<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.7.0">
<drawing>
<library>
<description>Würth Elektronik - Passive Components - Power Magnetics - Coupled Power Inductors - WE-MTCI

Disclaimer: While Würth Elektronik eiSos has made every reasonable effort to ensure the accuracy of the PCB layout models provided, 
Würth Elektronik eiSos does not guarantee the exemption of error on the PCB layout models, nor does Würth Elektronik eiSos guarantee that the PCB layout model is current. 
Würth Elektronik eiSos reserves the right to make any adjustments at any time without notice. 
Würth Elektronik eiSos expressly disclaims all implied warranties regarding this PCB layout model. 

Please contact us for more information: libraries@we-online.com 

Würth Elektronik eiSos GmbH &amp; Co. KG
EMC &amp; Inductive Solutions
www.we-online.com

Fusion360, Library Revision 2026a, 2026-07-22
Copyright: Würth Elektronik</description>
<packages>
<package name="WE-MTCI_5030">
<description>WE-MTCI SMT Multi-Turn Ratio coupled Inductor

Size: 5030, SMT, 4pins
LXWXH=5.2X5.2X3.1mm</description>
</package>
</packages>
<symbols>
<symbol name="WE-MTCI_5030">
<pin name="1" direction="pas"/>
<pin name="2" direction="pas"/>
<pin name="4" direction="pas"/>
<pin name="3" direction="pas"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="WE-MTCI_5030" prefix="L">
<description>WE-MTCI SMT Multi-Turn Ratio coupled Inductor

Characteristics 
Smallest Coupled Inductor with different Turn Ratio and 0.8kV isolation
Magnetically Shielded
1:N Transformer
Operation temperature: -40°C to +125°C

Applications
Ideal solution for buck/boost converter with regulated and un-regulated output voltage
High density Isolated converter application (e.g. Flyback converter)
Step-up or Step-Down Converter with Auxilary winding
Can be use in Auto-transformer application

Details see: www.we-online.com/en/components/products/WE-MTCI

Updated by Ella 2026-07-22
2026(C) Würth Elektronik</description>
<gates>
<gate name="G$1" symbol="WE-MTCI_5030"/>
</gates>
<devices>
<device name="" package="WE-MTCI_5030">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
<connect gate="G$1" pin="2" pad="2"/>
<connect gate="G$1" pin="3" pad="3"/>
<connect gate="G$1" pin="4" pad="4"/>
</connects>
<technologies>
<technology name="_744889015100">
<attribute name="FRE" value="13 MHz"/>
<attribute name="IR" value="0.95 A"/>
<attribute name="ISAT" value="1.5 A"/>
<attribute name="L2" value="22.5 uH"/>
<attribute name="N" value="1:1.5"/>
<attribute name="PART-NUMBER" value="744889015100"/>
<attribute name="RDC1-MAX" value="500 mohm"/>
<attribute name="RDC1-TYP" value="349 mohm"/>
<attribute name="RDC2-MAX" value="600 mohm"/>
<attribute name="RDC2-TYP" value="408 mohm"/>
<attribute name="VALUE" value="10uH / 22.5uH"/>
<attribute name="L1" value="10 uH"/>
<attribute name="SIZE" value="5030"/>
<attribute name="LENGTH" value="5.2mm"/>
<attribute name="WIDTH" value="5.2mm"/>
<attribute name="HEIGHT" value="3.1mm"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="DATASHEET" value="https://www.we-online.com/redexpert/spec/744889015100?ae"/>
</technology>
<technology name="_744889015220">
<attribute name="FRE" value="9.5 MHz"/>
<attribute name="IR" value="0.6 A"/>
<attribute name="ISAT" value="1 A"/>
<attribute name="L2" value="49.5 uH"/>
<attribute name="N" value="1:1.5"/>
<attribute name="PART-NUMBER" value="744889015220"/>
<attribute name="RDC1-MAX" value="1000 mohm"/>
<attribute name="RDC1-TYP" value="662 mohm"/>
<attribute name="RDC2-MAX" value="1200 mohm"/>
<attribute name="RDC2-TYP" value="874 mohm"/>
<attribute name="VALUE" value="22uH / 49.5uH"/>
<attribute name="L1" value="22 uH"/>
<attribute name="SIZE" value="5030"/>
<attribute name="LENGTH" value="5.2mm"/>
<attribute name="WIDTH" value="5.2mm"/>
<attribute name="HEIGHT" value="3.1mm"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="DATASHEET" value="https://www.we-online.com/redexpert/spec/744889015220?ae"/>
</technology>
<technology name="_744889015330">
<attribute name="FRE" value="7 MHz"/>
<attribute name="IR" value="0.45 A"/>
<attribute name="ISAT" value="0.75 A"/>
<attribute name="L2" value="74.25 uH"/>
<attribute name="N" value="1:1.5"/>
<attribute name="PART-NUMBER" value="744889015330"/>
<attribute name="RDC1-MAX" value="1900 mohm"/>
<attribute name="RDC1-TYP" value="1338 mohm"/>
<attribute name="RDC2-MAX" value="2400 mohm"/>
<attribute name="RDC2-TYP" value="1782 mohm"/>
<attribute name="VALUE" value="33uH / 74.25uH"/>
<attribute name="L1" value="33 uH"/>
<attribute name="SIZE" value="5030"/>
<attribute name="LENGTH" value="5.2mm"/>
<attribute name="WIDTH" value="5.2mm"/>
<attribute name="HEIGHT" value="3.1mm"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="DATASHEET" value="https://www.we-online.com/redexpert/spec/744889015330?ae"/>
</technology>
<technology name="_744889020100">
<attribute name="FRE" value="11.5 MHz"/>
<attribute name="IR" value="0.95 A"/>
<attribute name="ISAT" value="1.5 A"/>
<attribute name="L2" value="40 uH"/>
<attribute name="N" value="1:2"/>
<attribute name="PART-NUMBER" value="744889020100"/>
<attribute name="RDC1-MAX" value="500 mohm"/>
<attribute name="RDC1-TYP" value="358 mohm"/>
<attribute name="RDC2-MAX" value="750 mohm"/>
<attribute name="RDC2-TYP" value="552 mohm"/>
<attribute name="VALUE" value="10uH / 40uH"/>
<attribute name="L1" value="10 uH"/>
<attribute name="SIZE" value="5030"/>
<attribute name="LENGTH" value="5.2mm"/>
<attribute name="WIDTH" value="5.2mm"/>
<attribute name="HEIGHT" value="3.1mm"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="DATASHEET" value="https://www.we-online.com/redexpert/spec/744889020100?ae"/>
</technology>
<technology name="_744889020220">
<attribute name="FRE" value="7 MHz"/>
<attribute name="IR" value="0.6 A"/>
<attribute name="ISAT" value="1 A"/>
<attribute name="L2" value="88 uH"/>
<attribute name="N" value="1:2"/>
<attribute name="PART-NUMBER" value="744889020220"/>
<attribute name="RDC1-MAX" value="1000 mohm"/>
<attribute name="RDC1-TYP" value="712 mohm"/>
<attribute name="RDC2-MAX" value="1600 mohm"/>
<attribute name="RDC2-TYP" value="1208 mohm"/>
<attribute name="VALUE" value="22uH / 88uH"/>
<attribute name="L1" value="22 uH"/>
<attribute name="SIZE" value="5030"/>
<attribute name="LENGTH" value="5.2mm"/>
<attribute name="WIDTH" value="5.2mm"/>
<attribute name="HEIGHT" value="3.1mm"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="DATASHEET" value="https://www.we-online.com/redexpert/spec/744889020220?ae"/>
</technology>
<technology name="_744889020330">
<attribute name="FRE" value="5.8 MHz"/>
<attribute name="IR" value="0.45 A"/>
<attribute name="ISAT" value="0.75 A"/>
<attribute name="L2" value="132 uH"/>
<attribute name="N" value="1:2"/>
<attribute name="PART-NUMBER" value="744889020330"/>
<attribute name="RDC1-MAX" value="1900 mohm"/>
<attribute name="RDC1-TYP" value="1383 mohm"/>
<attribute name="RDC2-MAX" value="3200 mohm"/>
<attribute name="RDC2-TYP" value="2418 mohm"/>
<attribute name="VALUE" value="33uH / 132uH"/>
<attribute name="L1" value="33 uH"/>
<attribute name="SIZE" value="5030"/>
<attribute name="LENGTH" value="5.2mm"/>
<attribute name="WIDTH" value="5.2mm"/>
<attribute name="HEIGHT" value="3.1mm"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="DATASHEET" value="https://www.we-online.com/redexpert/spec/744889020330?ae"/>
</technology>
<technology name="_744889030100">
<attribute name="FRE" value="8 MHz"/>
<attribute name="IR" value="0.95 A"/>
<attribute name="ISAT" value="1.5 A"/>
<attribute name="L2" value="90 uH"/>
<attribute name="N" value="1:3"/>
<attribute name="PART-NUMBER" value="744889030100"/>
<attribute name="RDC1-MAX" value="500 mohm"/>
<attribute name="RDC1-TYP" value="363 mohm"/>
<attribute name="RDC2-MAX" value="1100 mohm"/>
<attribute name="RDC2-TYP" value="846 mohm"/>
<attribute name="VALUE" value="10uH / 90uH"/>
<attribute name="L1" value="10 uH"/>
<attribute name="SIZE" value="5030"/>
<attribute name="LENGTH" value="5.2mm"/>
<attribute name="WIDTH" value="5.2mm"/>
<attribute name="HEIGHT" value="3.1mm"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="DATASHEET" value="https://www.we-online.com/redexpert/spec/744889030100?ae"/>
</technology>
<technology name="_744889030220">
<attribute name="FRE" value="5 MHz"/>
<attribute name="IR" value="0.6 A"/>
<attribute name="ISAT" value="1 A"/>
<attribute name="L2" value="198 uH"/>
<attribute name="N" value="1:3"/>
<attribute name="PART-NUMBER" value="744889030220"/>
<attribute name="RDC1-MAX" value="1000 mohm"/>
<attribute name="RDC1-TYP" value="732 mohm"/>
<attribute name="RDC2-MAX" value="2500 mohm"/>
<attribute name="RDC2-TYP" value="1872 mohm"/>
<attribute name="VALUE" value="22uH / 198uH"/>
<attribute name="L1" value="22 uH"/>
<attribute name="SIZE" value="5030"/>
<attribute name="LENGTH" value="5.2mm"/>
<attribute name="WIDTH" value="5.2mm"/>
<attribute name="HEIGHT" value="3.1mm"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="DATASHEET" value="https://www.we-online.com/redexpert/spec/744889030220?ae"/>
</technology>
<technology name="_744889030330">
<attribute name="FRE" value="4 MHz"/>
<attribute name="IR" value="0.45 A"/>
<attribute name="ISAT" value="0.75 A"/>
<attribute name="L2" value="297 uH"/>
<attribute name="N" value="1:3"/>
<attribute name="PART-NUMBER" value="744889030330"/>
<attribute name="RDC1-MAX" value="1900 mohm"/>
<attribute name="RDC1-TYP" value="1466 mohm"/>
<attribute name="RDC2-MAX" value="5200 mohm"/>
<attribute name="RDC2-TYP" value="3758 mohm"/>
<attribute name="VALUE" value="33uH / 297uH"/>
<attribute name="L1" value="33 uH"/>
<attribute name="SIZE" value="5030"/>
<attribute name="LENGTH" value="5.2mm"/>
<attribute name="WIDTH" value="5.2mm"/>
<attribute name="HEIGHT" value="3.1mm"/>
<attribute name="MOUNT" value="SMT"/>
<attribute name="DATASHEET" value="https://www.we-online.com/redexpert/spec/744889030330?ae"/>
</technology>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
</drawing>
</eagle>
