WE-SI Leaded Toroidal Storage Chokes

Würth Elektronik WE-SI Leaded Toroidal Storage Chokes are made up of iron powder materials, which allow for low core loss. These shielded storage chokes feature a low magnetic stray field and a rated current of 1.1A to 14.5A. Würth Elektronik WE-SI Leaded Toroidal Storage Chokes are ideally suited for use in a variety of switching regulators.

Results: 15
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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
Number of Channels
Series
Termination Style
Inductance
Tolerance
Maximum DC Current
Maximum DC Resistance
Self Resonant Frequency
Minimum Operating Temperature
Maximum Operating Temperature
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Wurth Elektronik Common Mode Chokes / Filters WE-SI 200uH 2.2A DCR=180mOhms
Datasheet
26In Stock
200Expected 10/07/2026
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 200 uH 20 % 2.2 A 180 mOhms 3 MHz - 40 C + 105 C 18 mm x 9 mm 9 mm Bulk Toroidal Storage Chokes Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 345uH 2.1A DCR=0.2Ohms
Datasheet
150In Stock
Min.: 1
Mult.: 1

PCB Mount WE-SI Radial 20 % - 40 C + 105 C Bulk Fixed Inductors Leaded Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 49uH 5.8A DCR=0.05mOhms
Datasheet
170In Stock
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 49 uH 20 % 5.8 A 50 uOhms - 25 C + 65 C 21 mm x 10.9 mm 10.9 mm Bulk Toroidal Chokes Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 75uH 5.8A DCR=0.04mOhms
Datasheet
68In Stock
100Expected 10/07/2026
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 75 uH 20 % 5.8 A 40 mOhms - 25 C + 65 C 24 mm x 13.9 mm 13.9 mm Bulk Toroidal Chokes Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 157uH 5.1A DCR=63mOhms
Datasheet
3In Stock
200Expected 30/10/2026
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 157 uH 20 % 5.1 A 63 mOhms 3 MHz - 25 C + 65 C 31 mm x 13.5 mm 13.5 mm Bulk Toroidal Chokes Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 630uH 3.1A DCR=175mOhms
Datasheet
78In Stock
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 630 uH 20 % 3.1 A 175 mOhms 1.5 MHz - 25 C + 65 C 31 mm x 15 mm 15 mm Bulk Toroidal Chokes Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 48uH 8.1A DCR=25mOhms
Datasheet
89In Stock
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 48 uH 20 % 8.1 A 25 mOhms 13.6 MHz - 40 C + 105 C 30 mm x 12 mm 12 mm Bulk Toroidal Storage Chokes Leaded Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 172uH 6.5A DCR=55mOhms
Datasheet
45In Stock
32Expected 10/07/2026
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 172 uH 20 % 6.5 A 55 mOhms 3.1 MHz - 40 C + 105 C 16.5 mm Bulk Toroidal Storage Chokes Leaded Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 380uH 6.2A DCR=70mOhms
Datasheet
47In Stock
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 380 uH 20 % 6.2 A 70 mOhms 1.5 MHz - 40 C + 105 C 44 mm 16.1 mm Bulk Common Mode Chokes Toroidal
Wurth Elektronik Common Mode Chokes / Filters WE-SI 1.619mH 1.8A DCR=480mOhms
Datasheet
60Expected 27/07/2026
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 1.619 mH 20 % 1.8 A 480 mOhms 500 kHz - 40 C + 105 C 30 mm x 14.5 mm 14.5 mm Bulk Toroidal Storage Chokes Leaded Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 26uH 10.3A DCR=15mOhms
Datasheet
110Expected 03/07/2026
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 26 uH 20 % 10.3 A 15 mOhms 25 MHz - 40 C + 105 C 28.5 mm x 14.5 mm 14.5 mm Tray Chokes Leaded Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI Leaded Toroidal Storage Choke 34 uH IR = 5.2A Isat = 1.8A RDC = 0.038 OhmS
Datasheet
Non-Stocked Lead-Time 30 Weeks
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 34 uH 20 % 5.2 A 38 mOhms - 25 C + 65 C 17 mm x 11 mm 11 mm Bulk Toroidal Chokes Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 346uH 3.8A DCR=140mOhms
Datasheet
Non-Stocked Lead-Time 59 Weeks
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 346 uH 20 % 3.8 A 140 mOhms 3.3 MHz - 25 C + 65 C 31 mm x 15 mm 15 mm Bulk Toroidal Chokes Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 1.124mH 3.4A DCR=280mOhms
Datasheet
Non-Stocked Lead-Time 59 Weeks
Min.: 1
Mult.: 1

PCB Mount 1 Channel WE-SI Radial 1.124 mH 20 % 3.4 A 280 mOhms 650 kHz - 25 C + 65 C 44 mm x 18.5 mm 18.5 mm Tray Toroidal Chokes Toroidal Storage Choke
Wurth Elektronik Common Mode Chokes / Filters WE-SI 56uH 17A DCR=8.5mOhms Non-Stocked
Min.: 5.000
Mult.: 5.000

PCB Mount 1 Channel WE-SI Through Hole 56 uH 20 % 17 A 8.5 mOhms - 40 C + 125 C 36 mm 23 mm 35 mm Tray Common Mode Filters Toroidal