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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.

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Transformer Design Books     Transformer Design Data
Vendor pages list only those companies that actually manufacture products or provide services indicated by the page title. Doing so avoids clutter and maximizes a visitor's likelihood of success in achieving his goal.   - Please click here if you are interested in advertising.

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

Bicron Electronics Co
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
800-543-8630 | Blue Bell, PA
Batteries, chargers, DC-DC converters, inductors, power supplies, power board panels, transformers.

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

Datatronic Distribution Inc
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
727-536-7861 | Largo, FL
Resistors, transformers and custom magnetic devices, microwave terminators and attenuators, and more.

Espey Mfg & Electronics Corp
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
+0082-2-3289-5164 | Seoul, Korea
TV circuit kits, high voltage transformers, back light inverters.

Flex-Core
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
805-522-9998 | Simi Valley, CA
RF inductors, power chokes, common mode filters, multilayer chip inductors, SM ferrite beads.

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

Marcus Transformer
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
914-699-3800 | Mt. Vernon, NY
Transformers, inductors, current sensors.

Panel Components Corp (now Interpower Corporation)
800-662-2290 | Oskaloosa, IA
Cords, cord sets, plugs, sockets, high power pin & sleeve devices, cable, strain reliefs, terminal blocks, inlets, modules, accessory power, switches & voltage selector, fuses, fuse holders, transformers, voltage changers, socket strips, testing & safety equipment.

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

PowerVolt
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
815-385-2700 | McHenry, IL
Power & telephony transformers, inductors, and CRT magnetics.

Pulse Engineering
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
714-289-0055 | Orange, CA
EMI/EMC filters, power supplies, transformers, inductors.

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

RF Power Systems
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
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)
866-239-5777 | Jersey City, NJ
Standard and custom power transformers for worldwide applications.

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

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

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

Tamura Corp
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
888-286-7643 | Salisbury, MD
ISOBOX transformers/medical isolation, toroidal isolation, rectifier, balanced, current sensing, standard lamp, industrial control transformers, DC filter chokes.

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

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

XFMRS
317-834-1066 | Camby, IN
Transformers, inductors, inverters, EMI suppressors, wideband RF transformers up to 1 GHz.

RF Cafe Software

RF Cascade Workbook
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.
RF system analysis including
frequency conversion & filters

Smith Chart™ for Excel
Smith Chart™ for Visio
RF & EE Symbols Word
RF Stencils for Visio

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