Applications guide
Power/Switching
Transformers, Differential Mode Chokes
Output Chokes
Wideband Transformers, Pulse Transformers, Common Mode Chokes
Current Sensing Devices,
RFI Suppression
Parameter
Symbol
Standard Conditions
of Test
Unit
F47
F44
F5
F5A
F6
F9
F9C
F10
F57
F39
F8
P10
P11
P12
F58
FB2
FB3
F9Q
F9N
F65*
F82
FT6
FT7
FTA
Initial Permeability
(nominal)
µi
B<0.1mT 10kHz
25°C
-
1800
± 20%
1900
± 20%
2000
± 20%
2500
± 20%
1800
± 20%
4400
± 20%
5000
± 20%
6000
± 20%
7500
± 25%
10000
± 30%
1200
min
2000
± 20%
2250
± 20%
2000
± 20%
750
± 20%
2000
± 20%
2700
± 20%
2300
± 20%
4000
± 20%
4400
± 40%
5000
± 20%
6000
± 20%
7500
± 25%
10000
± 30%
Saturation Flux
Density (typical)
Bsat
H=796 A/m 10 Oe
25°C Static 100°C
mT
470
350
500
400
470
350
470
350
350
-
380
-
460
-
380
-
380
-
380
-
380
-
-
-
-
-
-
-
>420
480
480
350*
-
410
-
350
460
430†
420
420
Remanent Flux
Density (typical)
Br
H–›0 (from near saturation)
10 kHz 25°C
mT
130
270
200
150
-
180
170
100
250
200
-
120
70
35
-
140
140
190
270
100
170
150
130
180
Coercivity (typical)
Hc
B–›0 (from near saturation)
10 kHz 25°C
A/m
24
27
21
15
-
13
13
14
17
16
-
22
18
7
-
10
10
24
15
14
13
15
10
8
Loss
Factor
(maximum)
B<0.1mT 25°C
10 kHz
100 kHz
200 kHz
1 MHz
10-6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
20
-
-
-
20
-
-
-
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
6
15
-
-
1.5
5
-
-
0.8
2.5
-
-
-
-
-
-
30
-
-
-
15
-
-
-
-
20
-
-
-
30
-
-
-
20
-
-
-
20
-
-
-
25
6
50
-
-
6
50
-
-
Temperature Factor
B<0.1mT 10kHz
+25°C to +55°C
B<0.1mT 10kHz
0°C to +25°C
10-6/°C
-
-
-
-
-
-
-
-
-
-
0 to 2
-
-1 to +2
-
-1 to +2
-
-
-
-
-
-
-
0 to 2
-
.5 to 1.5
-
.4 to 1.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-1 to +2
-
-
-
-
-
-1 to 0
-0.5 to +0.5
Curie Temperature (minimum)
TC
B<0.1mT 10kHz
°C
200
230
200
200
180
130
160
130
125
125
130
150
150
150
310
230
230
140
150
>150
160
140
150
150
Disaccomodation
Factor (max)
B<0.25mT 10kHz
50°C 10 to 100 mins
10-6
-
-
-
-
-
-
-
-
-
-
-
8
4
3
-
-
-
-
-
-
-
-
-
-
Hysteresis Material
Constant (max)
B from 1.5 to 3mT 10kHz
25°C
10-6/mT
-
-
-
-
-
-
-
-
-
-
-
2.4
0.8
0.45
-
-
-
-
-
-
-
-
-
-
Resistivity (typical)
1V/cm 25°C
-cm
100
100
100
100
100
50
50
50
100
100
100
100
100
100
100
100
100
20
20
20
50
20
10
10
Amplitude
Permeability
(minimum)
µa
400mT 25°C
320mT 100°C
340mT 100°C
µa
-
-
-
2500
-
1900
2500
-
1900
Total Power
Loss Density
(maximum)
Pv
200mT; 16kHz : 25°C
200mT; 16kHz : 60°C
200mT; 16kHz : 100°C
200mT; 25kHz : 25°C
200mT; 25kHz : 60°C
200mT; 25kHz : 100°C
100mT; 100kHz : 25°C
100mT; 100kHz : 100°C
200mT; 100kHz : 100°C
50mT; 400kHz : 25°C
50mT; 400kHz : 100°C
mW/cc
-
-
-
-
-
-
-
-
-
-
-
-
-
-
200
-
130
250
160
750
-
-
-
-
-
200
-
130
250
160
750
-
-
* Bsat measured at H=1200 A/m
† Bsat measured at H=4000 A/m