Common Mode Filter Chokes

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Single Pair Ethernet Products

Würth Elektronik Single Pair Ethernet Products require only one pair of wires, ensuring thinner cable diameters and reduced cost. This compact design also reduces the number of passive components on a PCB. When used with a compact connector, Single Pair Ethernet can save up to 75% PCB space, compared to current Ethernet over RJ45. Würth Elektronik Single Pair Ethernet Products offer isolation in accordance with IEC 62368-1. Typical applications for these products include Ethernet 10/100/1000 Base-T, Ethernet 2.5/5G and 10G Base-T, DC-DC converters, USB 3.1 Type C, USB 3.0, USB 2.0, HDMI, LVDS, high-speed data lines, and much more.

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Part #

Common Mode Chokes / Filters WE-CNSW 1206 310mA 260Ohm 100MHz AECQ2

744232261
Wurth Elektronik
1: $1.31
2,688In Stock

Mfr. Part No.
744232261

Mouser Part No
710-744232261

Wurth Elektronik

Common Mode Chokes / Filters WE-CNSW 1206 310mA 260Ohm 100MHz AECQ2

Learn More

Datasheet

2,688In Stock

Cut Tape

$1.31

$1.25

$1.17

$1.11

View

Reel

$0.88

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

PCB Mount

WE-CNSW

SMD/SMT

260 Ohms

25 %

310 mA

500 mOhms

- 40 C

+ 125 C

1206 (3216 metric)

3.2 mm

1.6 mm

1.9 mm

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Line Filters

SMD Common Mode Line Filter

Common Mode Chokes / Filters WE-CNSW CMC 2Ohms 100uH 150mA AECQ200

744235101
Wurth Elektronik
1: $1.80
568In Stock
1,000Expected 20/02/2026

Mfr. Part No.
744235101

Mouser Part No
710-744235101

Wurth Elektronik

Common Mode Chokes / Filters WE-CNSW CMC 2Ohms 100uH 150mA AECQ200

Learn More

Datasheet

568In Stock

1,000Expected 20/02/2026

Cut Tape

$1.80

$1.72

$1.60

$1.49

$1.43

Reel

$1.20

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

PCB Mount

1 Channel

WE-CNSW

SMD/SMT

100 uH

5 kOhms

- 30 %, + 50 %

150 mA

2 Ohms

- 40 C

+ 125 C

4.55 mm

3.22 mm

2.6 mm

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Chokes

Line Filter

Common Mode Chokes / Filters WE-CNSW 1812 250mA 22uH 100kHz AECQ200

744235220
Wurth Elektronik
1: $1.80
849In Stock
500Expected 20/02/2026

Mfr. Part No.
744235220

Mouser Part No
710-744235220

Wurth Elektronik

Common Mode Chokes / Filters WE-CNSW 1812 250mA 22uH 100kHz AECQ200

Learn More

Datasheet

849In Stock

500Expected 20/02/2026

Cut Tape

$1.80

$1.72

$1.60

$1.49

$1.43

Reel

$1.20

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

PCB Mount

1 Channel

WE-CNSW

SMD/SMT

22 uH

8 kOhms

- 30 %, + 50 %

250 mA

2.65 Ohms

- 40 C

+ 125 C

1812 (4532 metric)

4.5 mm

3.2 mm

2.8 mm

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Chokes

Line Filter

Common Mode Chokes / Filters WE-CNSW 1812 2000mA 0.3uH 100kHz AECQ200

744235900
Wurth Elektronik
1: $1.80
1,818In Stock
1,400Expected 27/02/2026

Mfr. Part No.
744235900

Mouser Part No
710-744235900

Wurth Elektronik

Common Mode Chokes / Filters WE-CNSW 1812 2000mA 0.3uH 100kHz AECQ200

Learn More

Datasheet

1,818In Stock

1,400Expected 27/02/2026

Cut Tape

$1.80

$1.72

$1.60

$1.49

$1.43

Reel

$1.20

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

PCB Mount

1 Channel

WE-CNSW

SMD/SMT

300 nH

90 Ohms

20 %

2 A

50 mOhms

- 40 C

+ 125 C

1812 (4532 metric)

4.5 mm

3.2 mm

2.8 mm

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Chokes

Line Filter

Common Mode Chokes / Filters WE-CNSW 0805 280mA 120Ohm 100MHz AECQ2

744233121
Wurth Elektronik
1: $1.46
8,476On Order

Mfr. Part No.
744233121

Mouser Part No
710-744233121

Wurth Elektronik

Common Mode Chokes / Filters WE-CNSW 0805 280mA 120Ohm 100MHz AECQ2

Learn More

Datasheet

8,476On Order

Cut Tape

$1.46

$1.40

$1.30

$1.23

View

Reel

$0.98

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

PCB Mount

1 Channel

WE-CNSW

SMD/SMT

167 nH

120 Ohms

25 %

280 mA

300 mOhms

- 40 C

+ 105 C

0805 (2012 metric)

2 mm

1.2 mm

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Chokes

Line Filter

Common Mode Chokes / Filters WE-CNSW 0504 600mA 60Ohm 100 MHz AECQ2

7442335600
Wurth Elektronik
1: $1.71
13,974On Order

Mfr. Part No.
7442335600

Mouser Part No
710-7442335600

Wurth Elektronik

Common Mode Chokes / Filters WE-CNSW 0504 600mA 60Ohm 100 MHz AECQ2

Learn More

Datasheet

13,974On Order

Cut Tape

$1.71

$1.59

$1.44

$1.31

Reel

$0.98

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

PCB Mount

WE-CNSW

SMD/SMT

60 Ohms

25 %

600 mA

220 mOhms

- 40 C

+ 125 C

1.2 mm

1 mm

0.9 mm

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Line Filters

High Frequency Line Filter

Common Mode Chokes / Filters WE-CNSW 1812 450mA 11uH 100kHz AECQ200

744235110
Wurth Elektronik
1: $1.80
6,143On Order

Mfr. Part No.
744235110

Mouser Part No
710-744235110

Wurth Elektronik

Common Mode Chokes / Filters WE-CNSW 1812 450mA 11uH 100kHz AECQ200

Learn More

Datasheet

6,143On Order

Cut Tape

$1.80

$1.72

$1.60

$1.49

$1.43

Reel

$1.20

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

PCB Mount

1 Channel

WE-CNSW

SMD/SMT

11 uH

450 mA

800 mOhms

- 40 C

+ 125 C

1812 (4532 metric)

4.5 mm

3.2 mm

2.8 mm

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Line Filters

Common Mode Chokes / Filters WE-CNSW 1210 200mA 100uH AEC-Q200

744234101
Wurth Elektronik
1: $1.03
1,155Expected 20/02/2026
New Product

Mfr. Part No.
744234101

Mouser Part No
710-744234101

New Product

Wurth Elektronik

Common Mode Chokes / Filters WE-CNSW 1210 200mA 100uH AEC-Q200

Learn More

Datasheet

1,155Expected 20/02/2026

Cut Tape

$1.03

$0.918

$0.819

$0.702

$0.648

Reel

$0.594

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,200

PCB Mount

WE-CNSW

SMD/SMT

100 uH

5.5 kOhms

50 %

0.2 A

3 Ohms

- 40 C

+ 85 C

1210 (3225 metric)

3.2 mm

2.5 mm

2.4 mm

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Line Filter

Common Mode Chokes / Filters WE-CNSW 1210 400mA 51uH AEC-Q200

744234510
Wurth Elektronik
1: $1.03
1,150Expected 27/02/2026
New Product

Mfr. Part No.
744234510

Mouser Part No
710-744234510

New Product

Wurth Elektronik

Common Mode Chokes / Filters WE-CNSW 1210 400mA 51uH AEC-Q200

Learn More

Datasheet

1,150Expected 27/02/2026

Cut Tape

$1.03

$0.918

$0.819

$0.702

$0.648

Reel

$0.594

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,200

PCB Mount

WE-CNSW

SMD/SMT

51 uH

2.8 kOhms

50 %

0.4 A

1.1 Ohms

- 40 C

+ 85 C

1210 (3225 metric)

3.2 mm

2.5 mm

2.4 mm

AEC-Q200

Reel, Cut Tape, MouseReel

Common Mode Line Filter

Single Pair Ethernet Products

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27 nH
56 nH
92 nH
111 nH
134 nH
167 nH
170 nH
196 nH
252 nH
300 nH
367 nH
478 nH
1 uH
1.3 uH
2.578 uH
11 uH
22 uH
51 uH
100 uH
250 uH

22 Ohms
45 Ohms
60 Ohms
67 Ohms
90 Ohms
120 Ohms
160 Ohms
180 Ohms
250 Ohms
260 Ohms
370 Ohms
600 Ohms
1 kOhms
2.2 kOhms
2.8 kOhms
3 kOhms
5 kOhms
5.5 kOhms
6 kOhms
8 kOhms

90 mA
150 mA
0.2 A
200 mA
230 mA
250 mA
260 mA
280 mA
300 mA
310 mA
320 mA
330 mA
340 mA
350 mA
370 mA
0.4 A
400 mA
450 mA
500 mA
550 mA

50 mOhms
80 mOhms
100 mOhms
110 mOhms
120 mOhms
145 mOhms
175 mOhms
210 mOhms
220 mOhms
240 mOhms
250 mOhms
270 mOhms
300 mOhms
350 mOhms
400 mOhms
450 mOhms
500 mOhms
800 mOhms
1 Ohms
1.1 Ohms