OverviewAll product unitsProduct unitPassive ComponentsProduct groupPower MagneticsProduct familyCoupled Power InductorsProduct seriesWE-TDC SMT Shielded Coupled Inductor

WE-TDC SMT Shielded Coupled Inductor

Size Dimen­sionsL
(mm)
W
(mm)
H
(mm)
8018 8 8 1.8
8038 8 8 3.8

Characteristics

  • Core material: NiZn
  • Low profile
  • Magnetical shielded which results in a low leakage field
  • 8x8 mm case
  • Operating temperature range -40 up to 125°C
  • 1:1 transformer
  • Low self-losses
  • Higher Self Resonant Frequency
  • Low leakage inductance
  • Coupled inductor with two identical windings
  • Recommended solder profile: Reflow

Applications

  • Non-Isolated Flyback Converter
  • Buck or Boost with auxiliary winding
  • BUCK-BOOST, SEPIC, ZETA & CUK Converter
  • 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
8018
8038
Order Code Data­sheet Simu­lation DownloadsL1
(µH)
L2
(µH)
nIR
(A)
IR 2
(A)
ISAT
(A)
ISAT1
(A)
ISAT2
(A)
RDC1 typ
(mΩ)
RDC2 typ
(mΩ)
RDC1 max
(mΩ)
RDC2 max
(mΩ)
fres 1
(MHz)
Design Kit Samples
744894300033SPEC
8 files 0.33 0.33 1:1 4 4 9 9 9 11.1 11.1 15 15 280744894
744894300068SPEC
8 files 0.68 0.68 1:1 3.3 3.3 6.5 6.5 6.5 16.3 16.3 21 21 190744894
74489430010SPEC
8 files 1 1 1:1 2.85 2.85 5.1 5.1 5.1 22.2 22.2 28 28 136744894
74489430022SPEC
8 files 2.2 2.2 1:1 1.9 1.9 3.5 3.5 3.5 49.5 49.5 58 58 85744894
74489430027SPEC
8 files 2.7 2.7 1:1 1.85 1.85 3 3 3 69.5 69.5 80.5 80.5 65744894
74489430039SPEC
8 files 3.9 3.9 1:1 1.6 1.6 2.55 2.55 2.55 82 82 94 94 60744894
74489430056SPEC
8 files 5.6 5.6 1:1 1.45 1.45 2.2 2.2 2.2 114 114 131 131 50744894
74489430068SPEC
7 files 6.8 6.8 1:1 1.25 1.25 2 2 2 128 128 146 146 46744894
74489430100SPEC
8 files 10 10 1:1 1 1 1.65 1.65 1.65 190 190 215 215 35744894
74489430120SPEC
8 files 12 12 1:1 0.95 0.95 1.55 1.55 1.55 202 202 227 227 33744894
74489430150SPEC
8 files 15 15 1:1 0.85 0.85 1.25 1.3 1.3 262 262 295 295 29744894
74489430180SPEC
8 files 18 18 1:1 0.8 0.8 1.2 1.2 1.2 345 345 380 380 27744894
74489430220SPEC
7 files 22 22 1:1 0.7 0.7 1.1 1.1 1.1 435 435 480 480 17744894
744894400039SPEC
8 files 0.39 0.39 1:1 4.5 4.5 14 14 14 11.6 11.6 14.5 14.5 210744894
744894400082SPEC
8 files 0.82 0.82 1:1 3.7 3.7 9.6 9.6 9.6 15.9 15.9 20 20 140744894
74489440012SPEC
8 files 1.2 1.2 1:1 3.05 3.05 7.5 7.5 7.5 20.2 20.2 26 26 90744894
74489440018SPEC
8 files 1.8 1.8 1:1 2.85 2.85 5.8 5.8 5.8 25.5 25.5 31 31 60744894
74489440027SPEC
8 files 2.7 2.7 1:1 2.5 2.5 5.1 5.1 5.1 34.5 34.5 40 40 55
74489440036SPEC
8 files 3.6 3.6 1:1 2.3 2.3 4.6 4.6 4.6 47 47 53 53 45
74489440047SPEC
8 files 4.7 4.7 1:1 1.85 1.85 4.2 4.2 4.2 54.5 54.5 64 64 30744894
74489440068SPEC
7 files 6.8 6.8 1:1 1.45 1.45 3.2 3.2 3.2 88 88 100 100 25744894
74489440100SPEC
7 files 10 10 1:1 1.35 1.35 2.6 2.6 2.6 113 113 128 128 23744894
74489440120SPEC
8 files 12 12 1:1 1.3 1.3 2.3 2.3 2.3 117 117 132 132 20744894
74489440150SPEC
8 files 15 15 1:1 1.1 1.1 2.2 2.2 2.2 165 165 185 185 17744894
74489440180SPEC
8 files 18 18 1:1 1.05 1.05 1.9 1.9 1.9 179 179 201 201 15744894
74489440220SPEC
8 files 22 22 1:1 1 1 1.8 1.8 1.8 203 203 228 228 14744894
Order Code Data­sheet Simu­lation
744894300033SPEC
744894300068SPEC
74489430010SPEC
74489430022SPEC
74489430027SPEC
74489430039SPEC
74489430056SPEC
74489430068SPEC
74489430100SPEC
74489430120SPEC
74489430150SPEC
74489430180SPEC
74489430220SPEC
744894400039SPEC
744894400082SPEC
74489440012SPEC
74489440018SPEC
74489440027SPEC
74489440036SPEC
74489440047SPEC
74489440068SPEC
74489440100SPEC
74489440120SPEC
74489440150SPEC
74489440180SPEC
74489440220SPEC
Samples
Order Code Data­sheet Simu­lation DownloadsL1
(µH)
L2
(µH)
nIR
(A)
IR 2
(A)
ISAT
(A)
ISAT1
(A)
ISAT2
(A)
RDC1 typ
(mΩ)
RDC2 typ
(mΩ)
RDC1 max
(mΩ)
RDC2 max
(mΩ)
fres 1
(MHz)
Design Kit Samples

REDEXPERT loss simulation

Find the best inductor!

REDEXPERT has the world’s most accurate AC loss model, which even includes the DC-bias current. With dedicated DC-DC topologies or the generic loss simulator, you can accurately determine the AC and DC losses for your converter. The model includes the core material, shape and winding structure of the inductor. REDEXPERT recommends suitable inductors and allows you to add more filters to find the best inductor for your application.

Assortments

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

Videos

WE-MCRI – Innovative Molded Coupled Inductor by Würth Elektronik eiSos