Common Mode Filters / Chokes

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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.

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Part #

Common Mode Chokes / Filters WE-SI 200uH 2.2A DCR=180mOhms

744115
Wurth Elektronik
1: S/11.05
23In Stock
200On Order

Mfr. Part #
744115

Mouser Part #
710-744115

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 200uH 2.2A DCR=180mOhms

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Datasheet

23In Stock

200On Order

S/11.05

S/10.59

S/9.54

S/9.23

View

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

Common Mode Chokes / Filters WE-SI 345uH 2.1A DCR=0.2Ohms

744116
Wurth Elektronik
1: S/11.83
150In Stock

Mfr. Part #
744116

Mouser Part #
710-744116

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 345uH 2.1A DCR=0.2Ohms

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Datasheet

150In Stock

S/11.83

S/11.33

S/10.24

S/9.85

View

Min.: 1
Mult.: 1

PCB Mount

WE-SI

Radial

20 %

- 40 C

+ 105 C

Bulk

Fixed Inductors

Leaded Toroidal Storage Choke

Common Mode Chokes / Filters WE-SI 49uH 5.8A DCR=0.05mOhms

744132
Wurth Elektronik
1: S/9.96
170In Stock

Mfr. Part #
744132

Mouser Part #
710-744132

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 49uH 5.8A DCR=0.05mOhms

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Datasheet

170In Stock

S/9.96

S/8.68

S/7.51

S/6.54

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

Common Mode Chokes / Filters WE-SI 75uH 5.8A DCR=0.04mOhms

744133
Wurth Elektronik
1: S/6.38
68In Stock
100On Order

Mfr. Part #
744133

Mouser Part #
710-744133

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 75uH 5.8A DCR=0.04mOhms

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Datasheet

68In Stock

100On Order

S/6.38

S/5.57

S/4.83

S/4.20

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

Common Mode Chokes / Filters WE-SI 157uH 5.1A DCR=63mOhms

744135
Wurth Elektronik
1: S/22.23
3In Stock
200Expected 10/30/2026

Mfr. Part #
744135

Mouser Part #
710-744135

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 157uH 5.1A DCR=63mOhms

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Datasheet

3In Stock

200Expected 10/30/2026

S/22.23

S/21.33

S/18.14

S/14.21

S/12.92

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

Common Mode Chokes / Filters WE-SI 630uH 3.1A DCR=175mOhms

744137
Wurth Elektronik
1: S/18.96
78In Stock

Mfr. Part #
744137

Mouser Part #
710-744137

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 630uH 3.1A DCR=175mOhms

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Datasheet

78In Stock

S/18.96

S/18.14

S/16.39

S/15.80

View

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

Common Mode Chokes / Filters WE-SI 26uH 10.3A DCR=15mOhms

744150
Wurth Elektronik
1: S/8.72
110In Stock

Mfr. Part #
744150

Mouser Part #
710-744150

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 26uH 10.3A DCR=15mOhms

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Datasheet

110In Stock

S/8.72

S/7.59

S/6.58

S/5.72

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

Common Mode Chokes / Filters WE-SI 48uH 8.1A DCR=25mOhms

744151
Wurth Elektronik
1: S/11.37
89In Stock

Mfr. Part #
744151

Mouser Part #
710-744151

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 48uH 8.1A DCR=25mOhms

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Datasheet

89In Stock

S/11.37

S/9.89

S/8.60

S/7.47

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

Common Mode Chokes / Filters WE-SI 172uH 6.5A DCR=55mOhms

744154
Wurth Elektronik
1: S/34.60
77In Stock

Mfr. Part #
744154

Mouser Part #
710-744154

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 172uH 6.5A DCR=55mOhms

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Datasheet

77In Stock

S/34.60

S/30.60

S/25.96

S/23.04

View

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

Common Mode Chokes / Filters WE-SI 380uH 6.2A DCR=70mOhms

744156
Wurth Elektronik
1: S/33.16
47In Stock

Mfr. Part #
744156

Mouser Part #
710-744156

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 380uH 6.2A DCR=70mOhms

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Datasheet

47In Stock

S/33.16

S/31.72

S/29.66

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

Common Mode Chokes / Filters WE-SI 1.619mH 1.8A DCR=480mOhms

7441110
Wurth Elektronik
1: S/14.25
60Expected 7/31/2026

Mfr. Part #
7441110

Mouser Part #
710-7441110

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 1.619mH 1.8A DCR=480mOhms

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Datasheet

60Expected 7/31/2026

S/14.25

S/12.49

S/11.37

S/10.74

S/10.08

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

Common Mode Chokes / Filters WE-SI Leaded Toroidal Storage Choke 34 uH IR = 5.2A Isat = 1.8A RDC = 0.038 OhmS

744131
Wurth Elektronik
1: S/14.52
Non-Stocked Lead-Time 30 Weeks

Mfr. Part #
744131

Mouser Part #
710-744131

Wurth Elektronik

Common Mode Chokes / Filters WE-SI Leaded Toroidal Storage Choke 34 uH IR = 5.2A Isat = 1.8A RDC = 0.038 OhmS

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Datasheet

Non-Stocked Lead-Time 30 Weeks

S/14.52

S/13.47

S/12.49

S/11.29

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

Common Mode Chokes / Filters WE-SI 346uH 3.8A DCR=140mOhms

744136
Wurth Elektronik
1: S/18.45
Non-Stocked Lead-Time 51 Weeks

Mfr. Part #
744136

Mouser Part #
710-744136

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 346uH 3.8A DCR=140mOhms

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Datasheet

Non-Stocked Lead-Time 51 Weeks

S/18.45

S/17.36

S/17.28

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

Common Mode Chokes / Filters WE-SI 1.124mH 3.4A DCR=280mOhms

744139
Wurth Elektronik
1: S/36.47
Non-Stocked Lead-Time 51 Weeks

Mfr. Part #
744139

Mouser Part #
710-744139

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 1.124mH 3.4A DCR=280mOhms

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Datasheet

Non-Stocked Lead-Time 51 Weeks

S/36.47

S/34.88

S/31.37

S/30.40

S/29.12

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

Common Mode Chokes / Filters WE-SI 56uH 17A DCR=8.5mOhms

S14100036
Wurth Elektronik
5,000: S/33.94
Non-Stocked

Mfr. Part #
S14100036

Mouser Part #
710-S14100036

Wurth Elektronik

Common Mode Chokes / Filters WE-SI 56uH 17A DCR=8.5mOhms

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Non-Stocked

S/33.94

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

WE-SI Leaded Toroidal Storage Chokes

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