Badger Magnetics - Milwaukee, WI
Custom Manufacturer
Designer & manufacturer of toroidal transformers with mounting configurations. Materials include ferrite, iron, silicon steel, nickel steel, metal powders, Kool Mu®, nanocrystalline & Metglas®. Toroidal transformers are available in 0.5 in. to 6 in. height with 0.5 in. to 15 in. dia. & #8 to #42 wires. Toroidal transformers are used as chokes, inductors & magnetic amplifier & inverter/converter components. Applications include aerospace, defense, industrial, medical, power supplies & lighting. RoHS compliant. CSA approved. UL listed. CE & IEEE certified. Meets Military T-27 Spec. Meets TUV standards.
transformers.badgermagnetics.com/item/all-c...

Toroidal Transformers Capabilities
	Custom Toroidal Components

SNC Manufacturing Co., Inc. - Oshkosh, WI
Manufacturer, Custom Manufacturer
Custom manufacturer of toroidal transformers including toroidal power & current transformers. Toroidal transformers are suitable for industrial applications. ISO 9002 compliant, with JIT delivery & warranty services available.
Brand Names: SNC
www.sncmfg.com/transformers/products

Torelco - Phillipsburg, NJ
Manufacturer, Custom Manufacturer
Manufacturer of transformers in various styles including toroids, bobbins, EI, UI, EE, L, E Cores, EC cores, pot cores, RM cores, EP cores, C cores, custom gapped. Materials utilized include tape wound, ferrite, MPP, amorphous, sendust, powdered iron, nickel alloys & silicon steel.
www.torelco.com/products.html

Mech-Tronics - Mount Holly, NJ
Manufacturer, Custom Manufacturer
Custom mfrs. of all types of bobbin & toroidal magnetic coil windings to customer print or specs. PC board mount specialists in medium/high frequency. Miniature to medium size transformers including encapsulated, ferrite, high voltage, pot-core & toroidal.
www.mech-tronics.net/toroid.htm

Triad Magnetics - Corona, CA
Manufacturer, Custom Manufacturer
ISO 9001: 2008 & ISO 14001:2004 certified worldwide custom manufacturer of power transformers with toroidal & laminated construction. Also available with surface mount, chassis mount & PCB mounts. Other capabilities include step-up, step-down, autotransformers, general purpose, control, distribution & isolation transformers. Primary specifications, secondary specifications, transformer construction, transformer type, mounting configuration & operating temperature can be specified. Other capabilities include inductors, chokes, coils & power supplies. Also available are gate drive, current sense, & audio transformers. Materials are VDE, IEC, & CSA compliant. RoHS & China RoHS compliant. Also meets UL & TuV to IEC 60950-1 standards.
www.triadmagnetics.com/home.htm

Custom Magnetics, Inc. - North Manchester, IN
Distributor, Manufacturer, Custom Manufacturer
Custom manufacturer of toroidal transformers including low-profile toroidal transformers. Toroidal transformer is circular tape wound core transformer & is made from grain-oriented silicon steel or nickel. Toroidal transformers are fabricated in power ratings from 1 W to 1500 W, frequencies from 25 Hz. to 400 Hz., dia. up to 8 in. & heights up to 4 in. Toroidal transformers are used in applications CRT displays, test equipment, high-end amplifiers, audio/video equipment, telecommunications/computer rack systems, power supplies, isolation, autoformers & inductors.
www.custommag.com/products/toroidal.shtml

Allstar Magnetics, Inc. - Vancouver, WA
Distributor, Manufacturer, Custom Manufacturer, Service Company
Distributor of magnetic and inductive components, hard/soft magnetic materials, magnets, magnet assemblies, ferrites, cores, EMI suppression components and hardware. Custom manufacturer of assemblies for transformers, inductors, chokes and coils. Magnets such as alnico, bonded, ceramic, neodymium, samarium cobalt, guitar and cow magnets are available. Hardware includes adjusters, bobbins, clips, containers, plates, springs, toroid mounts and washers. Cores such as ferrite, magnetic, powder and powdered iron cores are available. Services include coating, gapping, grinding, kitting, lapping, part marking, stocking, testing, shipping and turnkey assembly. Markets served include OEMs and transformer mfrs. RoHS and DoD compliant products are also available. Just-in-time delivery available.

Schott Magnetics - San Diego, CA
Manufacturer, Custom Manufacturer
ISO 9001:2000 certified manufacturer of standard & custom toroidal transformers. Transformers also include HWT power transformers, pot core transformers, flyback transformers, toroidal transformers, pulse transformers & surface mount transformers. Design services for transformers, coils, chokes & inductors available. Applications include power supply, avionics, 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...

Beverly Mfg., Inc. - Riverside, NJ
Custom Manufacturer
Designer & manufacturer of custom transformers. Types of transformers available include audio, core & coil, current, electric, electronic, encapsulated, ferrite, flyback, high frequency, high & low voltage, instrument, lighting & power, medical equipment, miniature, PCB, power, pulse, RF, split bobbin, step-down & step-up, subminiature, surface mount & toroidal. Products available in all types of bobbin wound transformers, as well as machine & hand wound toroids ranging from sizes 1/8 in. to 5 inches. Supplying products to customers that utilize programs that fulfill auto replenishment inventory including BEM & POURS, or any other EDI systems that are available.
www.beverlymfginc.com/Products.html

V-TECH Manufacturing Solutions LLC - Fishers, IN
Custom Manufacturer
Custom manufacturer of toroidal transformers including toroidal power transformers. Toroidal power transformers are fabricated in single-phase & 3-phase options. Capabilities include designing, rapid prototyping, project management & customer relationship management. Toroidal transformers are designed for use in aerospace, audio, automotive, industrial processes/equipment, lighting, medical/clinical instrumentation, military, defense, power products, semiconductor & telecommunications industry applications. Toroidal transformers are FDA approved, RoHS compliant & CSA®, CUL®, ITAR, IPC, TUV & UL® standards certified.
www.v-techmfgsolutions.com

GlobTek, Inc. - Northvale, NJ
Manufacturer, Custom Manufacturer
Woman-owned manufacturer of toroidal coil transformers. Types of transformers include EMI filters, power chokes, converters, pulse transformers, & line filters. Applications include computer, switching power supplies, EMI/FCC filters, noise filters, & communication transformers. Temperature ranges between minus 20 degrees to plus 60 degrees C. Insulation resistance is more than 100M. DC current ratings range from 1 to 20 Amps. ISO 9001:2000 registered.
www.globtek.com/html/transf5.html

Magnetic Component Engineering, Inc. - Torrance, CA
Manufacturer, Custom Manufacturer, Service Company
ISO 9001:2008 & AS 9100 Rev C certified manufacturer of standard & custom magnets, magnetic components & magnet assemblies including core & coil transformers, pot core & E-core transformers & toroidal transformers. Materials used for precision magnet assemblies & components include samarium cobalt, neodymium iron boron, rare earth magnet materials, alnico & ceramics. Standard parts include blocks, discs, rings & round bars in different dimensional specifications. Services include assembly, testing magnetic materials BH curves, coating, plating, engineering design, magnetizing, marking, identification, stabilization, calibration, testing & certification. Markets served include aerospace/defense, medical, industrial, research labs, semi-conductor & telecommunications.
www.mceproducts.com/

1-Source Electronic Components - Yaphank, NY
Distributor, Custom Manufacturer, Service Company
Stocking distributor of miniature toroidal transformers. Various capabilities include excess inventory consignment, electronic engineering, product designing, prototyping, contract manufacturing and software application development. RoHS compliant.
Brand Names: Acme, Hammond, Triad Magnetics
www.1sourcecomponents.com/store/index.php/t...

Midwest Current Transformer, Div. of Anderson Engineering of New Prague, Inc. - New Prague, MN
Distributor, Manufacturer, Custom Manufacturer
Custom manufacturer of transformers including toroidal transformers, electric transformers & current transformers. Standard insulation of transformers is 600 V with high voltage insulation optional. Current transformers manufactured with current ratios from 4000:5 to 5:5, VA output capacity ranges from 2VA to15VA. Accuracy ranges from 0.10 to 9.99. Core made with grain oriented steel. Standard leads are 24 ins. in length. Options include screw terminals, extra taps, mounting brackets, special lead length & fungus treatment to meet military specifications. UL recognized components.
www.midwestcurrent.com

MPS Industries, Inc. - Gardena, CA
Manufacturer, Custom Manufacturer
ISO 9001:2008 certified custom manufacturer of toroidal power transformers. Specifications of toroidal power transformers include operating temperature up to 70 degrees C, 4.8 percent to 12.0 percent voltage regulation, efficiency up to 94 percent, 80 mm D x 35 mm H to 131 mm D x 80 mm H dimension, 0.87 kg to 4.92 kg weight & 50 VA to 450 VA power rating. CE certified. UL listed. RoHS compliant. Products also include planar transformers, video and RF transformers, balun transformers, broadband transformers and power transformers.
www.mpsind.com/MPS-pages/MPS-product-pages/...

Lenco Electronics, Inc. - McHenry, IL
Manufacturer, Custom Manufacturer
Custom manufacturer of toroidal & welding transformers. Transformers such as converter transformers, current transformers, filament transformers, R-core transformers, inverter transformers, low profile transformers, 400 Hz transformers, audio transformers, switch mode transformers, plate transformers, medical (UL 2601/IEC 601) transformers, hi-temperature (Class H per UL 1446) & pot core transformers are available. Products such as autotransformers, single phase transformers, three phase autotransformers, three phase isolation transformers, small PC transformers & AC/DC constant voltage transformers are also available.
www.lenco-elect.com/custom_transformers.htm

Electronetics, LLC - Everett, WA
Manufacturer, Custom Manufacturer
Custom manufacturer of transformers such as pot core & E-core ferrite transformers, gate drive transformers, three-phase transformers & toroidal transformers. Products also include electronic transformers, auto transformers, high frequency magnetic transformers, voltage & current sensing transformers, constant voltage transformers, surface mount transformers, & planar magnetic transformers. Available in a wide range of operating frequencies, 1 or 3 phase operations, & core & coil materials. Capabilities include automated winding, toroid winding, vacuum impregnation, laminating, lean manufacturing, testing, advanced CAE, & prototype to high volume production. Quality assurance processing includes parametric acceptance testing, Hipot testing & visual inspection services. Lean manufacturing capable. CSA, UL & TUV compliant.
electronetics.thomasnet-navigator.com/categ...

Toroidal Transformers Capabilities
	Custom Avionics, Aerospace & Medical Power Transformers Custom SMT/SMD Transformers & Inductors

Johnson Electric Coil Co. - Antigo, WI
Manufacturer, Custom Manufacturer
Designer & manufacturer of dry-type single & three phase toroidal transformers. Manufactured to customer requirements. Autotransformers & isolation transformers include ferro-resonant, constant voltage, high reactance, special voltage requirement, taps where needed, winding configurations, terminations to suit individual installation, unusual sizes & shapes, available from 100kVA to 250kVA. UL, CSA, CE & RoHS compliant to all domestic & international standards.
www.johnsoncoil.com/custom-products/three-p...

Magnaworks Technology, Inc. - Bohemia, NY
Manufacturer, Custom Manufacturer
Permanent magnets, rare earth magnets (neodymium & samarium cobalt), ISO 9000 quality standards compliant, JIT delivery. Ceramic, flexible (strips & sheeting), alnico (cast & sintered), ferrites (anisotropic & isotropic), injection & compression molded, rare earths (SmCo/NdFeB), magnetic assemblies (cups, channels, horseshoes, holders), all shapes, sizes, grades, magnetization patterns & custom fabrication.
www.magnaworkstechnology.com

Able Coil & Electronics Co., Inc. - Bolton, CT
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of standard & custom transformers including split bobbin transformers, toroidal transformers, special transformers & ferroresonant transformers. Transformers are available in different sizes & capacities. Services include designing, prototyping & product-cycle testing. Industries served include commercial, medical, aerospace, communications, automotive & military.
www.ablecoil.com/index.html

Vishay - Malvern, PA
Manufacturer
Manufacturer of inductors & transformers for RF signal filtering to dc-to-dc power conversion. Products include miniature chip inductors and multi-terminal devices. Capabilities include implantable medical devices, instrumentation equipment, avionics & aerospace controls. Additional parts include crystals, oscillators, & specialized coaxial & edgeboard connectors. IHLP inductors feature high frequency operation, high current ratings, & small sizes.
www.vishay.com/inductors/index.html

EMRA Controls, Inc. - Auburn, WA
Manufacturers' Rep, Service Company
Mfr's rep. specializing in fiber optic cables, connectors, flowmeters, HVAC equipment, sensors, switches, thermocouples, timers and transducers.
www.emracontrols.com/

Magnetic Specialties, Inc. - Telford, PA
Manufacturer, Custom Manufacturer
Custom manufacturer of toroidal, split core & cast coil transformers. Types also include instrument, potential, furnace, specialty, high frequency, ferroresonant, rectifier, filament, isolation, plate, constant voltage regulator & output transformers. Transformers with power up to 500 kVA are also available.
www.magspecinc.com/transformers.html

Pearson Electronics, Inc. - Palo Alto, CA
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of high voltage pulse transformers including toroidal transformers available in various sizes & configurations. Specifications of toroidal transformers include 100 kV to 500 kV pulse output voltage & 0.25 microseconds to 50 microseconds pulse length. Features include solid insulation, measurements of complex current wave shapes from microampere to kilo ampere & wideband frequency response.
www.pearsonelectronics.com/products/high-vo...

Power Magne-Tech Corp. - Perth Amboy, NJ
Custom Manufacturer
Custom manufacturer of encapsulated and auto toroidal transformers. Capabilities include designing and testing. Utilities, medical, dental, test equipment, audio, video, communications, military and aerospace industries served. Made in USA.
powermagnetech.com/