TDK Electronics · TDK Europe

ERUC23 Coupled Inductors

SMD Coupled Inductors with High Efficiency  

Intro Pic

TDK has expanded its flat wire ERU inductors by integrating two windings into one component with the benefit of inductive coupling. Inductive coupling reduces the ripple current which lowers the switching losses of the power transistors and improves overall system efficiency. There is also the benefit of low loss ferrite core material and optimized coupled coil construction. 

Features & Benefits

Summary of Features

Electrical characteristics 

  • Exceptionally high saturation currents of up to 97 A 
  • Very low RDC values as low as 0.82 mΩ 
  • High temperature range of up to 150 °C 

Construction 

  • Optimized coupled coil construction
  • Outstanding mechanical and thermal robustness 

Benefits

The two in one coupled Inductor as compared to two individual inductors benefits include: 

  • Significantly reduced footprint  
  • Improved efficiency due to reduced ripple current 
  • High saturation current 
  • Low DC resistance 
  • AEC-Q200 
  • Compact size
  • RoHS-compatible 

Main and Typical Applications

In general, the ERUC series can replace two identical inductors operating with dual-phase interleaved topologies. Typical topologies are hybrid converters, buck, boost, buck-boost as shown below: 

1 Buck Teaser Pic

Buck

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2 Boost Teaser Pic

Boost

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3 BuckBoost Teaser Pic

Buck-Boost

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4 Hybrid Converters Teaser Pic

Hybrid Converters

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Suitable for

Ideally suited for dual-phase interleaved topologies. This coupled Inductor is specifically well adopted in hybrid converters (48 V to 12 V conversion), buck-boost for RF power amplifier, traditional buck converters and so on. This product will target mainly the server and 48-V automotive market as well as general power market.

Telecom, Server SMPS
Energy Systems
xEV

Get data sheets and search

PDF Size/Series Design Inductance (µH) Rated current (Typ.) (A) Type
new 		ERUC23 --- 1.4 - 4.1 50 - 97 ERUC23

In order to download up to 20 files together as zip, please mark them with the check box. To start the download, please click the Download button at the end of the list.

  • General technical information
  • EMC services
  • Quality and environment
  • Cautions and warnings
  • Symbols and terms
  • I core chokes: General
  • Ring core chokes with iron powder core: General
  • Sine-wave chokes: General
  • Current-compensated chokes: General

In order to download up to 20 files together as zip, please mark them with the check box. To start the download, please click the Download button at the end of the list.

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Resources

Step file ERUC23

STEP - 1.1 MB Download

Design support

Specify Customized Requirements

Model libraries

Models of the complete SIMID series for the simulation programs PSPICE, HSPICE, LTspice and ANSYS.

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Customized S-parameters

Do you need something special?
Please use our inquiry form to specify your requirements for customer-specific S-parameters. 

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Material data sheets

Typical compositions of product groups by selected representatives. Materials are listed with their percentage weight distribution per component.

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