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WE-DD SMT Shielded Coupled Inductor

Size L
(mm)
W
(mm)
H
(mm)
7332 straight 7.3 7.3 4
7345 straight 7.3 7.3 4.8
1260 straight 12.5 12.5 6.5
1280 straight 12.5 12.5 8.5
1260 crossed 12.5 12.5 6.5
1280 crossed 12.5 12.5 8.5
1210 crossed 12.5 12.5 10.5

Characteristics

  • 1:1 transformer
  • Double inductor with two identical windings
  • 5 different sizes available
  • Operating temperature: –40 ºC to +125 ºC
  • Recommended solder profile: Reflow
  • Custom designs on request

Applications

  • For SEPIC and CUK topologies
  • Flyback applications
  • Switching regulators with second, unregulated output voltage

An Excellent Duet!

The WE-MCRI is an innovative molded coupled inductor with fully automated bifilar winding process. It offers an almost ideal coupling coefficient up to 0.995.

Product video and more

Products

All
7332 straight
7345 straight
1260 straight
1280 straight
1260 crossed
1280 crossed
1210 crossed
Order Code Data­sheet Downloads L1
(µH)
L2
(µH)
IR 1
(A)
IR 2
(A)
ISAT 1
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
fres 1
(MHz)
Type Design Kit Samples
744878001
STE ALT EAG CAD LTS PSP IGS CAD 1.3 1.3 4.4 4.4 6.3 0.027 0.027 0.035 0.035 60 Straight 744870
744874001
STE ALT EAG CAD LTS PSP IGS CAD 1.5 1.5 5.85 5.85 14 0.012 0.012 0.016 0.016 70 Straight
744873001
STE ALT EAG CAD LTS PSP IGS CAD 1.5 1.5 6.25 6.25 18 0.011 0.011 0.015 0.015 75 Straight
7448700015
STE ALT EAG CAD LTS PSP IGS CAD 1.5 1.5 8.6 8.6 17.5 0.012 0.012 0.016 0.016 60 Crossed
744877001
STE ALT EAG CAD LTS PSP IGS CAD 1.8 1.8 4.7 4.7 6.5 0.025 0.025 0.034 0.034 58 Straight 744870
7448709022
STE ALT EAG CAD LTS PSP IGS CAD 2.2 2.2 4.1 4.1 19 0.015 0.015 0.017 0.017 45 Crossed
744878002
STE ALT EAG CAD LTS PSP IGS CAD 2.4 2.4 3.6 3.6 4.8 0.042 0.042 0.052 0.052 53 Straight 744870
744877002
STE ALT EAG CAD LTS PSP IGS CAD 2.4 2.4 4.2 4.2 5.6 0.031 0.031 0.042 0.042 50 Straight 744870
744874002
STE ALT EAG CAD LTS PSP IGS CAD 2.4 2.4 5.5 5.5 11.5 0.013 0.013 0.017 0.017 54 Straight
744873002
STE ALT EAG CAD LTS PSP IGS CAD 2.4 2.4 6 6 14 0.012 0.012 0.016 0.016 54 Straight
744870002
STE ALT EAG CAD LTS PSP IGS CAD 2.4 2.4 7.8 7.8 15 0.014 0.014 0.018 0.018 40 Crossed
744878003
STE ALT EAG CAD LTS PSP IGS CAD 3.3 3.3 3.3 3.3 4 0.052 0.052 0.064 0.064 49 Straight
744877003
STE ALT EAG CAD LTS PSP IGS CAD 3.3 3.3 3.7 3.7 5 0.04 0.04 0.052 0.052 46 Straight 744870
744874003
STE ALT EAG CAD LTS PSP IGS CAD 3.3 3.3 4.91 4.91 8.9 0.017 0.017 0.021 0.021 45 Straight
744873003
STE ALT EAG CAD LTS PSP IGS CAD 3.3 3.3 5.14 5.14 11 0.017 0.017 0.022 0.022 41 Straight
744870003
STE ALT EAG CAD LTS PSP IGS CAD 3.3 3.3 7.1 7.1 12 0.016 0.016 0.021 0.021 30 Crossed
7448709033
STE ALT EAG CAD LTS PSP IGS CAD 3.3 3.3 3.7 3.7 15.5 0.017 0.017 0.02 0.02 35 Crossed
744878004
STE ALT EAG CAD LTS PSP IGS CAD 4.7 4.7 1.3 1.3 3 0.065 0.065 0.075 0.075 46 Straight 744870
744877004
STE ALT EAG CAD LTS PSP IGS CAD 4.7 4.7 2.55 2.55 4 0.052 0.052 0.064 0.064 42 Straight 744870
744874004
STE ALT EAG CAD LTS PSP IGS CAD 4.7 4.7 4.22 4.22 8 0.023 0.023 0.028 0.028 39 Straight 744870
744871004
STE ALT EAG CAD LTS PSP IGS CAD 4.7 4.7 3 3 8 0.023 0.023 0.028 0.028 20 Crossed 744870
744873004
STE ALT EAG CAD LTS PSP IGS CAD 4.7 4.7 4.87 4.87 10 0.019 0.019 0.024 0.024 32 Straight 744870
744870004
STE ALT EAG CAD LTS PSP IGS CAD 4.7 4.7 3.6 3.6 10 0.025 0.025 0.03 0.03 34 Crossed 744870
7448709047
STE ALT EAG CAD LTS PSP IGS CAD 4.7 4.7 3.6 3.6 13 0.019 0.019 0.023 0.023 30 Crossed
744878005
STE ALT EAG CAD LTS PSP IGS CAD 5.6 5.6 1.5 1.5 3 0.095 0.095 0.12 0.12 26 Straight
744877005
STE ALT EAG CAD LTS PSP IGS CAD 5.6 5.6 1.9 1.9 3.5 0.08 0.08 0.095 0.095 23 Straight
744878006
STE ALT EAG CAD LTS PSP IGS CAD 6.8 6.8 1.4 1.4 2.8 0.11 0.11 0.135 0.135 25 Straight
744877006
STE ALT EAG CAD LTS PSP IGS CAD 6.8 6.8 1.8 1.8 3.2 0.085 0.085 0.102 0.102 20 Straight
744874006
STE ALT EAG CAD LTS PSP IGS CAD 6.8 6.8 3.9 3.9 6.8 0.027 0.027 0.032 0.032 33 Straight
744871006
STE ALT EAG CAD LTS PSP IGS CAD 6.8 6.8 2.8 2.8 6.5 0.035 0.035 0.04 0.04 20 Crossed
744870006
STE ALT EAG CAD LTS PSP IGS CAD 6.8 6.8 3.2 3.2 8 0.027 0.027 0.035 0.035 18 Crossed
7448709068
STE ALT EAG CAD LTS PSP IGS CAD 6.8 6.8 3.3 3.3 11.5 0.026 0.026 0.031 0.031 23 Crossed
744878008
STE ALT EAG CAD LTS PSP IGS CAD 8.2 8.2 1.3 1.3 2.7 0.115 0.115 0.14 0.14 22 Straight
744877008
STE ALT EAG CAD LTS PSP IGS CAD 8.2 8.2 1.7 1.7 2.9 0.091 0.091 0.11 0.11 17 Straight
744878100
STE ALT EAG CAD LTS PSP IGS CAD 10 10 1 1 2 0.125 0.125 0.15 0.15 30 Straight 744870
744877100
STE ALT EAG CAD LTS PSP IGS CAD 10 10 1.1 1.1 2.8 0.11 0.11 0.12 0.12 27 Straight 744870
744874100
STE ALT EAG CAD LTS PSP IGS CAD 10 10 3.28 3.28 5.25 0.038 0.038 0.044 0.044 24 Straight 744870
744871100
STE ALT EAG CAD LTS PSP IGS CAD 10 10 2 2 5 0.044 0.044 0.05 0.05 20 Crossed 744870
744873100
STE ALT EAG CAD LTS PSP IGS CAD 10 10 4.2 4.2 7.5 0.031 0.031 0.042 0.042 20 Straight 744870
744870100
STE ALT EAG CAD LTS PSP IGS CAD 10 10 2.7 2.7 7 0.038 0.038 0.044 0.044 18 Crossed 744870
7448709100
STE ALT EAG CAD LTS PSP IGS CAD 10 10 3.2 3.2 8 0.033 0.033 0.04 0.04 20 Crossed 744870
744873150
STE ALT EAG CAD LTS PSP IGS CAD 15 15 3.3 3.3 6.1 0.041 0.041 0.055 0.055 14 Straight
744878220
STE ALT EAG CAD LTS PSP IGS CAD 22 22 0.7 0.7 1.5 0.245 0.245 0.3 0.3 20 Straight
744877220
STE ALT EAG CAD LTS PSP IGS CAD 22 22 0.8 0.8 1.8 0.215 0.215 0.26 0.26 16 Straight 744870
744874220
STE ALT EAG CAD LTS PSP IGS CAD 22 22 2.47 2.47 3.3 0.067 0.067 0.08 0.08 15.5 Straight 744870
744871220
STE ALT EAG CAD LTS PSP IGS CAD 22 22 1.85 1.85 3 0.067 0.067 0.09 0.09 14 Crossed 744870
744873220
STE ALT EAG CAD LTS PSP IGS CAD 22 22 2.79 2.79 5 0.058 0.058 0.07 0.07 11.5 Straight 744870
744870220
STE ALT EAG CAD LTS PSP IGS CAD 22 22 2.45 2.45 5.2 0.062 0.062 0.08 0.08 10 Crossed 744870
7448709220
STE ALT EAG CAD LTS PSP IGS CAD 22 22 3.5 3.5 5 0.064 0.064 0.08 0.08 10 Crossed 744870
744877330
STE ALT EAG CAD LTS PSP IGS CAD 33 33 0.7 0.7 1.5 0.4 0.4 0.5 0.5 8 Straight
744871330
STE ALT EAG CAD LTS PSP IGS CAD 33 33 1.2 1.2 2.8 0.125 0.125 0.17 0.17 6 Crossed
744873330
STE ALT EAG CAD LTS PSP IGS CAD 33 33 2.25 2.25 3.9 0.087 0.087 0.105 0.105 8.9 Straight
7448709330
STE ALT EAG CAD LTS PSP IGS CAD 33 33 2 2 4.4 0.08 0.08 0.1 0.1 6 Crossed 744870
744878470
STE ALT EAG CAD LTS PSP IGS CAD 47 47 0.9 0.9 1 0.6 0.6 0.75 0.75 8 Straight
744874470
STE ALT EAG CAD LTS PSP IGS CAD 47 47 1.8 1.8 2.75 0.13 0.13 0.15 0.15 11 Straight 744870
744871470
STE ALT EAG CAD LTS PSP IGS CAD 47 47 1.1 1.1 2.4 0.145 0.145 0.18 0.18 5 Crossed 744870
744873470
STE ALT EAG CAD LTS PSP IGS CAD 47 47 2.02 2.02 3.1 0.11 0.11 0.12 0.12 7.8 Straight 744870
744870470
STE ALT EAG CAD LTS PSP IGS CAD 47 47 1.45 1.45 3.1 0.125 0.125 0.15 0.15 5 Crossed 744870
7448709470
STE ALT EAG CAD LTS PSP IGS CAD 47 47 1.9 1.9 3.6 0.106 0.106 0.13 0.13 4 Crossed
744873680
STE ALT EAG CAD LTS PSP IGS CAD 68 68 1.66 1.66 2.8 0.163 0.163 0.18 0.18 5.5 Straight
744870680
STE ALT EAG CAD LTS PSP IGS CAD 68 68 1.35 1.35 3 0.17 0.17 0.215 0.215 3.7 Crossed
744878101
STE ALT EAG CAD LTS PSP IGS CAD 100 100 0.3 0.3 0.7 1.4 1.4 1.73 1.73 4 Straight
744877101
STE ALT EAG CAD LTS PSP IGS CAD 100 100 0.65 0.65 0.9 1.029 1.029 1.3 1.3 4 Straight
744874101
STE ALT EAG CAD LTS PSP IGS CAD 100 100 1.2 1.2 1.7 0.285 0.285 0.32 0.32 6 Straight 744870
744871101
STE ALT EAG CAD LTS PSP IGS CAD 100 100 1.5 1.5 1.8 0.293 0.293 0.36 0.36 4 Crossed 744870
744873101
STE ALT EAG CAD LTS PSP IGS CAD 100 100 1.38 1.38 2.2 0.235 0.235 0.255 0.255 4.4 Straight 744870
744870101
STE ALT EAG CAD LTS PSP IGS CAD 100 100 1.4 1.4 2 0.23 0.23 0.3 0.3 4 Crossed 744870
744870151
STE ALT EAG CAD LTS PSP IGS CAD 150 150 1 1 1.7 0.34 0.34 0.4 0.4 2.3 Crossed
744873221
STE ALT EAG CAD LTS PSP IGS CAD 220 220 0.91 0.91 1.6 0.54 0.54 0.58 0.58 2.8 Straight 744870
744870221
STE ALT EAG CAD LTS PSP IGS CAD 220 220 0.9 0.9 1.4 0.53 0.53 0.65 0.65 2 Crossed 744870
744870471
STE ALT EAG CAD LTS PSP IGS CAD 470 470 0.7 0.7 0.9 1 1 1.2 1.2 0.65 Crossed
Order Code Data­sheet
744878001
744874001
744873001
7448700015
744877001
7448709022
744878002
744877002
744874002
744873002
744870002
744878003
744877003
744874003
744873003
744870003
7448709033
744878004
744877004
744874004
744871004
744873004
744870004
7448709047
744878005
744877005
744878006
744877006
744874006
744871006
744870006
7448709068
744878008
744877008
744878100
744877100
744874100
744871100
744873100
744870100
7448709100
744873150
744878220
744877220
744874220
744871220
744873220
744870220
7448709220
744877330
744871330
744873330
7448709330
744878470
744874470
744871470
744873470
744870470
7448709470
744873680
744870680
744878101
744877101
744874101
744871101
744873101
744870101
744870151
744873221
744870221
744870471
Samples
Order Code Data­sheet Downloads L1
(µH)
L2
(µH)
IR 1
(A)
IR 2
(A)
ISAT 1
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
fres 1
(MHz)
Type Design Kit Samples

Assortments

Articles from this product series can be found in the following assortments:

Videos