|
Magnetic Metals introduces a new line of toroidal cores utilizing the superior performance of amorphous alloy. This new product line is called HFC; High Frequency Choke.
The advantages of an HFC core are its high saturation flux density, low core losses, high DC Bias characteristic, and excellent inductance stability at elevated temperatures.
Magnetic Metals offers ten standard sizes of cores in the HFC series, with three different permeability values. This provides engineers with a wide selection for their designs.
HFC cores are in stock and ready to ship.
Applications:
- Output Inductors.
- Storage Inductors.
- DC Inductors.
- In-line noise filter.
- Fly back transformers.
- Pulse Transformers.
Core Identification
HFC cores have unique part number designations that provide important information about the cores. A description of the core’s part number is provided below.
Features and benefits of HFC cores:
- HFC have low core loss especially at high frequencies, this special feature is ideal for many applications looking to reduce heat dissipation.
- HFC cores have Saturation Flux Density of 15.6 KGauss as compared to 8 KGauss for MPP cores or 4KGauss for Ferrite cores. This feature will reduce the core size significantly in many applications and provides a higher energy storage capability than any other materials.
- HFC cores have very low residual flux density or very large Delta B, this feature is excellent for Power Factor correlation circuits or unidirectional drive applications such as flyback transformers and pulse transformers.
- HFC cores offer outstanding DC bias and temperature stability characteristics in comparison to any powder cores.
Magnetic Characteristics:
- Composition: amorphous alloy 2605SA1, 1 mil thick
- Saturation flux density Bs = 15.6 KGauss
- Operating Frequency limit: 500 KHz
- Operating temperature 170C
- AL tolerance +/- 10%
Comparison of HFC cores with other products:
|
Magnetic characteristic
|
HFC series Cores
|
MPP Cores
|
High Flux Cores
|
|
Saturation Flux Density (Bsat)
|
15.6 KGauss
|
8 KGauss
|
15 KGauss
|
|
Perm vs. DC bias
|
Best
|
Good
|
Better
|
|
Temperature stability
|
Best
|
Best
|
Good
|
|
Withstands high shock and vibration
|
Best
|
Good
|
Good
|
|
Permeability range
|
200-300
|
14-550
|
14-160
|
Core Data
|
|
Finished Dimensions
|
Core Data
|
Wa
|
WaAc
|
|
Core P/N
|
OD
|
ID
|
HT
|
Lm
|
Ac
|
Weight
|
IN2 / CM2
|
IN4 / CM4
|
|
2P9101
|
0.825 (in)
|
0.435 (in)
|
0.2 (in)
|
1.96 (in)
|
.0116 (IN2)
|
.0081 (LB)
|
0.149
|
.0017
|
|
20.96 (mm)
|
11 (mm)
|
5.08 (mm)
|
4.99 (cm)
|
0.075 (cm2)
|
3.66 (gram)
|
0.961
|
.0724
|
|
64P9101
|
0.84 (in)
|
0.42 (in)
|
0.33 (in)
|
1.96 (in)
|
.0234 (IN2)
|
.016 (LB)
|
0.139
|
.0032
|
|
21.36 (mm)
|
10.67 (mm)
|
8.38 (mm)
|
4.99 (cm)
|
0.151(cm2)
|
7.31 (gram)
|
0.897
|
.135
|
|
67P9101
|
0.945 (in)
|
0.57 (in)
|
0.33 (in)
|
2.35 (in)
|
.0235 (IN2)
|
.019 (LB)
|
0.255
|
.006
|
|
24 (mm)
|
14.47 (mm)
|
8.38 (mm)
|
5.98 (cm)
|
0.152 (cm2)
|
8.77(gram)
|
1.645
|
.25
|
|
3P9101
|
1.085 (in)
|
0.55 (in)
|
0.33 (in)
|
2.55 (in)
|
.035 (IN2)
|
.024 (LB)
|
0.238
|
.0083
|
|
27.56 (mm)
|
13.97 (mm)
|
8.38 (mm)
|
6.48 (cm)
|
0.227 (cm2)
|
10.70(gram)
|
1.536
|
.349
|
|
32P9101
|
1.085 (in)
|
0.57 (in)
|
0.465 (in)
|
2.55 (in)
|
.053 (IN2)
|
.047 (LB)
|
0.255
|
.0135
|
|
27.56 (mm)
|
14.48 (mm)
|
11.81 (mm)
|
6.48 (cm)
|
0.34 (cm2)
|
21.4(gram)
|
1.645
|
.559
|
|
27P9101
|
1.093 (in)
|
.670 (in)
|
.465 (in)
|
2.749 (in)
|
.035 (IN2)
|
.026 (LB)
|
.353
|
.01628
|
|
27.76 (mm)
|
17.02 (mm)
|
11.81 (mm)
|
6.98 (mm)
|
.227 (cm2)
|
11.8 (gram)
|
2.278
|
.677
|
|
41P9101
|
1.220 (in)
|
.670 (in)
|
.465 (in)
|
2.945 (in)
|
0.053 (IN2)
|
.041 (LB)
|
0.358
|
.019
|
|
30.99 (mm)
|
17.02 (mm)
|
11.81 (mm)
|
7.48 (cm)
|
0.34 (cm2)
|
18.6 (gram)
|
2.31
|
.785
|
|
28P9101
|
1.343 (in)
|
0.795 (in)
|
0.465 (in)
|
3.33 (in)
|
.053 (IN2)
|
.062 (LB)
|
0.496
|
.0265
|
|
34.11 (mm)
|
20.19 (mm)
|
11.81 (mm)
|
8.48 (cm)
|
0.34 (cm2)
|
27.98(gram)
|
3.2
|
1.088
|
|
362P9101
|
1.345 (in)
|
0.665 (in)
|
0.63 (in)
|
3.14 (in)
|
.094 (IN2)
|
.103 (LB)
|
0.347
|
.0326
|
|
34.16 (mm)
|
16.89 (mm)
|
16 (mm)
|
7.98 (cm)
|
0.605 (cm2)
|
46.81(gram)
|
2.239
|
1.355
|
|
62P9101
|
1.593 (in)
|
0.92 (in)
|
0.63 (in)
|
3.92 (in)
|
.094 (IN2)
|
.129 (LB)
|
0.665
|
.063
|
|
40.46 (mm)
|
23.37 (mm)
|
16 (mm)
|
9.97 (cm)
|
0.605 (cm2)
|
58.52(gram)
|
4.291
|
2.6
|
Lm = Mean magnetic path length
Ac = Net cross-sectional area
Wa = Core window area
WaAc = Product handling capability
Magnetic Data
|
Core P/N **
|
Perm **
|
AL*(nH/N2)
|
Perm **
|
AL*(nH/N2)
|
Perm **
|
AL*(nH/N2)
|
|
2P9101
|
200
|
38
|
250
|
48
|
300
|
57
|
|
64P9101
|
200
|
76
|
250
|
95
|
300
|
114
|
|
67P9101
|
200
|
64
|
250
|
80
|
300
|
96
|
|
3P9101
|
200
|
88
|
250
|
110
|
300
|
132
|
|
32P9101
|
200
|
132
|
250
|
165
|
300
|
198
|
|
27P9101
|
200
|
82
|
250
|
102
|
300
|
123
|
|
41P9101
|
200
|
114
|
250
|
143
|
300
|
171
|
|
28P9101
|
200
|
101
|
250
|
126
|
300
|
152
|
|
362P9101
|
200
|
191
|
250
|
239
|
300
|
286
|
|
62P9101
|
200
|
153
|
250
|
191
|
300
|
229
|
|
Color code
|
White
|
|
Yellow
|
|
Green
|
|
* AL = Inductance measured with one turn, at 10 kHz, and tolerance of +/-10%
** Please contact factory for other sizes and permeability not listed.
Click here to download a pdf version of this page.
|
