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Voltage step-up coils

- Large inductance values; small and low profile
- Magnetic structure and narrow wire diameter using high speed winding technology to achieve 50mH
- High reliability (drop impact resistance)


1. High inductance and space saving. 

  • Small and low profile (1.2mm max./1.4mm max.).
  • Short terminals (4.0mm max.~ 5.5mm max.).

2. High inductance ≤50mH. 

  • Optimized magnetic structure and winding technology.

3. High reliability with fully automated processes (high shock resistance).

  • Thin insert-molded terminal structure is robust against the wire-cut problem.


inductor consumer voltage-step-up-coil structure
  1. Ferrite core
  2. User terminal
  3. Maker terminal
  4. Coil
  5. Terminal board
  6. Ring

Element Technology

1. Winding and junction technology

  • High speed winding technology of extra-thin wire
  • High speed solder junction technology by YAG

2. Continuous hoop production by high speed winding machine

3. Wide range of inductance values available due to the combination of extra-thin wire coil forming and magnetic ring construction


Voltage step-up for piezo buzzer

  • Electric thermometer
  • Wristwatch


  • Hearing aid compatibility (HAC) for mobile phones to empower people with hearing difficulties

Voltage step-up for DC/DC circuitry of EL panels

  • Mobile phones
  • Digital still camera

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Design support for inductors

Simulation data libraries

Equivalent circuit models and S-parameter data can be downloaded for each individual item.

LC simulator

Simulates attenuation requirements when configuring an LC filter using a power inductor and aluminium electrolytic capacitors.

Power inductor loss simulator

This loss simulator for automotive applications enables the simulation of losses and temperature rises due to the current in power inductors.

CAD data

CAD data can be download.

Characteristic viewer

This tool presents various characteristics of a selected part using a graph of the operating frequency, temperature etc.

Inductor guide download

An Introduction to power inductors for automotive applications.