Nanocrystalline Common Mode Chokes

High Attenuation in Compact Designs

Common mode chokes (CMCs) based on nanocrystalline VITROPERM® offer highest attenuation in compact designs for a wide range of EMI requirements. The broad portfolio of standard types offers solutions for 1-phase and 3-phase applications as well as 4-fold CMCs.

Benefits:

  • Small size and high attenuation due to high permeability and saturation magnetization
  • Broad standard portfolio
  • Flat temperature characteristics
  • Solutions for high currents or high voltages available

Special Characteristics of Industrial Grade CMCs

  • UL1446-compliant designs based on VAC’s class B insulation system (File No. E329745)
  • Operating temperatures up to 130 °C
 

Designed for a wide range of applications:

  • Switched-mode power supplies (SMPS)
  • Solar inverters
  • Frequency converters
  • Welding equipment
  • Wind generators
  • Uninterruptible power supplies (UPS)

Special Characteristics of Automotive Grade CMCs

  • Ambient temperature: -40 °C < Ta < +115 °C
  • Max. short-term operating temperatures of Top = 160 °C
  • Rated insulation voltage: Ui= 525 Vrms (functional insulation, pollution degree 1)
  • Automotive qualified according to AEC-Q200
  • Design taking into account ‚Technical cleanliness‘ acc. to VDA 19 Part 2
  • Developed for DC/DC converters in hybrid and electric vehicles

General Characteristics

Application advantages

Technical background

Small size high µ, high BS
Suitable for high current
and/or high voltage
high µ, high BS, optimized core design
Single stage filter conpects possible extreme broadband attenuation behavior,
high permeability, low capacitance designs,
slow µ decline towards higher frequencies,
low Q factor in the 150 kHz range
High efficiency, low dissipation loss low number of windings necessary for high L, filter stage reduction
Suitable for high and low ambient temperatures and high operating temperatures high Curie temperature, material properties
(µ, BS, λS) virtually independent of temperature
Simplified filter design material properties (µ, BS, λS) virtually independent of temperature, constant impedance over a wide common mode current range due to linear magnetization curve

Superior EMC Filter and Common Mode Choke Design

Nanocrystalline cores are widely used in common mode choke (CMC) applications due to their unique combination of magnetic properties. By utilizing low-cost raw materials (Fe-based) and modern, large-scale production, VITROPERM is a very competitive solution for a wide range of applications.

Our CMCs feature high attenuation which is maintained across a wide frequency range offering extremely broadband attenuation. In many cases, this characteristic can allow a reduction of the number of filter stages in multistage EMC filter configurations to reduce complexity, cost and filter volume. Copper losses are also reduced, thus increasing the efficiency and lowering component temperature.

We have extensive practical and theoretical expertise in the design of CMCs and filter configuration using nanocrystalline cores and components. At higher frequencies, the winding configuration has a major effect on the parameters of winding capacitance and leakage inductance and is therefore carefully considered in our choke designs.

Design Advantages with VITROPERM

The superior material properties of nanocrystalline VITROPERM enable common mode chokes with high inductance/impedance, even with a small number of turns, resulting in reduced copper losses, low winding capacitance and excellent HF performance. Due to the high initial permeability, low winding capacitance and a low Q-factor, VITROPERM CMCs offer a broadband insertion loss curve ranging from 10 kHz up to several MHz and improved attenuation behavior at both low and high frequencies. Better attenuation properties and an extended operating temperature range allow a reduction of the component volume by a factor of up to 3 or more under similar conditions. The excellent attenuation of VITROPERM CMCs simplifies the filter design in a wide frequency range.

Special Characteristics of Industrial Grade CMCs

  • UL1446-compliant designs based on VAC’s class B insulation system (File No. E329745)
  • Operating temperatures up to 130 °C
 

Designed for a wide range of applications:

  • Switched-mode power supplies (SMPS)
  • Solar inverters
  • Frequency converters
  • Welding equipment
  • Wind generators
  • Uninterruptible power supplies (UPS)

Special Characteristics of Automotive Grade CMCs

  • Ambient temperature: -40 °C < Ta < +115 °C
  • Max. short-term operating temperatures of Top = 160 °C
  • Rated insulation voltage: Ui= 525 Vrms (functional insulation, pollution degree 1)
  • Automotive qualified according to AEC-Q200
  • Design taking into account ‚Technical cleanliness‘ acc. to VDA 19 Part 2
  • Developed for DC/DC converters in hybrid and electric vehicles

General Characteristics

Application advantages

Technical background

Small size high µ, high BS
Suitable for high current
and/or high voltage
high µ, high BS, optimized core design
Single stage filter conpects possible extreme broadband attenuation behavior,
high permeability, low capacitance designs,
slow µ decline towards higher frequencies,
low Q factor in the 150 kHz range
High efficiency, low dissipation loss low number of windings necessary for high L, filter stage reduction
Suitable for high and low ambient temperatures and high operating temperatures high Curie temperature, material properties
(µ, BS, λS) virtually independent of temperature
Simplified filter design material properties (µ, BS, λS) virtually independent of temperature, constant impedance over a wide common mode current range due to linear magnetization curve

Superior EMC Filter and Common Mode Choke Design

Nanocrystalline cores are widely used in common mode choke (CMC) applications due to their unique combination of magnetic properties. By utilizing low-cost raw materials (Fe-based) and modern, large-scale production, VITROPERM is a very competitive solution for a wide range of applications.

Our CMCs feature high attenuation which is maintained across a wide frequency range offering extremely broadband attenuation. In many cases, this characteristic can allow a reduction of the number of filter stages in multistage EMC filter configurations to reduce complexity, cost and filter volume. Copper losses are also reduced, thus increasing the efficiency and lowering component temperature.

We have extensive practical and theoretical expertise in the design of CMCs and filter configuration using nanocrystalline cores and components. At higher frequencies, the winding configuration has a major effect on the parameters of winding capacitance and leakage inductance and is therefore carefully considered in our choke designs.

Design Advantages with VITROPERM

The superior material properties of nanocrystalline VITROPERM enable common mode chokes with high inductance/impedance, even with a small number of turns, resulting in reduced copper losses, low winding capacitance and excellent HF performance. Due to the high initial permeability, low winding capacitance and a low Q-factor, VITROPERM CMCs offer a broadband insertion loss curve ranging from 10 kHz up to several MHz and improved attenuation behavior at both low and high frequencies. Better attenuation properties and an extended operating temperature range allow a reduction of the component volume by a factor of up to 3 or more under similar conditions. The excellent attenuation of VITROPERM CMCs simplifies the filter design in a wide frequency range.

Here you find futher detailed information about

 VITROPERM 550 HF        VACOCOIL        Solutions for wide bandgap semiconductors

 

 

List of Standard Common Mode Chokes

Nominal Current:  2 - 110  A
Windings:  2 - 4
Product Download IN
[A]
Number of WindingsUN
OVCat III
[V]
UN
OVCat II
[V]
Grade Design LN
10 kHz
[mH]
LN
100 kHz
[mH]
RCU
[mΩ]
|Z|
100 kHz
[Ω]
fR
[MHz]
Icm
10 kHz
[mA]
Length
[mm]
Height
[mm]
Width
[mm]
6131-X2044.52300600IndustryUpright10.82.532.52320112222512
6161-X50452300600IndustryUpright28.36.635.665000.410272917
6166-X20662300600IndustryUpright29.16.737.685000.2514353721
6166-X2088.52300600IndustryUpright16.43.719.142000.5173536.521
6123-X210102300600IndustryLow profile11.42.61232000.716352335
6166-X210102300600IndustryUpright11.42.612.731500.716353721
6126-X212122300600IndustryUpright11.42.6929500.722383522
6123-X21312.42300600IndustryLow profile11.42.68.829500.722352535
6122-X09513.526001000IndustryUpright16.93.67.640000.722413721
6102-X016132300600IndustryLow profile8.62.26.322501.128352235
6123-X616162300600IndustryLow profile12.93.15.73000326402440
6126-X2161626001000IndustryUpright5.31.32.812003.541.541.54023.5
6166-X033182300600IndustryUpright61.54.61600133383821
6166-X039182300600IndustryUpright2.90.73.98303.350363821
6123-X22020.52300600IndustryLow profile1.80.43.250011.5403523.535
6123-X221202300600IndustryLow profile6.61.62.914704.535432443
6128-X2202026001000IndustryUpright5.61.32.813003.640424627
6123-X226252300600IndustryLow profile4.211.99607.145432539.5
6123-X2272526001000IndustryLow profile122.83.529002.245523252
6128-X225252300600IndustryUpright4.211.99704.945424027
6128-X2262526001000IndustryUpright122.83.329001.5405248.528.5
6123-X2323026001000IndustryLow profile3.90.92.4920750522952
6128-X0313026001000IndustryUpright3.90.92.3900465515027
6128-X2303026001000IndustryUpright6.31.52.316502.755524727
6123-X2414026001000IndustryLow profile3.60.81.4870690523252
6123-X2484626001000IndustryLow profile2.50.616605.7100573351
6123-X2636326001000IndustryLow profile1.60.40.53909.3120563251
6123-X2858526001000IndustryLow profile1.60.50.65101.6200734073
6123-X306736001000IndustryLow profile31.87.424.686500.232740.532.540.5
6123-X3101036001000IndustryLow profile13.93.21435001.530513251
6123-X3081136001000IndustryLow profile10.62.58.526000.840423242
6123-X3121236001000IndustryLow profile5.73.711.826500.48150513251
6123-X3151636001000IndustryLow profile4.312.910001.455423242
6123-X3161636001000IndustryLow profile4.83.16.525000.65200593259
6123-X3171636001000IndustryLow profile9.42.25.924001.453551.53451.5
6123-X3202036001000IndustryLow profile10.62.44.126500.960593359
6123-X3212036001000IndustryLow profile4.81.12.812002.355523452
6123-X3252536001000IndustryLow profile21.32.2710002.8380603360
6123-X3262536001000IndustryLow profile4.91.12.1115026051.53251.5
6122-X326263600100N/AN/A10.62.44.12500N/AN/A646535
6122-X329293300600IndustryUpright3.60.81.48502.380645832
6123-X3323236001000IndustryLow profile1.20.81.46004.9480593359
6122-X3333236001000IndustryUpright1.20.81.46004.9480646032
6123-X1404036001000IndustryLow profile2.50.61.26004.7100523350
6123-X2404036001000IndustryLow profile1.50.81.726804380703770
6123-X3636336001000IndustryLow profile1.60.50.725001190704270
6123-X3707036001000IndustryLow profile0.80.50.864151.45900855385
6123-X31111036001000IndustryLow profile0.70.60.634301.4175013557135
6123-X4001246001000IndustryLow profile6.91.67.6615001.440513351
6123-X4012046001000IndustryLow profile3.60.82.758603.49051.53351.5
6123-X4023046001000IndustryLow profile3.20.71.57503.51006033.560
6123-X4034046001000IndustryLow profile1.40.30.823607160603360
6127-X01082N/AN/AAutomotiveUpright26.86.216.66630N/A16373525
6127-X01192N/AN/AAutomotiveUpright21.7513.65320N/A18373525
6127-X012102N/AN/AAutomotiveUpright17.1411.44180N/A20373525
6127-X013112N/AN/AAutomotiveUpright13.13.18.83180N/A23373525
6127-X014122N/AN/AAutomotiveUpright11.32.77.32730N/A24373525
6127-X007132N/AN/AAutomotiveUpright8.11.95.41930N/A29373525
6127-X00814.52N/AN/AAutomotiveUpright6.71.64.21590N/A32373525
6127-X009212N/AN/AAutomotiveUpright3.30.82.25780N/A45373525
6127-X01582N/AN/AAutomotiveUpright13.83.213.63310N/A18333325
6127-X01692N/AN/AAutomotiveUpright10.52.510.82530N/A20333325
6127-X0179.52N/AN/AAutomotiveUpright9.12.192180N/A22333325
6127-X018112N/AN/AAutomotiveUpright6.51.56.81540N/A25333325
6127-X019122N/AN/AAutomotiveUpright5.41.35.51280N/A28333325
6127-X020142N/AN/AAutomotiveUpright4.114.11030N/A31333325
4300-X00822N/A40IndustryLow profile204.7554500N/A1322.713.522.4
6131-X40222300600IndustryUpright12.12.8212030003.612222512
6161-X0162.62250250IndustryUpright247.7957500N/A8232514
6166-X035122250600IndustryUpright11.73133350125363821
6123-X216163300500IndustryLow profile4.42.98.222002204592859
6123-X225253300500IndustryLow profile3.525.317003255703870
6127-X02115.22N/AN/AAutomotiveUpright3.40.83.3820N/A35333325
6127-X02219.42N/AN/AAutomotiveUpright4.312.81030N/A40373525
6131-X0386.52300600IndustryUpright3.40.7915650620222512

Quick Selector for Common Mode Chokes

You did not find the right product for your application in the above list of standard products?
Then you may enter your application parameters here and you will receive further suggestions from our product range. If you would like a data sheet or further advice on a choke found in the search results, please contact us using the form at the bottom of this page. Thank you.

Quick Selector for Common Mode Chokes

Whitepaper for VITROPERM availableRegister to receive a Whitepaper on Mitigation of EMI in Applications with wide bandgap semiconductors

Wide bandgap semiconductors – like SiC, GaN and Ga2O3– offer specific advantages in power electronics due to their special physical properties and provide guidance on the optimization of the efficiency of passive LC-filters.

Downloads

EMC Products based on Nanocrystalline VITROPERM

Product Information

Download
Common Mode Suppression Chokes in Nanocrystalline VITROPERM for Automotive Applications

Product Information

VITROPERM 550 HF

Product Information

Download
VITROPERM 712 F

Product Information

Download
Common Mode Choke Sample Kit

Product Information

Download
VACOCOIL Common Mode Chokes

Product Information

Download
Core Sample Kit

Product Information

Download
Checklist for CMC EN50178

Product Information

Download
Checklist CMC IEC62109 & IEC61800

Product Information

Download

Related Products

Amorphous and Nanocrystalline Cores

Common mode chokes (CMCs) based on nanocrystalline VITROPERM offer highest attenuation in compact designs for a wide range of EMI requirements.

Amorphous and Nanocrystalline Cores

Nanocrystalline Material VITROPERM®

VITROPERM is an iron-based nanocrystalline material with an outstanding combination of soft-magnetic properties which make it the state-of-the-art material for a wide range of applications, e.g. common mode chokes (CMCs), current transformers (CTs), EMI filters and shielding material in wireless power transfer.

Nanocrystalline Material VITROPERM
Common mode chokes (CMCs) based on nanocrystalline VITROPERM

EMI filtering

We offer not only benchmark material for EMI solutions, but also cores and common mode chokes based on our nanocrystalline VITROPERM material.

EMI filtering

Contact UsThink Global - Act Local

We are looking forward to support you.

Find Your Local Support

Contactform