Triad Magnetics - Corona, CA
Manufacturer, Custom Manufacturer
ISO 9001: 2008 & ISO 14001:2004 certified worldwide custom manufacturer of high current common mode chokes & coils in toroidal & wirewound or foil wound technologies. Also available in solenoidal, bobbin core & laminated technologies. Mounting style, core material, inductance type & applications can be specified. Diameter, thickness, permeability & types can be specified for toroidal devices. Bobbin cores are available with & without leads in axial & radial form. Can operate in the radio frequency spectrum. Core materials include air, iron, ferrite, & MPP. Choke coils are IEC, UL, & CSA compliant.
www.triadmagnetics.com/home.htm

VAC Sales, USA, LLC - Elizabethtown, KY
Distributor, Manufacturer, Custom Manufacturer
ISO 9001:2008 certified custom manufacturer of high current toroidal chokes. Types of chokes include common mode, DC, output, magnetic amplifier, PFC, line & filter chokes. Applications include automotive, drive technology, energy meter & conversion, EMC, telecommunication & transportation.
www.vacuumschmelze.com/index.php?id=285&L=2

Power Magne-Tech Corp. - Perth Amboy, NJ
Custom Manufacturer
Custom manufacturer of high current toroidal chokes. Capabilities include designing and testing. Utilities, medical, dental, test equipment, audio, video, communications, military and aerospace industries served.
powermagnetech.com/

REO-USA, Inc. - Indianapolis, IN
Manufacturer
Manufacturer of high current toroidal and high frequency inductors and chokes. Suitable for industrial and transportation converter, electro medical, electrical test, power electronic and electrical vehicle applications. Some items UL listed.
www.reo-usa.com/products-select.php?u=Induc...

Schott Magnetics - San Diego, CA
Manufacturer, Custom Manufacturer
ISO 9001:2000 certified manufacturer of standard & custom high current toroidal chokes. PFC chokes, common mode chokes, high current chokes, high current differential chokes, iron powder line filter chokes & surface mount chokes are also available. Design services for transformers, coils, chokes & inductors available. Applications include power supply, military, medical, test & measurement, industrial, automotive & commercial. UL®, CSA®, IEC, FCC & EN60950 certified. Products are RoHS compliant & lead (Pb) free.
www.schottcorp.com/products_area/products.a...

Communication Coil, Inc. - Schiller Park, IL
Manufacturer, Custom Manufacturer
Manufacturer of custom high current toroidal chokes, inductors, coils; pi-wound, airwound, shielded, variable, non-magnetic. LC filters, baluns, RF & power transformers for medical, military, airborne, marine, instrumentation, industrial & wireless communications.
www.communicationcoil.com/coils.html

Amecon/RTI Electronics, Inc. - Anaheim, CA
Manufacturer
Manufacturer of toroidal chokes including precision wound heavy duty toroidal inductors with capacities from 5 A - 100 A, & 50 Hz - 60 Hz. Chokes include inductors for DC application, EMI/RFI filter chokes, common mode chokes, & inductors from 0 kHz. - 400 kHz.

ISL Products International, Ltd - Syosset, NY
Distributor, Custom Manufacturer
Manufacturer of precision-engineered electronic & electromechanical components & assemblies.

Precision Electronics, Inc. - Copiague, NY
Manufacturer, Custom Manufacturer
Custom manufacturer of filter chokes including inductor, high current toroidal, power line, production, & military specification chokes. Filter chokes include frequency up to 250 mHz, mW to 50kW 3 phase & thermal shook burn-in. Designs are UL & CSA approved. Meets MIL-T-27, MIL-STD-2000, & MIL-I-45208 specifications.

Right Hand Manufacturing, Inc. - Bonita, CA
Custom Manufacturer, Service Company
ISO 9001:2008 certified custom manufacturer of chokes including toroidal & high current toroidal chokes. Products such as encapsulated magnetics, inductors, EMI coils & transformers can also be fabricated. Services include sorting, reworking, injection molding, components recovery, cable & wire processing, packaging & labeling, manufacturing shelter services & cleanroom services. UL® certified & FDA registered. RoHS compliant.

Keytronics, Inc. - Lake Ronkonkoma, NY
Manufacturer, Custom Manufacturer
High current toroidal chokes. Manufacturer of transformers, magnetic drives, military specification transformers, ferrite, pot core & e-core transformers, ferroresonant & isolation transformers, laminated & milspec transformers, power & pulse transformers, saturable reactor & switchmode transformers, core & coil transformers, current & toroidal transformers, single & three-phase transformers, power converters, battery chargers, power supplies & magnetic components.

Metglas - Conway, SC
Distributor, Manufacturer, Custom Manufacturer
ISO 9001:2000 certified manufacturer of amorphous metal ribbon & components including high current toroidal chokes. Specifications include saturation flux density of 0.51 tesla, greater than 72,000 micro permeability, electrical resistivity of 142 microohms cm, ribbon thickness of 18 micrometer, density of 7.59 g per cu. cm, 12.7 ppm per degree C thermal expansion, 225 degrees C curie temperature, tensile strength from 1k to 1.7k megapascals & elastic modulus from 100 to 110 gigapascals. Features include flat loop toroidal, high permeability, high saturation flux density, noise suppression, low energy loss & high attenuation. Applications include EMI common mode filtering, telecommunications & data communications interface transformers, pulse transformer & ground fault protection devices. RoHS compliant.
Brand Names: Metglas

Agile Magnetics - Concord, NH
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of inductors including toroidal common mode chokes with vertical & horizontal mount capabilities for high current, noise reduction, switching power supply, high density placement & limited space applications. Toroidal common mode chokes are available with single layer windings for minimal creepage & 3 mm clearances. Materials used to make chokes include cobalt alloy, ferrite, metallic glass, nickel alloys, powered iron & silicon iron. Common mode chokes are suitable for use in consumer electronic, desktop computer, industrial electronic & office equipment applications. Chokes are also suitable for through hole & surface mount & encapsulation applications. ISO 9001:2000 & RoHS compliant.

Bridgeport Magnetics Group Inc. - Shelton, CT
Manufacturer, Custom Manufacturer
Stock and Custom designs available. Certifications to UL506, UL60601.1 and equivalent CSA/EN/IEC safety standards with CE marking.