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COMMON MODE NANOCRYSTALLINE CORES

FINEMET® FT-3K50T and FT-8K50D

Gapped core made from amorphous metalThese are brand new materials produced by applying a controlled magnetic field during annealing to industry leading thin nano crystalline ribbon. This provides a material that satisfies both high saturation magnetic flux density and high permeability. Other standard features: Low core loss, Low magnetostriction, Excellent temperature characteristics and small aging effects, Excellent high frequency characteristics and the Flexibility to control magnetic properties " B-H curve shape " during annealing process.

 

Material Properties

 

Material

Bsat(T)

Permeability at 10kHz

Permeability at 100kHz

Br/Bs

Saturation magnetostriction, λs (X 10^-6)

Coercive force, Hc (A/m)

FT-3KS

1.23

100,000

20,000

40

< 1

15

FT-3KM

1.23

70,000

15,000

50

< 1

2.5

FT-3K50T

1.23

50,000

31,000

10

< 1

1.2

FT-3KL

1.23

27,000

17,000

5

< 1

0.6

FT-8K50D

1.32

5,000

5,000

0.7

< 8

1.4

Nanocrystalline performance curves

BH loop, Perm and B saturaton detialls on FT-3K50T and FT-8K50D

Standard cores available:

Single-phase cores

For the designer interested in winding an inductor for a specific application we have available the following standard cores for single-phase requirements. These are toroidal shaped tape-wound cores made from nanocrystalline amorphous metal. The below table lists; Product code and part number for cores made with FT-3KM material.

 

Product Code P/N Finished Dimensions (mm) Ac
(mm2)
TYP		 Lm
(mm)
TYP		 Wt
(g)
TYP		 AL value (µH/n2)
A
±0.7		 B
±0.7		 C
±0.5		 D
±0.7		 E
REF		 F
REF		 G
REF		 10
kHz 
MIN		 100
kHz 
±30%
F1AH0538 FT-3KM K1208A 13.0 7.1 6.0 10.7 2.6 - 1.8 7.7 30.3 2.9 18.2 5.8
F1AH0692 FT-3KM K1208C 13.5 12.5 6.8 15.5 3.2 - 1.5 13.3 31.7 4.5 24.0 8.8
F1AH0654 FT-3KM K1812A 20.2 8.1 10.3 13.1 3.5 - 2.5 11.3 47.1 5.8 14.7 5.3
F1AH0693 FT-3KM K1912C 21.1 13.3 10.0 18.3 3.5 - 2.5 24.4 48.9 13.0 28.2 10.6
F1AH0694 FT-3KM K2313D 25.2 15.1 11.5 20.7 3.5 - 2.8 43.9 57.3 23.0 41.6 15.3
F1AH0695 FT-3KM K2214B 24.2 10.6 12.0 16.2 4.0 - 2.8 22.2 56.5 13.0 22.2 8.1
F1AH0696 FT-3KM K2515D 27.2 15.6 13.0 21.2 3.5 - 2.8 46.3 62.8 26.0 41.6 15.3
F1AH0697 FT-3KM K2818E 30.4 18.0 15.8 24.0 3.5 1.5 3.0 55.5 72.3 37.0 43.4 15.9
F1AH0699 FT-3KM K3819D 40.4 15.5 16.8 23.5 4.0 2.0 4.0 87.9 89.5 68.0 55.5 20.4
F1AH0700 FT-3KM K3824G 40.6 23.0 21.4 31.0 4.0 2.0 4.0 105.0 97.4 87.0 61.0 24.4
F1AH0701 FT-3KM K5328E 56.4 19.0 24.6 29.0 5.5 2.0 5.0 127.5 114.7 155.0 62.5 25.0

Three-phase cores

For the designer interested in winding an inductor for a specific application we have available the following standard cores for three-phase requirements. These are toroidal shaped tape-wound cores made from nanocrystalline amorphous metal. The below table lists; Product code and part number for cores made with FT-3KM material.
Product Code P/N Finished Dimensions (mm) Ac
(mm2)
TYP		 Lm
(mm)
TYP		 Wt
(g)
TYP		 AL value (µH/n2)
A
±0.7		 B
±0.7		 C
±0.5		 D
±0.7		 E
REF		 F
REF		 G
REF		 10
kHz
MIN		 100
kHz
±30%

F1AH0702

FT-3KM N2515D

 27.6 16.0 12.6 22.0 3.2 1.0 3.0 46.9 62.8 28 41.6 15.3

F1AH0703

FT-3KM N3320E

 35.6 17.4 19.0 27.0 3.2 1.5 4.0 73.1 73.3 56 49.7 19.9

F1AH0704

FT-3KM N4225E

 46.0 19.0 21.0 27.0 4.0 3.0 4.0 95.6 105.2 95 51.4 20.6

F1AH0705

FT-3KM N5034E

 54.0 19.0 30.0 29.0 4.0 - 5.0 90.0 131.9 110 38.6 15.4

F1AH0706

FT-3KM N6442E

 68.0 19.0 38.0 29.0 5.0 - 5.0 123.8 166.5 184 42.0 16.8

F1AH0708

FT-3KM N5434G

 58.0 25.0 30.0 47.0 6.2 8.0 7.0 150 138.0 210 64.1 24.5
Download EMC brochure for information on common mode components:  
Large Common Mode Choke Cores And Chokes Using Nanocrystalline Material

If you require much larger cores for common mode chokes with rated currents over 100Amps these cores offer you the size to solve these RF noise problems.

They can be used for signal lines, DC power lines, and AC power lines. Because of the low magnetostriction these core also provide low audible noise. Cores with base plate only, require cabling with the appropriate BIL insulation for the voltage being used. L type cores are used when a DC offset is present, see BH curves.
M type, core material in toroidal format
Product Code P/N Finished Dimensions (mm) AL value(µH/n2)
A
±0.7		 B
±0.7		 C
±0.5		 Ac
(mm2)
TYP		 Lm
(mm)
TYP		 Weight
(g)
TYP		 10
kHz
MIN		 100
kHz
±30%
F1AH0047 FT-3KM F2515D 28.0 ± 0.5 16.8 + 0.7 12.8 + 0.5 46.9 62.8 25 42.0~100.0 16.9 + 30%
F1AH0048 FT-3KM F3320E 35.8 ± 0.5 17.5 ± 0.7 17.3 ± 0.5 73.1 83.3 49 49.7~120.0 19.9 ± 30%
F1AH0049 FT-3KM F3724E 49.0 ± 0.5 17.6 ± 0.7 21.1 ± 0.5 73.1 95.8 59 43.0~100.0 17.3 ± 30%
F1AH0050 FT-3KM F4424G 46.5 ± 0.5 22.8 ± 0.6 21.1 ± 0.5 142.5 106.8 123 75.4~180 30.2 ± 30%
F1AH0018 FT-3KM F4535G 49.0 ± 0.5 25.0 ± 0.7 31.0 ± 0.5 75.0 125.7 89 34.0~80.0 13.5 ± 30%
F1AH0051 FT-3KM F4627H 50.0 ± 0.7 28.2 ± 1.0 23.4 ± 0.5 178.1 114.7 168 89.2~210.0 35.1 ± 30%
F1AH0019 FT-3KM F6045G 64.0 ± 0.7 25.0 ± 1.0 41.0 ± 0.7 112.5 164.9 162 39.0~90.0 15.4 ± 30%
F1AH0020 FT-3KM F7555G 79.0 ± 0.7 25.0 ± 0.7 51.0 ± 0.7 150 204.2 267 42.0~100.0 16.6 ± 30%
F1AH0052 FT-3KM F10080G 104.0 ± 0.7 25.0 ± 0.7 76.0 ± 0.7 138.8 285.1 336 30.0~65.0 12.0 ± 30%
F1AH0023 FT-3KM F140100 144.0 ± 1.0 35.0 ± 1.0 96.0 ± 0.7 427.5 380.1 1335 63.0~150.0 24.8 ± 30%
F1AH0024 FT-3KM F200160 204.0 ± 1.0 35.0 ± 1.0 156.0 ± 1.0 427.5 568.6 1875 42.0~100.0 15.1+50%,-30%

M type cores with base and base plate combined
With base plate Base and core combined
Product Code P/N Finished dimensions in mm
A
Max		 B
Max		 C
Max		 D
±0.5		 E
±0.3		 F
±0.5		 G
±0.5		 H
±0.5		 K
Min
F1AH0026 FT-3KM F6045GB 95.0 26.0 78.0 80.0 12.5 72.0 50.0 7.0 39.5
F1AH0027 FT-3KM F7555GB 121.0 30.0 100.0 100.0 - - - - 50.0
F1AH0053 FT-3KM F10080GB 161.0 32.0 122.0 140.0 - - - - 75.0
F1AH0029 FT-3KM F11080GB 181.0 26.0 131.0 150.0 12.5 124.0 100.0 20.0 74.0
F1AH0031 FT-3KM F140100PB 181.0 42.0 162.0 160.0 - - - - 95.0
F1AH0032 FT-3KM F200160PB 241.0 42.0 217.0 220.0 - - - - 155.0

 
Product Code P/N Ae
(mm2)
Typical		 Lm
(mm)
Typical		 Weight
(g)
Typical		 Applied
Screw		 AL value
(µH/N2)		 Shape
I J 10kHz 100kHz
F1AH0026 FT-3KM F6045GB 112.5 164.9 193.0 M4 M5 39.0 ~ 90 15.4 ±30% Combined
F1AH0027 FT-3KM F7555GB 150.0 204.2 377.0 – M6 42.0 ~ 100 16.6 ±30% Base Plate
F1AH0053 FT-3KM F10080GB 138.8 285.1 516.0 – M6 30.0 ~ 65 12.0 ±30% Base Plate
F1AH0029 FT-3KM F11080GB 213.8 300.8 613.0 M5 M6 40.2 ~ 95 16.1 ±30% Combined
F1AH0031 FT-3KM F140100PB 427.5 380.1 1595 – M6 63.0 ~ 150 24.8 ±30% Base Plate
F1AH0032 FT-3KM F200160PB 427.5 568.6 2235 – M6 42.0 ~ 100 15.1 +50%,-30% Base Plate
L type, core material in toroidal format
Product Code P/N Dimensions (mm) Ae
(mm2)
Typical		 Lm
(mm)
Typical 		Weight
(g)
Typical 		AL value (uH/N2)
A B C 10kHz 100kHz
F1AH0680 FT-3KL F3320E 35.8 ±0.5 17.5 ±0.7 17.3 ±0.5 73.1 83.3 49 17.8 ~ 33.0 18.8 ±30%
F1AH0681 FT-3KL F3724E 40.0 ±0.5 17.6 ±0.7 21.1 ±0.5 73.1 95.8 59 15.4 ~ 28.7 16.3 ±30%
F1AH0682 FT-3KL F4535G 49.0 ±0.5 25.0 ±0.7 31.0 ±0.5 75 125.7 89 12.1 ~ 22.4 12.8 ±30%
F1AH0683 FT-3KL F6045G 64.0 ±0.7 25.0 ±1.0 41.0 ±0.7 107.3 166 162 13.1 ~ 24.3 13.8 ±30%
F1AH0684 FT-3KL F7555G 79.0 ±0.7 25.0 ±0.7 51.0 ±0.7 146.3 205 267 14.4 ~ 26.8 15.2 ±30%
F1AH0685 FT-3KL F10080G 104.0 ±0.7 25.0 ±0.7 76.0 ±0.7 138.8 285.1 336 9.8 ~ 18.3 10.4 ±30%
F1AH0686 FT-3KL F140100 144.0 ±1.0 35.0 ±1.0 96.0 ±0.7 427.5 380.1 1335 22.8 ~ 42.3 24.0 ±30%
L type cores with base and base plate combined
With base plate Base and core combined
Product Code P/N Dimensions in mm
A
Max		 B
Max		 C
Max		 D
±0.5		 E
±0.3		 F
±0.5		 G
±0.5		 H
±0.5		 K
Min
F1AH0687 FT-3KL F6045GB 95.0 26.0 78.0 80.0 12.5 72.0 50.0 7.0 39.5
F1AH0688 FT-3KL F7555GB 121.0 30.0 100.0 100.0 - - - - 50.0
F1AH0690 FT-3KL F11080GB 181.0 26.0 131.0 150.0 12.5 124.0 100.0 20.0 74.0
F1AH0691 FT-3KL F140100PB 181.0 42.0 162.0 160.0 - - - - 95.0

 
Product Code P/N Ae
(mm2)
Typical		 Lm
(mm)
Typical 		Weight
(g)
Typical 		Applied Screw AL value (uH/N2) Shape
I J 10kHz 100kHz
F1AH0687 FT-3KL F6045GB 107.3 166.0 193.0 M4 M5 13.1 ~ 24.3 13.8 ±30% Combined
F1AH0688 FT-3KL F7555GB 146.3 205.0 377.0 - M6 14.4 ~ 26.8 15.2 ±30% Base plate
F1AH0690 FT-3KL F11080GB 213.8 300.8 613.0 M5 M6 14.4 ~ 26.7 15.2 ±30% Combined
F1AH0691 FT-3KL F140100PB 427.5 380.1 1595.0 - M6 22.8 ~ 42.3 24.0 ±30% Base plate

 

Download EMC brochure for information on common mode components:

Wound Common Chokes Using Nanocrystalline Material

Standard wound common mode and choke cores are available as standard products for DC and single-phase AC power lines (rated current from 5A to 40A), and for three-phase AC power line (rated current from 3A to 600A).
Single-phase horizontal mount Single-phase vertical mount
Three-phase wound components

Custom designs are available upon request, for your application you can pick the standard product that most closely meets your needs, or fill out our request form for a recommendation.

Typical applications include various portions of the power supply / inverter such as input single and three phase noise filters, active harmonic filters, output noise filters, DC Power Lines or Signal Lines.

 
Large Wound Components
Download EMC brochure for information on common mode components:
 
   

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Related products include: Common Mode Nanocrystalline Cores, Common Mode Components, Large Wound Components, Three-phase wound components, Wound Common Chokes Using Nanocrystalline Material, Three-phase cores, Single-phase cores