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WE-FLEX HV Flexible Transformer for DC/DC Converter

Size Dimen­sionsL
(mm)
W
(mm)
H
(mm)
ER11.5 12.9 13 6.2
ER14.5/6 16.3 16.8 7.4
EFD15 22.1 17.5 9
EFD20 29.5 21.5 12

Characteristics

  • Transformer with 6 identical windings
  • 4 sizes with 5 different lengths of air gap each
  • Isolation voltage up to 1.5 kVAC
  • 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
  • EFD size parts provide Basic insulation for a working voltage of 250VRMS when they are connected appropriate

Applications

  • Flyback converters
  • Forward converters
  • Push-pull converters
  • Step-up/step-down converters
  • SEPIC

Products

All
ER11.5
ER14.5/6
EFD15
EFD20
Order Code Data­sheet DownloadsLBASE
(µH)
nIR BASE
(A)
ISAT BASE
(A)
TypeRDC BASE
(mΩ)
∫Udt Base
(µVs)
LS Base
(µH)
VT
(V (AC))
Samples
749196547SPEC
7 files 3.4 1:1:1:1:1:1 2.3 3.93 gapped 36 83.6 0.18 1500
749196537SPEC
7 files 4.3 1:1:1:1:1:1 2.3 3.24 gapped 36 83.6 0.18 1500
749196527SPEC
7 files 5.3 1:1:1:1:1:1 2.3 2.81 gapped 36 83.6 0.18 1500
749196248SPEC
7 files 6.6 1:1:1:1:1:1 0.8 1.6 gapped 200 63.4 0.17 1500
749196548SPEC
7 files 7.6 1:1:1:1:1:1 1.35 2.98 gapped 102 123.4 0.24 1500
749196348SPEC
7 files 7.9 1:1:1:1:1:1 0.83 1.41 gapped 145 61.3 0.13 1500
749196238SPEC
7 files 8.3 1:1:1:1:1:1 0.8 1.3 gapped 200 63.4 0.17 1500
749196148SPEC
7 files 8.5 1:1:1:1:1:1 0.5 1.02 gapped 344 49.3 0.3 1500
749196338SPEC
7 files 9.3 1:1:1:1:1:1 0.83 1.13 gapped 145 61.3 0.13 1500
749196538SPEC
7 files 9.7 1:1:1:1:1:1 1.35 2.2 gapped 102 123.4 0.24 1500
749196517SPEC
7 files 9.9 1:1:1:1:1:1 2.3 1.35 gapped 36 83.6 0.18 1500
749196138SPEC
7 files 10.9 1:1:1:1:1:1 0.5 0.8 gapped 344 49.3 0.3 1500
749196228SPEC
7 files 11.6 1:1:1:1:1:1 0.8 0.94 gapped 200 63.4 0.17 1500
749196528SPEC
7 files 12 1:1:1:1:1:1 1.35 1.71 gapped 102 123.4 0.24 1500
749196328SPEC
7 files 14.2 1:1:1:1:1:1 0.83 0.72 gapped 145 61.3 0.13 1500
749196128SPEC
7 files 14.7 1:1:1:1:1:1 0.5 0.55 gapped 344 49.3 0.3 1500
749196218SPEC
7 files 21.6 1:1:1:1:1:1 0.8 0.48 gapped 200 63.4 0.17 1500
749196518SPEC
7 files 22.3 1:1:1:1:1:1 1.35 0.93 gapped 102 123.4 0.24 1500
749196318SPEC
7 files 23.3 1:1:1:1:1:1 0.83 0.43 gapped 145 61.3 0.13 1500
749196118SPEC
7 files 27.4 1:1:1:1:1:1 0.5 0.29 gapped 344 49.3 0.3 1500
749196507SPEC
7 files 87.1 1:1:1:1:1:1 2.3 0.16 ungapped 36 86.3 0.18 1500
749196208SPEC
7 files 140 1:1:1:1:1:1 0.8 0.07 ungapped 200 63.4 0.17 1500
749196308SPEC
7 files 153.8 1:1:1:1:1:1 0.83 0.06 ungapped 145 61.3 0.13 1500
749196508SPEC
7 files 196 1:1:1:1:1:1 1.35 0.1 ungapped 102 123.4 0.24 1500
749196108SPEC
7 files 224.6 1:1:1:1:1:1 0.5 0.04 ungapped 344 49.3 0.3 1500
Order Code Data­sheet
749196547SPEC
749196537SPEC
749196527SPEC
749196248SPEC
749196548SPEC
749196348SPEC
749196238SPEC
749196148SPEC
749196338SPEC
749196538SPEC
749196517SPEC
749196138SPEC
749196228SPEC
749196528SPEC
749196328SPEC
749196128SPEC
749196218SPEC
749196518SPEC
749196318SPEC
749196118SPEC
749196507SPEC
749196208SPEC
749196308SPEC
749196508SPEC
749196108SPEC
Samples
Order Code Data­sheet DownloadsLBASE
(µH)
nIR BASE
(A)
ISAT BASE
(A)
TypeRDC BASE
(mΩ)
∫Udt Base
(µVs)
LS Base
(µH)
VT
(V (AC))
Samples