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Coil Winding Specialist


TOROIDAL POWER INDUCTORS and ROD CHOKES

"We will wind anything for you"

If you can conceptualize it, draw it, sketch it or describe it, we can wind it for you. Of course, if you have an engineering print of it, we can serve you even better.



Selection Guide to Toroidal Power Inductors, Rod Chokes and RF Chokes
Differential Mode Output Chokes - for filtering application where a DC bias current is present

  • CX SERIES - PARALLEL SERIES INDUCTOR
    Surface mount magnetics that can be used as single or coupled inductors or 1:1 transformers that provide isolation between two windings
    SD types are designed around high frequency low loss material.
    IP types are lower cost versions of SD offering high saturation flux density
    HF offers higher current ratings and higher saturation flux densities than SD or IP types.
    Secure 4 terminal mounting
    Inductor more versatile inductance combination by series or parallel connections.
    Inductance range from: 0 uH to 100 uH
    Current range to 1.7 Amps to 15 Amps
    Also available in MPP, Sendust/KoolMu cores. See below
    Custom designs available

  • SHF SERIES - SURFACE MOUNT TOROIDAL POWER INDUCTORS / CHOKES
    High Flux Cores used.

    Capable of handling very high DC bias current with minimal inductance roll off.

    Surface mount can directly be re-flowed onto PCB
    Normally our customer specify the specs ( size, inductance, current)
    and we built to meet the specs.
    Inductance range from: 0.4 uH to 305 uH
    Current range to 0.2 Amps to 7 Amps

    Custom designs available

  • HF SERIES - OPEN CONSTRUCTION TOROIDAL POWER INDUCTORS / CHOKES
    High Flux Cores used.
    Capable of handling very high DC bias current with minimal inductance roll off.

    Through hole mount with pre-tinned leads that can be directly soldered to PCB
    Normally our customer specify the specs ( size, inductance, current)
    and we built to meet the specs.
    Inductance range from: 10 uH to 100 uH
    Current range to 1.7 Amps to 15 Amps
    Also available in MPP, Sendust/KoolMu cores. See below
    Custom designs available

  • MHF SERIES - OPEN CONSTRUCTION TOROIDAL POWER INDUCTORS / CHOKES
    High Flux Cores used.
    Capable of handling very high DC bias current with minimal inductance roll off.

    Bobbin Through hole mount with pre-tinned leads that can be directly soldered to PCB
    Normally our customer specify the specs ( size, inductance, current)
    and we built to meet the specs.
    Inductance range from: 10 uH to 100 uH
    Current range to 1.7 Amps to 15 Amps
    Also available in MPP, Sendust/KoolMu cores. See below
    Custom designs available


  • MPP SERIES - CUSTOM DESIGNED, OPEN CONSTRUCTION TOROIDAL POWER INDUCTORS / CHOKES
    MPP cores used for low loss and high temperature application
    Capable of handling very high DC bias current with minimal inductance roll off.

    Vertical or Horizontal through hole mount with pre-tinned leads that can be directly soldered to PCB
    C
    ustomer specific specifications ( size, inductance, current)
    and we built to meet these specs.
    Inductance range from: 10 nH to 200 uH
    Current range to 10 Amps to 200 Amps
    Custom designs available

  • HW SERIES - HELICAL WINDING TECHNOLOGY OUTPUT INDUCTORS FOR INDUSTRIAL APPLICATION
    Helical Winding in semi quasi planar structure for lower skin effect loss
    Micrometal's Mix 40, 52 and 8/90 Gapped and UnGapped Iron Powder Cores
    Capable of handling very high DC bias current

    Various Mounting configuration with pre-tinned leads for direct connection

    Inductance range from: 10 nH to 200 uH
    Current range to 10 Amps to 200 Amps
    Custom designs available

  • J20 SERIES - HIGH CURRENT TOROIDAL POWER INDUCTORS
    Designed using high saturation and Powder Iron Cores with distributed air-gap
    Excellent electromagnetic shielding due to toroidal design
    Designed for commercial, industrial and military applications
    Low core loss and low radiation

    High operating frequencies
    High current and low core saturation
    Horizontal and Vertical mount

    Operating temperature -55 to +105 deg C
    Inductance values from 0.3 uH to 50 uH
    Current rating from 3.2 Amps to 28.5 Amps
    Custom designs are available to meet your specific needs
    Designed for applications such as High current/Low voltage converters, High-speed computers, Video game machines, Output chokes, EMI filters

    Custom designs available

  • SQM SERIES - 10mm HIGH SQUARE MPP POWER INDUCTORS / CHOKES
    Core used are specially designed 10mm square shaped MPP core
    Can be arranged in series and parallel as a flat pack
    Surface Mount or Through hole mount with pre-tinned leads
    Inductance range from: 10 nH to 200 uH
    Current range to 50 Amps

  • TC SERIES - TOROIDAL IRON POWDER POWER INDUCTORS
    Over 95 different types of standard off-the-shelf items.
    Designed with super low cost Iron Powder cores
    Leads directly mount to PCB, so min. wire used is AWG #22.
    Normally our customer specify the specs ( size, inductance, current)
    and we built to meet the specs.
    Inductance range from: 5 uH to 1.8 mH
    Current range to 10 Amps
    Also available in MPP, High Flux, Sendust/KoolMu cores
    Custom designs available to handle inductance up to 100 mH
    with current to 100 Amps

 

  • CWS-112X SERIES - OPEN TOROIDAL CHOKES FOR SPEED CONTROLS AND DIMMERS
    100 watts to 500 watts power handling at 110vac or 240 vac.
    Designed for triac control circuits used in speed control, lighting dimmer and simialr application
    Through Hole Leads directly mount to PCB
    Custom inductance and power levels available
    Inductance range from: 2.4 mH to 4.0 mH
    Also available in MPP, High Flux, Sendust/KoolMu cores

 

  • OPC SERIES - TOROIDAL WITH HEADER POWER INDUCTORS
    Core used are MPP, High Flux, Sendust/KoolMu and Iron Powder
    Mounted on a base/header for direct mount to PCB.
    Normally our customer specify the specs ( size, inductance, current)
    and we built to meet the specs.
    Inductance range from: 7uH to 1.4 mH
    Current range to 11 Amps
    Custom designs available to handle inductance up to 100 mH
    with current to 50 Amps

 


  • Axial and Radial Power Inductors
    Leaded Power Chokes and Inductors these are very low cost series Inductance range from: 1uH to 1000 mH
    Current range to 100 Amps for custom built

 

 
  • Surface mount Power Inductors
    These are very low cost shielded surface mount inductors. The rated current for these high current inductors is from 0.12 Amps to 35 Amps. The height of these low profile inductors ranges from 1.25 mm (0.05") to 8mm. These inductors are wound on ferrite cores.

How to choose Iron Powder, Sendust, Koolmu, High Flux and MPP Cores as output inductor and chokes

What is a powdered cores ? Its differences with gapped ferrites
History of powdered cores and its uses as output chokes
Differences in performance, composition, saturation flux, permeabilities and cost between iron powder, sendusts, koolmu, high flux and MPP cores

 
 

 


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Need Power Magnetics? Then look no more! CWS delivers the finest in surface mount inductors, standard inductors, Power Transformers, Common Mode Chokes, Ceramic Chip Inductors and Wire Wound Chip Inductors. CWS can supply all of your filtering needs as well, including EMI Filters, RFI Filters, LC Filter Inductors, and Common Mode Filters. From Transmission Line Transformers to power transformers, CWS is the source to call!
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