applications

  Applications guide   Short and medium wave antennae, EM suppression, High frequency inductors and transformers
Parameter   Symbol   Standard Conditions
of Test
  Unit   FF1   F53   F52   FA1   F24   F14   F01P   F21P   F31P
Initial Permeability
(nominal)
  µ   B<0.1mT  10kHz
25°C
  -   1500
± 20%
  1050
± 20%
  850
± 20%
  370
± 20%
  350
± 20%
  220
± 20%
  120
± 20%
  40
± 20%
  15
± 20%
Saturation Flux
Density (typical)
  Bsat   H=796 A/m  10 Oe
25°C  Static  100°C
  mT   230*   210   210   310   350*   350   280   240   220
Remanent Flux
Density (typical)
  Br   H–›0 (from near saturation)
10 kHz 25°C
  mT   175   130   130   270   200   217   190   155   135
Coercivity (typical)   Hc   B–›0 (from near saturation)
10 kHz 25°C
  A/m   30   50   50   60   65   172   30   1200   1600
Loss
Factor
(maximum)
  Loss Factor Equation   100 kHz  B<0.1mT  25°C
250 kHz
400 kHz
500 kHz
1 MHz
2 MHz
3 MHz
5 MHz
10 MHz
15 MHz
20 MHz
40 MHz
100 MHz
200 MHz
  10-6   140
-
-
-
-
-
-
-
-
-
-
-
-
-
  26
-
-
-
-
-
-
-
-
-
-
-
-
-
  26
-
-
-
-
-
-
-
-
-
-
-
-
-
  -
-
65
-
-
-
-
-
-
-
-
-
-
-
  -
-
-
-
-
-
-
-
-
-
-
-
-
-
  -
-
-
40
42
50
-
-
-
-
-
-
-
-
  -
-
-
-
-
45
-
-
-
-
-
-
-
-
  -
-
-
-
-
50
50
55
65
75
100
125
300
 
   
 
 
 
 
 
 
 
 
 
 
225
 
 
Temperature Factor   Temperature Factor Equation   B<0.1mT  10kHz
+25°C to +55°C
  10-6/°C   -   -   -   -   -   12 to 30   -   -   -
Curie Temperature (minimum)   TC   B<0.1mT  10kHz   °C   80   100   100   180   180   140   300   300   400
Resistivity (typical)   rho   1 V/cm  25°C   omega-cm   5x108   1x106   1x106   1x108           1x107   1x106   52x104
  * Bsat measured at H=1200 A/m
Bsat measured at H=4000 A/m

P - These are perminvar ferrites and undergo irreversible changes of characteristics (µ increases and loss factors become much greater - especially at high frequencies) if subjected to strong magnetic fields or mechanical shock.

Data is derived from measurements on toroidal cores. These values cannot be directly transferred to products of another shape and size. The product related data can be taken only from the relevant product specifications.

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MMG-North America
126 Pennsylvania Ave   •   Paterson, NJ 07503   •   United States
Tel: (973) 345-8900   •   Fax: (973) 345-1172
Mail us: sales@mmgna.com