Endicott Coil Company, Inc. - Since 1954Endicott Coil is an ISO 9001:2015Certified Manufacturer Specializing inCustom Wound Electric Coils, Encapsulated Coils and Custom Transformers

Custom Designed Transformers and Inductor Manufacturing

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Custom Designed Transformers and Inductor Manufacturing
Custom Designed Transformers and Inductor Manufacturing

Our engineering staff at Endicott Coil Company, Inc. provides custom winding of transformers or inductors to meet our customers' specific needs. We produce all types of transformers including, but not limited to: power, current, flyback, and autotransformers. Endicott Coil also manufactures custom inductors including common mode, filter, self-supporting, wind mill, generator, and toroidal inductors.

Transformers can be produced with windings using wire from 10 AWG to 48 AWG and EI-187 to EI-250 lamination cores. Finished transformers can be up to 9" x 6" x 6" and weigh up to 30 lbs. Transformers can be manufactured with power ratings up to 5,000 VA. We manufacture our transformers on both manual and CNC winding machines as required by the design. Our engineers will take customer's specifications for direct current resistance, input/output voltage, inductance, impedance, and dielectric strength and design the transformer based on these parameters. We use dimensional inspection, HiPot testing, surge testing, exciting current testing, input & output voltage testing, and turn count to ensure that all applicable UL, CSA, and VDE quality standards are met.

For more details about our transformers, please see the table below or contact us directly.

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Highlights of this Custom Winding, Insulating & Laminating Project

Product Description   Transformer Types:
  • Power
  • Pulse
  • Amplifier Step Up
  • Step Down
  • Audio
  • Wideband
  • Rectifier
  • 3 Phase
  • Current
  • Voltage Ratio
  • Auto
  • Flyback
  • Push-Pull
  • Half/Full Bridge
  • Forward Connector
  • Buck
  • Buck-Boost
  • Boost

Inductor Types:
  • Common Mode
  • Filter
  • Self-Supporting
  • Wind Mill
  • Generator
  • Toroidal
Capabilities Applied/Processes  
  • Winding
  • Insulating
  • Laminating
  • Dipping
  • Impregnation
  • Termination
  • Secondary Assembly
Equipment Used to Manufacture Part   Manual & CNC Winding Machines
Electrical Specifications  
  • Direct Current Resistance (DCR)
  • Input/Output Voltage
  • Exciting Current
  • Inductance
  • Impedance
  • Dielectric Strength
  • Regulation
Overall Part Dimensions  
  • Wire Size: 10 AWG - 48 AWG
  • Weight: less than 30lbs.
  • EI-187 to EI-250 Laminations
  • Approx. size up to 9" x 6" x 6"
Material Used  
  • Copper Magnet Wire
  • Electrical Insulating Tape
  • Lead Wire
  • Laminations
  • Keepers
  • Brackets
  • Hardware
  • Terminals
  • Varnish
In process testing/inspection performed  
  • Dimensional Inspection
  • Hipot Testing
  • Surge Testing
  • Exciting Current Test
  • Input & Output Voltage Testing
  • Turn Count
  • Shortened Turns
Industry for Use   Transformer Industry
Standards Met  
  • Customer Specifications
  • 2D CAD Drawing
  • VDE
Product Name   Transformers

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