OverviewAll product unitsProduct unitPassive ComponentsProduct groupPower MagneticsProduct familyShielded Power InductorsProduct seriesWE-SI Leaded Toroidal Storage Choke

WE-SI Leaded Toroidal Storage Choke

Shielded

WE-SI Leaded Toroidal Storage Choke

Characteristics

  • Low magnetic stray field
  • Low core loss due to iron powder materials
  • Available for rated current 1.1 A to 14.5 A

Applications

  • Perfectly suitable for switching regulators from
    – National Semiconductor (LM)
    – Linear Technology (LT)
    – Maxim
  • Used for example in switching power supplies and voltage transformers
  • Switching regulators up to 100 kHz

Products

Order Code Data­sheet Downloads StatusL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
L
(mm)
W
(mm)
H
(mm)
Samples
7441501SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 12 14.5 6.9 0.008 44.6 28.5 14.5 12
744150SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 26 10.3 4 0.015 25 28.5 14.5 12
744131SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 34 5.2 1.8 0.038 11 17 11 12
744111SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 37 3.1 1.8 0.06 23 15.5 8.5 12
744151SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 48 8.1 3 0.025 13.6 30 12.1 12
744132SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 49 5.8 2.2 0.05 16 21 10.9 12
744101SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 50 1.7 1.5 0.18 19.1 15 8.4 12
744112SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 53 3 1.4 0.08 16.8 17 9.5 12
744102SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 73 1.4 1.2 0.23 14 15 8 12
744133SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 75 5.8 2 0.04 15 24 13.9 12
744113SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 80 2.5 1 0.1 6.5 17 9.5 12
744152SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 82 7.7 1.7 0.03 5.4 28 12.1 12
744134SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 92 5.4 2.3 0.05 9 31 13.5 12
744103SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 109 1.3 1 0.3 9.2 15 8 12
744114SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 127 2.3 1 0.12 4.8 18 9.6 20
744153SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 137 7 2 0.05 6.4 32 15.6 12
744135SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 157 5.1 1.5 0.063 3 31 13.5 12
744104SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 167 1.35 0.72 0.4 4.1 17.5 8 12
744154SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 172 6.5 2 0.055 3.1 32 16.5 12
744115SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 200 2.2 0.9 0.18 3 18 9.7 20
744155SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 220 7.1 2 0.06 4.7 43 15.7 12
744105SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 258 1.2 0.6 0.4 3 17.5 8.4 12
744116SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 345 2.1 0.5 0.2 1.8 18 10.1 12
744136SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 346 3.8 1.5 0.14 3.3 31 15.3 12
744156SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 380 6.2 2 0.07 1.5 44 16.1 12
744117SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 390 2 0.8 0.25 1.8 23 12.5 12
744106SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 393 1.1 0.5 0.7 2.1 17.5 8.4 12
744107SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 557 1.1 0.7 0.7 2.5 22.5 12.4 12
744118SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 600 2.2 1.1 0.33 1.3 30 14 12
744137SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 630 3.1 1 0.175 1.5 31 15.3 12
744138SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 727 3.5 1.4 0.24 1.8 42 15 12
744119SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 890 2 0.9 0.4 0.85 30 14 12
744139SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 1124 3.4 1 0.28 0.65 44 18.5 12
7441110SPEC
10 files Active i| Production is active. Expected lifetime: >10 years. 1619 1.8 0.7 0.48 0.5 30 14.5 12
Order Code Data­sheet
7441501SPEC
744150SPEC
744131SPEC
744111SPEC
744151SPEC
744132SPEC
744101SPEC
744112SPEC
744102SPEC
744133SPEC
744113SPEC
744152SPEC
744134SPEC
744103SPEC
744114SPEC
744153SPEC
744135SPEC
744104SPEC
744154SPEC
744115SPEC
744155SPEC
744105SPEC
744116SPEC
744136SPEC
744156SPEC
744117SPEC
744106SPEC
744107SPEC
744118SPEC
744137SPEC
744138SPEC
744119SPEC
744139SPEC
7441110SPEC
Samples
Order Code Data­sheet Downloads StatusL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
L
(mm)
W
(mm)
H
(mm)
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.

Videos

How to choose the right coil type (inductor)?!

Videos

Würth Elektronik Webinar: ClassD inductors - difference to normal power / filter inductors?