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WE-FLEX Flexible Transformer for DC/DC Converter

  • Picture
  • Dimensions
WE-FLEX Flexible Transformer for DC/DC Converter Picture
Please choose size
Size L
(mm)		 W
(mm)		 H
(mm)
ER11/5 12.9 13.0 6.2
ER14.5/6 16.3 16.8 7.4
EFD15 17.5 22.1 8.3
EFD20 21.0 29.5 10.8

Characteristics

  • Transformer with 6 identical windings
  • 4 sizes with 5 different lengths of air gap each
  • Isolation voltage 500 VDC
  • Low leakage inductance
  • Operating temperature: –40 ºC to +125 ºC
  • By using different circuits more than 375 transformer solutions and about 125 choke solutions possible. Consequently, quick prototyping possibilities
  • Free download of design software for flyback transformers Component Selector

Applications

  • All kind of switching regulators
    -Flyback converters
    -Forward converters
    -Push-pull converters
    -Step-up/step-down converters
    -SEPIC converter

Products

  • ER11/5
  • ER14.5/6
  • EFD15
  • EFD20
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SPEC Order Code LBASE
(µH)		 n IR BASE
(A)		 ISAT BASE
(A)		 RDC BASE
(mΩ)		 ∫Udt Base
(µVs)		 LS Base
(µH)		 UT 1
(V (AC))		 Files Design Kit Samples
PDF 749196101 198.6 1:1:1:1:1:1 0.55 0.01 344 32.9 0.21 500 749196101 (rev1).stp749196101 (rev1).igs 749196
PDF 749196111 27.4 1:1:1:1:1:1 0.55 0.22 344 32.9 0.21 500 749196111 (rev1).stp749196111 (rev1).igs 749196
PDF 749196121 14.7 1:1:1:1:1:1 0.55 0.54 344 32.9 0.21 500 749196121 (rev1).stp749196121 (rev1).igs 749196
PDF 749196131 10.9 1:1:1:1:1:1 0.55 0.73 344 32.9 0.21 500 749196131 (rev1).stp749196131 (rev1).igs 749196
PDF 749196141 8.5 1:1:1:1:1:1 0.55 0.96 344 32.9 0.21 500 749196141 (rev1).stp749196141 (rev1).igs 749196
SPEC Order Code LBASE
(µH)		 n IR BASE
(A)		 ISAT BASE
(A)		 RDC BASE
(mΩ)		 ∫Udt Base
(µVs)		 LS Base
(µH)		 UT 1
(V (AC))		 Files Design Kit Samples
PDF 749196201 140 1:1:1:1:1:1 0.95 0.02 159 48.3 0.17 500 749196201 (rev1).stp749196201 (rev1).igs 749196
PDF 749196211 21.6 1:1:1:1:1:1 0.95 0.36 159 48.3 0.17 500 749196211 (rev1).stp749196211 (rev1).igs 749196
PDF 749196221 11.6 1:1:1:1:1:1 0.95 0.84 159 48.3 0.17 500 749196221 (rev1).stp749196221 (rev1).igs 749196
PDF 749196231 8.3 1:1:1:1:1:1 0.95 1.2 159 48.3 0.17 500 749196231 (rev1).stp749196231 (rev1).igs 749196
PDF 749196241 6.6 1:1:1:1:1:1 0.95 1.55 159 48.3 0.17 500 749196241 (rev1).stp749196241 (rev1).igs 749196
SPEC Order Code LBASE
(µH)		 n IR BASE
(A)		 ISAT BASE
(A)		 RDC BASE
(mΩ)		 ∫Udt Base
(µVs)		 LS Base
(µH)		 UT 1
(V (AC))		 Files Design Kit Samples
PDF 749196301 153.8 1:1:1:1:1:1 0.97 0.02 140 39.8 0.13 500 749196301 (rev1).stp749196301 (rev1).igs 749196
PDF 749196311 23.3 1:1:1:1:1:1 0.97 0.33 140 39.8 0.13 500 749196311 (rev1).stp749196311 (rev1).igs 749196
PDF 749196321 14.2 1:1:1:1:1:1 0.97 0.63 140 39.8 0.13 500 749196321 (rev1).stp749196321 (rev1).igs 749196
PDF 749196331 9.3 1:1:1:1:1:1 0.97 1.09 140 39.8 0.13 500 749196331 (rev1).stp749196331 (rev1).igs 749196
PDF 749196341 7.9 1:1:1:1:1:1 0.97 1.33 140 39.8 0.13 500 749196341 (rev1).stp749196341 (rev1).igs 749196
SPEC Order Code LBASE
(µH)		 n IR BASE
(A)		 ISAT BASE
(A)		 RDC BASE
(mΩ)		 ∫Udt Base
(µVs)		 LS Base
(µH)		 UT 1
(V (AC))		 Files Design Kit Samples
PDF 749196500 87.1 1:1:1:1:1:1 1.91 0.03 30 65.6 0.18 500 749196500 (rev1).stp749196500 (rev1).igs 749196
PDF 749196501 196 1:1:1:1:1:1 1.7 0.02 71.1 98.4 0.24 500 749196501 (rev1).stp749196501 (rev1).igs 749196
PDF 749196510 9.9 1:1:1:1:1:1 1.91 1.17 30 65.6 0.18 500 749196510 (rev1).stp749196510 (rev1).igs 749196
PDF 749196511 22.3 1:1:1:1:1:1 1.7 0.49 71.1 98.4 0.24 500 749196511 (rev1).stp749196511 (rev1).igs 749196
PDF 749196520 5.3 1:1:1:1:1:1 1.91 2.53 30 65.6 0.18 500 749196520 (rev1).stp749196520 (rev1).igs 749196
PDF 749196521 12 1:1:1:1:1:1 1.7 1.73 71.1 98.4 0.24 500 749196521 (rev1).stp749196521 (rev1).igs 749196
PDF 749196530 4.3 1:1:1:1:1:1 1.91 2.91 30 65.6 0.18 500 749196530 (rev1).stp749196530 (rev1).igs 749196
PDF 749196531 9.7 1:1:1:1:1:1 1.7 2.2 71.1 98.4 0.24 500 749196531 (rev1).stp749196531 (rev1).igs 749196
PDF 749196540 3.4 1:1:1:1:1:1 1.91 4.18 30 65.6 0.18 500 749196540 (rev1).stp749196540 (rev1).igs 749196
PDF 749196541 7.6 1:1:1:1:1:1 1.7 2.46 71.1 98.4 0.24 500 749196541 (rev1).stp749196541 (rev1).igs 749196

Downloads

Family Specific Files
Files
download PowerMagnetics (rev18d).lbr download ALTIUM-WE-FLEX-rev17a.IntLib download CADENCE16-6-WE-FLEX-rev15a.zip download Cadstar_POWER_MAGNETICS (rev1).zip download Spectre_Library_Power-Inductors (rev17b).mod
Article Specific Files
Files
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Design Kits

Articles from this family can be found in the following Design Kits:

Comments

  • The WE-FLEX series of transformers consist of 6 independent windings which can be connected on the board as required. The 25 transformers facilitate more than 500 transformer and choke variants. The transformers still show an outstandingly low level of leakage inductance. Parts without airgap are especially designed for buck derived topologies like forward or push-pull converters. The high flexibility of the transformers allows developers to realize their own transformers without having to resort to a customer-specific transformer. Power levels of between 1 and 50 Watts can be transformed with the WE-FLEX series transformers. They can be used at switching frequencies of up to 1 MHz.
Tags: WE-FLEX, UtFLEX, Flexible Transformer for SMPS, WE-FLEX Flexible Transformer for DC/DC Converter