EMS Technologies
Electronics & assembly

Magnetics & Coil Windings

Custom magnetic devices for radio-frequency, telecom, power and audio applications.

Illustrative panorama of copper-wound inductors, toroidal coils and transformers
Electronics & assemblyAI-generated illustration

The right component for your circuit.

EMS produces custom magnetic devices, including power inductors, current transformers, sensors, chokes and air coils.

Supported by dedicated program management
Illustrative copper coils and inductors

Inductors & coils

Review power inductors, chokes and custom coil requirements.

EMS magnetic component examples

Transformer families

Discuss telecom, current-sense, power and audio applications.

Illustrative populated circuit board

Part of your circuit

Connect electrical targets with the physical envelope and operating environment.

From inductors to transformers.

Inductors and coils

  • SMD power inductors
  • Inductors
  • Flat helix winding coils
  • Air coils and chokes

Transformers

  • Telecommunication and SMD transformers
  • Current-sense transformers
  • Power and toroidal line transformers
  • Line-matching audio transformers
  • Gate-drive and inverter transformers

Wireless power

  • TX and RX modules for wireless power chargers

Designed around the application.

EMS supports radio-frequency, telecom, power and audio magnetics. Describe the electrical requirements, physical envelope and operating environment.

A clearer brief.
A better starting point.

A few details help frame the conversation. Start with what you know; bring the open questions, too.

Talk through your requirements
What helps start a review?

Share the schematic or drawing, electrical targets, dimensions and expected quantities.

What testing information should I include?

Identify the safety, performance and documentation requirements for your application.

Bring your circuit requirements.

Discuss the magnetic component and its role in your product.

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