Ring band cores and cut band cores

Megatron offers amorphous cut ribbon cores and toroidal ribbon cores for compact, efficient magnetic solutions. High saturation induction, low losses and flexible design - ideal for modern power applications.

Cut ribbon cores
Amorphous cut ribbon cores offer high saturation induction, low losses and can be precisely adjusted via the air gap. They enable compact, copper-efficient chokes in AMCC, IEC and special shapes.
Applications: PFC and storage chokes, solar inverters, drives, devices with high current ripple.

Toroidal cores
Made of amorphous or nanocrystalline materials; the closed ring shape reduces stray fields and ensures stable magnetic properties.
Advantages: high permeability, compact, low losses.
Applications: current-compensated chokes, current/measurement transformers, pulse and power transformers.

New: variants with higher permeability, smaller designs, optimized materials for even lower losses.

With the relatively high magnetostriction, amorphous iron-based alloys convince with high saturation induction at low cost.

Small sizes (and thus low costs) are achieved by maximum utilization of the copper winding space with simultaneous maximum modulation.

Also available are customized dimensions according to your specifications. We will advise you and provide you with a non-binding offer.

Data sheets
Infocenter

Standard products Cutting band cores - types: AMCC 4 to AMCC 1000

Standard products NANOKRISTALLINE and AMORPHE RINGBAND CORE

Amorphous metals (VITROVAC®)

Extremely fast solidified tapes, used for special chokes and research applications.

Nanocrystalline alloys (VITROPERM®)

High saturation induction, high permeability and optimum HF behavior. Available in many sizes and coatings.

Crystalline alloys (ULTRAPERM®)

Today mostly replaced by nanocrystalline materials, but remain important for special applications.

Properties of materials for toroidal tape cores
Designation Composition μmax
(50 Hz)		 μi
(10 kHz)		 HC
[A/m]		 BS
[T]		 TCurie
[°C]		 Density
[g/cm³]
ULTRAPERM® 250** 80 % NiFe 400000 - 0,3 0,78 400 8,7
VITROPERM® 800 F Fe nano 150000 - 0,5 1,20 600 7,35
VITROPERM® 500 F Fe nano - 20000...100000* 0,5 1,20 600 7,35
VITROPERM® 250 F Fe nano - 4000 1,0 1,20 600 7,35
VITROPERM® 500 Z Fe nano - - 0,5 1,20 600 7,35
VITROVAC® 6025 Z Co amorphous - - 0,3 0,56 240 7,7
* Permeability level is adjusted by heat treatment
** Largely substituted by nanocrystalline RBK
Part numberCore dimensionsSinceTueHAFelFemFeAL_10kHzAL_100kHzIcm_10kHzIcm_100kHz
T60006-L2009-W9149.8 x 6.5 x 4.511.25.15.80.062.61.125.56.40.20.4
T60006-L2012-W90212 x 8 x 4.514.16.66.30.073.11.728.06.80.20.4
T60006-L2012-W49812.5 x 10 x 514.38.57.00.053.51.310.03.60.40.8
T60006-L2014-V09814.4 x 11.4 x 3.216.59.65.00.044.11.110.52.60.20.4
T60006-L2015-W86515 x 10 x 4.517.17.96.50.093.92.627.06.70.30.5
T60006-L2016-W40316 x 10 x 617.98.18.10.144.14.043.010.10.30.6
T60006-L2016-W30816 x 10 x 617.98.18.10.144.14.011.76.51.21.7
T60006-L2016-V16516 x 10 x 617.98.18.10.144.14.02.12.05.45.6
T60006-L2017-W51517.5 x 12.6 x 619.011.08.00.124.74.130.06.90.30.7
T60006-L2019-V18419 x 15 x 521.213.07.30.085.33.118.04.40.40.7
T60006-L2019-W83819 x 15 x 1021.213.012.30.165.36.336.18.80.40.7
T60006-L2020-W40920 x 12.5 x 822.610.310.20.245.19.055.213.60.40.7
T60006-L2020-W45020 x 12.5 x 822.610.310.20.245.19.014.39.11.42.1
T60006-L2025-W52325 x 20 x 1027.617.412.80.27.110.428.47.30.61.1
T60006-L2025-W38025 x 16 x 1027.913.612.50.366.417.065.515.50.40.9
T60006-L2025-W45125 x 16 x 1027.913.612.50.366.417.017.011.51.72.6
T60006-L2025-W98025 x 16 x 1027.913.612.50.366.417.03.23.19.39.6
T60006-L2030-W42330 x 20 x 1032.817.612.50.47.923.059.314.00.51.0
T60006-L2030-W35830 x 20 x 1032.817.612.50.47.923.015.511.12.13.1
T60006-L2030-W98130 x 20 x 1032.817.612.50.47.923.02.92.811.411.8
T60006-L2030-W51430 x 20 x 1532.817.517.80.577.933.088.020.00.51.1
T60006-L2030-V12930 x 20 x 1532.817.517.80.577.933.015.714.13.03.9
T60006-L2040-W42240 x 32 x 1543.128.718.50.4611.338.047.211.10.81.5
T60006-L2040-V11340 x 32 x 1543.128.718.50.4611.338.013.08.42.94.5
T60006-L2040-W96440 x 32 x 1543.128.718.50.4611.338.02.32.216.617.1
T60006-L2040-W42440 x 25 x 1543.122.518.50.8610.264.0101.023.10.71.4
T60006-L2040-W45340 x 25 x 1543.122.518.50.8610.264.025.417.22.94.2
T60006-L2045-V10245 x 30 x 1548.326.418.20.8611.874.087.520.30.81.6
T60006-L2045-V11845 x 30 x 1548.326.418.20.8611.874.024.315.93.04.5
T60006-L2045-V10145 x 30 x 1548.326.418.20.8611.874.015.714.34.65.8
T60006-L2050-W56550 x 40 x 2053.536.323.40.7614.179.018.010.03.55.3
T60006-L2050-W51650 x 40 x 2053.536.323.40.7614.179.045.314.01.42.7
T60006-L2050-V14650 x 40 x 2053.536.323.40.7614.179.011.710.05.47.0
T60006-L2050-V16650 x 40 x 2053.536.323.40.7614.179.03.13.019.520.5
T60006-L2054-V17254 x 40 x 2057.537.724.11.0614.8115.087.019.90.71.4
T60006-L2054-V17854 x 40 x 2057.537.724.11.0614.8115.024.015.73.75.7
T60006-L2063-W51763 x 50 x 2567.346.528.61.2417.8161.058.618.11.83.5
T60006-L2063-V11063 x 50 x 2567.346.528.61.2417.8161.023.313.54.46.7
T60006-L2063-V14463 x 50 x 2567.346.528.61.2417.8161.015.113.56.88.8
T60006-L2063-W98563 x 50 x 2567.346.528.61.2417.8163.03.33.230.230.9
T60006-L2080-V14080 x 50 x 2085.844.625.52.2820.4342.094.028.01.42.8
T60006-L2080-W53180 x 50 x 2086.044.725.72.2820.4342.035.024.05.58.2
T60006-L2080-V09180 x 50 x 2086.044.725.72.2820.4347.09.69.226.427.3
T60006-L2090-W51890 x 60 x 2095.454.724.72.2823.6395.081.025.12.44.5
T60006-L2090-V17390 x 60 x 2095.454.724.72.2823.6400.032.521.15.89.0
T60006-L2090-W98490 x 60 x 2095.454.724.72.2823.6400.04.64.540.941.8
T60006-L2100-V081100 x 80 x 25105.575.029.61.928.3379.014.513.110.913.8
T60006-L2100-V082100 x 80 x 25105.575.029.61.928.3379.056.316.92.85.3
T60006-L2102-W468102 x 76 x 25108.170.030.32.4728.0508.068.821.63.86.7
T60006-L2102-V080102 x 76 x 25108.170.030.32.4728.0508.019.117.210.713.6
T60006-L2102-W947102 x 76 x 25108.170.030.32.4728.0515.04.34.247.448.5
T60006-L2160-V066160 x 130 x 25166.9123.930.52.7445.6917.012.911.717.622.3
T60006-L2160-V088160 x 130 x 25166.9123.930.52.7445.6917.020.113.111.317.1
T60006-L2160-V074160 x 130 x 25166.9123.930.52.7445.6917.026.813.78.413.6
T60006-L2160-W982160 x 130 x 25166.9123.930.52.8545.6967.03.02.979.381.1

VF cores with µ-level 66500 (10 kHz)

 

Part numberNominal dimensionAFelFemFeAL_100kHzIGegentakt_mA
030-W91130 x 20 x 100.47.924.213.43443
050-W58350 x 40 x 200.7314.179.310.06184
063-W72163 x 50 x 200.9517.8130.010.47806
080-W72280 x 63 x 201.2422.5215.010.79867
100-W723100 x 80 x 201.4628.3318.010.012411
130-W567130 x 100 x 252.8536.1792.015832
130-W587130 x 100 x 252.7436.1762.014.715832
160-W720160 x 130 x 252.7445.6962.011.719998
194-W908194 x 155 x 253.7154.81565.013.224033

 

VF cores with µ-level 26500 (10 kHz)

Part numberNominal dimensionAFelFemFeAL_100kHzIGegentakt_mA
016-W61916 x 12.5 x 60.084.52.83.91737
025-W62125 x 20 x 100.197.110.45.82753
040-W62340 x 32 x 150.4411.338.18.44381
045-W88645 x 32 x 150.7112.166.212.84691
050-W62550 x 40 x 200.7314.179.311.25467
063-W62763 x 50 x 200.9517.8130.011.66901
080-W62880 x 63 x 201.2422.5215.012.08723
100-W629100 x 80 x 201.4628.3318.011.210972
130-W630130 x 100 x 252.7436.1762.016.513996
160-W631160 x 130 x 252.7445.6962.013.117679

 

Part numberCore dimensionsSinceTueHAFelFeAL_100kHzIcmmFe
T60006-L2016-V16516 x 10 x 617.98.18.10.144.082.05.64.4
T60006-L2025-W98025 x 16 x 1027.913.612.50.366.443.19.617.3
T60006-L2030-W98130 x 20 x 1032.817.612.50.47.852.811.823.4
T60006-L2040-W96440 x 32 x 1543.328.818.30.4611.32.217.138.4
T60006-L2050-V16650 x 40 x 2053.536.323.40.7614.13.020.580.0
T60006-L2063-W98563 x 50 x 2567.346.528.61.2417.83.330.9163.0
T60006-L2080-V09180 x 50 x 2085.844.625.52.2820.49.227.3347.0
T60006-L2090-W98490 x 60 x 2095.456.124.72.2823.64.541.8400.0
T60006-L2102-W947102 x 76 x 25108.170.030.32.4728.04.248.5515.0
T60006-L2160-W982160 x 130 x 25166.7124.130.62.8545.62.8581.1967.0
Part numberNominal dimensionAFelFemFeAL_10kHzACulCuRth
016-W37316 x 10 x 60.144.084.310.00.23.233.0
020-W37420 x 12.5 x 80.245.119.013.00.34.023.0
025-W37525 x 16 x 100.366.4417.016.00.64.816.0
030-W37630 x 20 x 150.577.8533.020.00.96.411.0
040-W43340 x 25 x 150.8610.264.023.01.57.27.5
050-W43450 x 40 x 200.7614.179.015.04.19.04.5
052-W82752 x 40 x 251.1414.5121.022.04.110.24.1
063-W43563 x 50 x 251.2417.8161.019.06.411.13.1
080-W43680 x 63 x 251.6222.5267.020.010.412.62.2
100-W342100 x 80 x 251.928.3395.019.016.414.61.6
130-W352130 x 100 x 252.8536.1757.022.026.317.21.1
160-W758160 x 110 x 254.7536.11480.031.032.519.90.8
Part numberNominal dimensionAFelFemFeµ_minµ_maxIrmsI_DC
L2022-W83622,3×17,3×6,20.126.225.678000060
L2025-W83525x20x6.20.1247.076.480000100
L2019-W97919x15x6,20.15.343.89800020
E3019-W59219x15x6,50.1045.344.325503450.02020.0
E3019-W80019,7×15,5×8,30.1485.56.416001900.04040.0
E3022-W63922.3x17x6.50.116.135.2216001900.06060.0
E3025-W58825x20x6.50.137.077.313001600.0100100.0
E3031-W77431x26x6.50.138.959.2213001600.0120120.0

Transductor cores made from VITROVAC® 6025 Z

Transductor chokes with cores made of VITROVAC® 6025 Z were the first industrial application of amorphous toroidal cores over 30 years ago. Thanks to its extremely low remagnetization losses and the pronounced rectangular hysteresis loop, the VITROVAC® 6025 Z alloy soon replaced the crystalline permalloy materials previously used. It quickly developed into a globally appreciated "classic".

Despite initial concerns about temperature and long-term stability, no problems have become known in almost three decades of industrial use, even with very high quantities.

Part numberNominal dimensionAFelFemFeSaturation flowACuRth
10-W53410 x 8 x 40.0322.830.73.20.08256
10-W66310.1 x 6.9 x 4.50.0582.671.25.80.05957
10-W72810.7 x 8.2 x 4.50.0452.971.04.50.08547
12-W46412.8 x 9.5 x 3.20.0423.51.14.20.12144
12-W54712 x 8 x 4.50.0723.141.77.00.08547
12-W53512.5 x 10 x 50.053.531.45.00.1442
14-W48114 x 8 x 4.50.1083.462.910.80.08244
15-W81315 x 10 x 4.50.093.932.79.00.12137
16-W53616 x 10 x 60.1444.084.514.40.13134
17-W53717.5 x 12.5 x 60.124.714.412.00.23130
19-W66619.2 x 12.7 x 60.1615.016.216.10.25328
19-W53919 x 15 x 50.085.343.38.00.3327
19-W54019 x 15 x 100.165.346.616.00.3324
20-W53820 x 12.5 x 80.245.19.424.00.20626
25-W54225 x 20 x 100.27.110.920.00.56818
25-W54125 x 16 x 100.366.4417.936.00.3619
30-W54330 x 20 x 100.47.8524.240.00.60216
040-W54440 x 25 x 150.910.270.890.00.9811
040-W54540 x 32 x 150.4811.341.848.01.6110

 

Transducer cores made of VITROPERM® 500 Z

In addition to the amorphous cores made of VITROVAC® 6025 Z, nanocrystalline transductor cores made of VITROPERM® 500 Z are increasingly being used. The nanocrystalline alloy offers two advantages in particular: lower alloying costs and significantly higher temperature stability against ageing effects.

However, the somewhat higher remagnetization losses and the lower rectangularity of the hysteresis loop must be taken into account in the design.

If you have any further questions, please do not hesitate to contact us.

 

Part numberNominal dimensionAFelFemFeSaturation flowACulCuRth
10-W75910 x 7 x 4.50.0542.671.111.90.0592.2757
11-W76011 x 8 x 4.50.0542.981.211.90.0852.5346
12-W76112 x 8 x 4.50.0723.141.715.80.0852.5346
12-W76212.5 x 10 x 4.50.0453.531.29.90.142.5942
12-W80312.8 x 9.5 x 3.20.0423.51.19.30.1212.2644
16-W76316 x 10 x 60.1444.084.331.70.1243.2534
16-W76416.5 x 12.5 x 60.0964.563.221.10.2313.330
17-W76517.5 x 12.5 x 60.124.714.226.40.2313.330
19-W76619 x 15.2 x 4.50.0685.372.715.00.3233.2827
20-W76720 x 15 x 80.165.56.535.20.2064.0826
20-W76820 x 12.5 x 80.245.119.052.80.2064.0826

 

Amorphous cut tape cores Strengths

  • High saturation induction
  • Low losses
  • Small construction volume
  • Flexible due to adjustable air gap
Applications

Solar Inverters

Welding equipment

Motor drives

Cut tape cores

Material data and core properties (losses)

Saturation inductionBsRT[T]1,56
Saturation inductionBs130 °C1,44
Curie temperatureTc[¡C]399
Crystallization temperature[¡C]508
Upper application temperature[¡C]ca.130
Magnetostrictonλs[ppm]27
Spec. electrical resistanceρeRT[_½m]1,3
Densityρ[g/cm3]7,18
Ummagnetization lossesPFe(0.1 T, 25 kHz)[W/kg]approx. 15
Ummagnetization lossesPFe(0.3 T, 50 kHz)[W/kg]approx. 300
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