Introduction:
Permalloy refers to an iron-nickel alloy with a wide range of nickel content, ranging from 35% to 90%. The biggest feature of Permalloy is its high magnetic permeability in weak magnetic fields. Their saturation magnetic induction intensity is generally between 0.6-1.0T.This type of alloy is suitable for transformers, chokes, magnetic heads, magnetic shields, etc. In addition, by forming a cubic texture, the loop of this type of alloy can also be rectangular; at the same time, the order of the alloy is controlled to make K1≥O, and it shows good dynamic characteristics. It is very suitable for magnetic modulators, etc. . The powder core made by adding 2% of 80%~82% Ni-Fe alloy powder has high resistance and good stability, and can be used at a frequency of 300Hz.
Permalloy are used to harvest energy the electromagnetic ring with 1J85 grade strips:
- Very high permeability and low iron loss under weak magnetic field.
- Very good corrosion resistance
- Can be used in outdoor and humid environment
- Suitable for small current inductors
Permalloy core can be customised
| Size ( d * D * B )(mm) |
Cross-sectional area(mm²)
|
Weight(g)
|
Inductance（uH）(1K 1V 25℃) |
Magnetic circuit length（mm） |
| 45*76*40 |
620 |
973.46 |
70.6 |
189.97 |
| 52*790*40 |
540 |
917.93 |
56.7 |
205.67 |
| 55*95*20 |
400 |
778.56 |
34.7 |
235.5 |
| 42*72*25 |
375 |
554.73 |
49.5 |
178.98 |
| 48*78*25 |
375 |
613.12 |
37.3 |
197.82 |
| 54*84*25 |
375 |
671.51 |
33.1 |
216.66 |
| 55*80*28 |
350 |
613.12 |
38.7 |
211.95 |
| 54*79*28 |
350 |
604.04 |
38.7 |
208.81 |
| 65*90*25 |
312.5 |
628.53 |
29.2 |
243.35 |
| 65*90*20 |
250 |
502.82 |
31.9 |
234.35 |
| 55*75*25 |
250 |
421.72 |
24.7 |
204.1 |
| 55*75*20 |
200 |
337.38 |
25.8 |
204.1 |
| 65*90*15 |
187.5 |
377.12 |
21.4 |
243.35 |
| 55*75*15 |
150 |
253.03 |
21.5 |
204.1 |
| 48*68*15 |
150 |
225.78 |
22.4 |
182.12 |
| 38*59*12 |
126 |
158.59 |
22.3 |
152.29 |
| 70*85*15 |
112.5 |
226.27 |
6.9 |
243.35 |
| 29*50*10 |
105 |
107.64 |
15.7 |
124.03 |
| 127.5*115.5*10.5 |
62.4 |
196.76 |
3.2 |
381.51 |
| 59*69*8 |
40 |
66.44 |
5.7 |
200.96 |
| 52*40*6 |
36 |
42.89 |
5.1 |
144.44 |
| 38*47*4 |
18 |
19.85 |
3.5 |
133.45 |
Application:
The permalloy core are suitable for the application in weak magnetic field, can be used for manufacturing high sensitivity and small power transformer, low power magnetic amplifier, relay, head of magnetic recording device, zero sequence current transformer, power converter, precision current transformer, magnetic amplifier, power transformer, choke, pulse transformer, change polarity pulse transformer, DC voltage converter, magnetic modulator, constant inductance element, unipolar pulse transformer, magnetic shielding, and so on.
Hemei Electronics is a leading manufacturer of Permalloy energy harvesting current transformer rings in China, adapting to the needs of various customers, with highly advantageous performance, welcome to contact us!
