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Transformers & Baluns
Manufacturers & Services

Here are some of the most prominent manufacturers of transformers and baluns for both RF applications and AC power transformation. When researching vendors, please consider using RF Cafe advertisers first.

Please contact RF Cafe advertisers first.





Transformer Design Books     Transformer Design Data
My policy is to only list companies that actually manufacture product or offer services related to the page title subject. Product distributors and sales representatives are not listed (they have their own page). This helps guarantee that each listing offers a unique product or service. NOTICE: I am no longer adding hyperlinks. Your best bet is to use a search engine to find company websites directly. If you are interested in advertising, please visit my Advertising information page.

Click here to visit the Pulsar Microwave websitePulsar Microwave Corp.
Clifton, NJ
Tel: (973) 779-6262
Pulsar Microwave is celebrating its 26th anniversary as a valued supplier of passive microwave components covering the frequency range of 10 kHz to 40 GHz with both narrow band and ultra-broadband products for the wireless communications markets.  ISO and RoHS.

We Specialize in Custom Requirements

Power Dividers/Combiners - 2-32 Way, Low /
 High Power to 40 GHz. SMT & Connectorized.
Directional Couplers - Low and High Power to
 18 GHz, 2500 watts. SMT and Connectorized.
Attenuators - Pin Diode, Voltage/Current
 Controlled and Digital Controlled to 16 GHz.
Switches - Absorpt./Reflect., SP1T-8T to 18 GHz.
90° & 180° Hybrids - 10% BW, 2:1 to 4:1,
 2:1 to 6:1, 5:1 to 125:1, 3 & 4 Port, to 20 GHz.
Phase Shifters - Analog (Narrow, Octave) and
 Switched Bit Digital, to 4 GHz.
Mixers - High IP3, DC/AC Coupled, to 7 GHz.
 High Frequency to 18 GHz. SMT & Connectorized.
I & Q Networks - Modulators, Demodulators,
 and Image Reject Mixers, to 16 GHz.
Bias Tees - 0.01 to 40 GHz. SMT & Connector.
Frequency Doublers - 0.2-6000 MHz. SMT &
     Connectorized.
DC Blocks - To 18 GHz, SMT & Connectorized.

Abracon | abracon.com
949-546-8000 | Rancho Santa Margarita, CA
Ceramic, SAW, dielectric filters, VCXO, TCXO, clock oscillators, crystal resonators, magnetics, transformers, chokes, inductors.

Advanced Components Industries, Inc | advancedcomponents.com
800-841-0994 | Torrance, CA
Space-limiting and height-limiting encapsulated transformers including hte Miniature Series, the Space Limiting SPK Series and the Height Limiting SPF Series.

API Delevan | delevan.com
716-652-3600 | East Aurora, NY
RF, power, military & aerospace inductors, EMI/RFI suppressors, transformers, common mode power chokes.

Bicron Electronics Co | bicronusa.com
800-624-2766 | Canaan, CT
DC Tubular, open frame, linear and rotary solenoids, toroidal power and isolation transformers up to 10,000VA, high performance transformers and components, current sensors and monitors.

C&D Technologies | cdtechno.com
800-543-8630 | Blue Bell, PA
Batteries, chargers, DC-DC converters, inductors, power supplies, power board panels, transformers.

Central Technologies | ctparts.com
800-684-5322 | Irvine, CA
Manufacturer of passive and discrete semiconductor components such as inductors, transformers, DC/DC converters, toroids, beads, resistors, varistors, antennas, etc. Offering over 350 products, free samples, engineering services, design kits, and customs capabilities. ISO9001:2000 certified.

Coilcraft | coilcraft.com
800-322-2645 | Cary, IL
RF, power inductors, EMI/RFI filter products, xDSL magnetics, transformers.

Datatronic Distribution Inc | datatronics.com
888-889-5391 | Romoland, CA
Switch mode power supply transformers & inductors, RF magnetics, common mode chokes, gate drive, current sense, pulse, wideband RF, telecommunications transformers, LAN filters.

Electro-Technik | electrotechnik.com
727-536-7861 | Largo, FL
Resistors, transformers and custom magnetic devices, microwave terminators and attenuators, and more.

Espey Mfg & Electronics Corp | v
518-245-4400 | Saratoga Springs, NY
Custom magnetic design, mW to MegaW, all forms including pulse, impedance matching, SMPS, power, rectifier, inductor, reactor, mag-amp, CT, PT, high voltage to 300 kV.

EXA E&C Inc | exaenc.com
+0082-2-3289-5164 | Seoul, Korea
TV circuit kits, high voltage transformers, back light inverters.

Flex-Core | flex-core.com
614-889-6152 | Columbus, OH
Current transformers, transducers, signal converters & conditioners, meters and monitors, selector switches, analog, digital meters, shunts and shunt-isolators.

Frontier USA | frontierusa.com
805-522-9998 | Simi Valley, CA
RF inductors, power chokes, common mode filters, multilayer chip inductors, SM ferrite beads.

Hammond Manufacturing | hammondmfg.com
716-651-0086 | Cheektowaga, NY
Electrical enclosures, racks, small enclosures, electronic transformers, outlet strips.

Marcus Transformer | marcustransformer.com
514-935-3543 | Montreal, Quebec
Lighting and distribution transformers that significantly reduce power consumption. Our patented WATT+PLUSTM technology, which incorporates only pure electrolytic copper coil windings, is recognized as the new standard of power for the electrical industry.

Mitchell Electronics | yesmec.com
914-699-3800 | Mt. Vernon, NY
Transformers, inductors, current sensors.

Pico Electronics | picoelectronics.com
800-431-1064 | Pelham, NY
Transformers, inductors, DC-DC converters, AC-DC power supplies, power factor corrected modules.

PowerVolt | powervolt.com
888-797-8658 | Addison, IL
Power transformers, linear regulated international, switch mode universal, StepperPower, unregulated open frame, unregulated enclosed case, AC/AC, AC/DC wall plug-in power supplies.

Prem Magnetics | premmag.com
815-385-2700 | McHenry, IL
Power & telephony transformers, inductors, and CRT magnetics.

Pulse Engineering | pulseeng.com
858-674-8100 | San Diego, CA
Power transformers, low profile plug-in, channel frame mount, surface mount inductors, filters, directional couplers, RF splitters/combiners.

Radius Power | radiuspower.com
714-289-0055 | Orange, CA
EMI/EMC filters, power supplies, transformers, inductors.

Renco Electronics | rencousa.com
321-637-1000 | Rockledge, FL
Bobbins, transformers, toroids, power chokes, inductors, surface mount.

RF Power Systems | rfpowersystems.com
623-376-7720 | Peoria, AZ
Impedance matching transformers, splitters and combiners for RF amplifiers. We fill orders of all sizes using the finest materials and workmanship. We can also fill special orders to customer specifications.

RTIE/Amecon™ Magnetics | amecon-magnetics.com
714-765-8200 | Anaheim, CA
Design and manufacture of medium to high power toroidal magnetic components including toroidal power transformers, inductors, magnetic amplifiers, instrument transformers, and AC/DC load sensors.

Signal Transformer (Bel Fuse) | signaltransformer.com
866-239-5777 | Jersey City, NJ
Standard and custom power transformers for worldwide applications.

Sprague Goodman | spraguegoodman.com
516-334-8700 | Westbury, NY
Trimmer capacitors, metalized, SMT Chip, leaded inductors, transformers, microwave tuning elements, varactor diodes, tuning tools.

Standex Electronics | standexelectronics.com
513-871-3777 | Cincinnati, OH
Cable, PCB, terminal blocks connectors, transformers, coils, antennas, current sense coils, hermetic & magnetic reed switches.

Superior Electric | superiorelectric.com
800-787-3532 | Bristol, CT
Motion & voltage control products, adjustable speed drives.

Tamura Corp | tamuracorp.com
800-472-6624 | Temecula, CA
DC-AC backlight inverters, DC-DC converters, EMI/RFI filters and coils, inductors, power supplies, wall plug-ins, telecom/datacom transformers.

Toroid Corporation of Maryland | toroid.com
888-286-7643 | Salisbury, MD
ISOBOX transformers/medical isolation, toroidal isolation, rectifier, balanced, current sensing, standard lamp, industrial control transformers, DC filter chokes.

TTE | tte.com
800-776-7614 | Los Angeles, CA
Bandpass, lowpass, highpass filters, diplexers, multiplexers, cases, balun, isolation & matching transformers.

West Coast Magnetics | wcmagnetics.com
800-628-1123 | Stockton, CA
Switch mode, 60 Hz, isolation, base drive, current sense transformers, RF, power inductors, common mode chokes.

XFMRS | xfmrs.com
317-834-1066 | Camby, IN
Transformers, inductors, inverters, EMI suppressors, wideband RF transformers up to 1 GHz.
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RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
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