WE-FLEX Flexible Transformer for DC/DC Converter

  • Picture
  • Dimensions
Please choose size
Size L
(mm)
W
(mm)
H
(mm)
Version
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

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.

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
(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 IGS-749196101-rev1.igsSTEP-749196101-rev1.stp 749196
PDF 749196111 27.4 1:1:1:1:1:1 0.55 0.22 344 32.9 0.21 500 IGS-749196111-rev1.igsSTEP-749196111-rev1.stp 749196
PDF 749196121 14.7 1:1:1:1:1:1 0.55 0.54 344 32.9 0.21 500 IGS-749196121-rev1.igsSTEP-749196121-rev1.stp 749196
PDF 749196131 10.9 1:1:1:1:1:1 0.55 0.73 344 32.9 0.21 500 IGS-749196131-rev1.igsSTEP-749196131-rev1.stp 749196
PDF 749196141 8.5 1:1:1:1:1:1 0.55 0.96 344 32.9 0.21 500 IGS-749196141-rev1.igsSTEP-749196141-rev1.stp 749196
SPEC Order Code LBASE
(µH)
n IR BASE
(A)
ISAT BASE
(A)
RDC BASE
(mΩ)
∫Udt Base
(µVs)
LS BASE
(µH)
UT
(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 IGS-749196201-rev1.igsSTEP-749196201-rev1.stp 749196
PDF 749196211 21.6 1:1:1:1:1:1 0.95 0.36 159 48.3 0.17 500 IGS-749196211-rev1.igsSTEP-749196211-rev1.stp 749196
PDF 749196221 11.6 1:1:1:1:1:1 0.95 0.84 159 48.3 0.17 500 IGS-749196221-rev1.igsSTEP-749196221-rev1.stp 749196
PDF 749196231 8.3 1:1:1:1:1:1 0.95 1.2 159 48.3 0.17 500 IGS-749196231-rev1.igsSTEP-749196231-rev1.stp 749196
PDF 749196241 6.6 1:1:1:1:1:1 0.95 1.55 159 48.3 0.17 500 IGS-749196241-rev1.igsSTEP-749196241-rev1.stp 749196
SPEC Order Code LBASE
(µH)
n IR BASE
(A)
ISAT BASE
(A)
RDC BASE
(mΩ)
∫Udt Base
(µVs)
LS BASE
(µH)
UT
(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 IGS-749196301-rev1.igsSTEP-749196301-rev1.stp 749196
PDF 749196311 23.3 1:1:1:1:1:1 0.97 0.33 140 39.8 0.13 500 IGS-749196311-rev1.igsSTEP-749196311-rev1.stp 749196
PDF 749196321 14.2 1:1:1:1:1:1 0.97 0.63 140 39.8 0.13 500 IGS-749196321-rev1.igsSTEP-749196321-rev1.stp 749196
PDF 749196331 9.3 1:1:1:1:1:1 0.97 1.09 140 39.8 0.13 500 IGS-749196331-rev1.igsSTEP-749196331-rev1.stp 749196
PDF 749196341 7.9 1:1:1:1:1:1 0.97 1.33 140 39.8 0.13 500 IGS-749196341-rev1.igsSTEP-749196341-rev1.stp 749196
SPEC Order Code LBASE
(µH)
n IR BASE
(A)
ISAT BASE
(A)
RDC BASE
(mΩ)
∫Udt Base
(µVs)
LS BASE
(µH)
UT
(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 IGS-749196500-rev1.igsSTEP-749196500-rev1.stp 749196
PDF 749196501 196 1:1:1:1:1:1 1.7 0.02 71.1 98.4 0.24 500 IGS-749196501-rev1.igsSTEP-749196501-rev1.stp 749196
PDF 749196510 9.9 1:1:1:1:1:1 1.91 1.17 30 65.6 0.18 500 IGS-749196510-rev1.igsSTEP-749196510-rev1.stp 749196
PDF 749196511 22.3 1:1:1:1:1:1 1.7 0.49 71.1 98.4 0.24 500 IGS-749196511-rev1.igsSTEP-749196511-rev1.stp 749196
PDF 749196520 5.3 1:1:1:1:1:1 1.91 2.53 30 65.6 0.18 500 IGS-749196520-rev1.igsSTEP-749196520-rev1.stp 749196
PDF 749196521 12 1:1:1:1:1:1 1.7 1.73 71.1 98.4 0.24 500 IGS-749196521-rev1.igsSTEP-749196521-rev1.stp 749196
PDF 749196530 4.3 1:1:1:1:1:1 1.91 2.91 30 65.6 0.18 500 IGS-749196530-rev1.igsSTEP-749196530-rev1.stp 749196
PDF 749196531 9.7 1:1:1:1:1:1 1.7 2.2 71.1 98.4 0.24 500 IGS-749196531-rev1.igsSTEP-749196531-rev1.stp 749196
PDF 749196540 3.4 1:1:1:1:1:1 1.91 4.18 30 65.6 0.18 500 IGS-749196540-rev1.igsSTEP-749196540-rev1.stp 749196
PDF 749196541 7.6 1:1:1:1:1:1 1.7 2.46 71.1 98.4 0.24 500 IGS-749196541-rev1.igsSTEP-749196541-rev1.stp 749196

Design Kits

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Tags: WE-FLEX, UtFLEX, Flexible Transformer for SMPS, WE-FLEX Flexible Transformer for DC/DC Converter