Audio Transformers / Signal Transformers

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Transformers

Würth Elektronik Transformers feature power transformers for AC/DC, DC/DC, data/signal, battery management systems (BMS), and interfaces. Additional transformer solutions are gate drive and current sense transformers. These Würth power transformers feature several topologies, including flyback, push-pull, isolated buck, forward, and half-bridge. Würth Elektronik transformers are ideal for power electronics, LED lighting, signal applications, white goods, and more.

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Part #

Audio Transformers / Signal Transformers 10/100/1000 Base-T Transformer 1 Port

749024012
Wurth Elektronik
1: $31.45
1,589In Stock

Mfr. Part #
749024012

Mouser Part #
710-749024012

Wurth Elektronik

Audio Transformers / Signal Transformers 10/100/1000 Base-T Transformer 1 Port

Learn More

Datasheet

1,589In Stock

Cut Tape

$31.45

$30.31

$30.25

$28.63

Reel

$24.25

View

MouseReel Available

Min.: 1
Mult.: 1

: 175

LAN Transformers

LAN

SMD/SMT

350 uH

4 kVAC

- 40 C

+ 85 C

28.57 mm

12.7 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 1KBsT nonPoE 350uH 2Port 1500Vrms

749020022A
Wurth Elektronik
1: $24.64
380In Stock

Mfr. Part #
749020022A

Mouser Part #
710-749020022A

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 1KBsT nonPoE 350uH 2Port 1500Vrms

Learn More

Datasheet

380In Stock

Cut Tape

$24.64

$20.35

$17.15

$17.14

Reel

$14.33

MouseReel Available

Min.: 1
Mult.: 1

: 330

LAN Transformers

LAN

SMD/SMT

350 uH

1.5 kV

- 40 C

+ 85 C

27.7 mm

7.5 mm

8.5 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers MID-PLC ST7540 1 mH -

750510682
Wurth Elektronik
1: $5.24
1,120In Stock

Mfr. Part #
750510682

Mouser Part #
710-750510682

Wurth Elektronik

Audio Transformers / Signal Transformers MID-PLC ST7540 1 mH -

Learn More

Datasheet

1,120In Stock

Cut Tape

$5.24

$4.74

$4.55

$4.41

Reel

$4.20

View

MouseReel Available

Min.: 1
Mult.: 1

: 140

Signal Transformers

SMD/SMT

1 mH

1.5 kVAC

- 20 C

+ 80 C

Single

13.97 mm

15.4 mm

13.2 mm

MID-PLC

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN SMD Extended 1 Port 10/100 Base-T

749014012
Wurth Elektronik
1: $17.64
667In Stock

Mfr. Part #
749014012

Mouser Part #
710-749014012

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN SMD Extended 1 Port 10/100 Base-T

Learn More

Datasheet

667In Stock

Cut Tape

$17.64

$17.02

$16.07

$14.53

Reel

$13.61

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

LAN Transformers

LAN

SMD/SMT

500 kHz to 100 MHz

350 uH

4 kVAC

0 C

+ 70 C

Single

10/100/1000 Base-T

24.55 mm x 17 mm x 10.85 mm

24.55 mm

18.25 mm

10.85 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 10/100 Base-T SMT Transformer 1 Port

7490100111
Wurth Elektronik
1: $7.63
2,761In Stock

Mfr. Part #
7490100111

Mouser Part #
710-7490100111

Wurth Elektronik

Audio Transformers / Signal Transformers 10/100 Base-T SMT Transformer 1 Port

Learn More

Datasheet

2,761In Stock

Cut Tape

$7.63

$7.50

$7.49

$6.96

View

Reel

$4.81

MouseReel Available

Min.: 1
Mult.: 1

: 750

LAN Transformers

LAN

SMD/SMT

350 uH

1.5 kVAC

- 25 C

+ 105 C

Dual

10/100 Base-T

12.95 mm

7.11 mm

5.33 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-DSL VDSL 700uH +-10%

750510348
Wurth Elektronik
1: $6.85
94In Stock

Mfr. Part #
750510348

Mouser Part #
710-750510348

Wurth Elektronik

Audio Transformers / Signal Transformers WE-DSL VDSL 700uH +-10%

Learn More

Datasheet

94In Stock

Cut Tape

$6.85

$6.77

$6.35

$5.72

Reel

$5.72

View

MouseReel Available

Min.: 1
Mult.: 1

: 350

VDSL Transformers

VDSL

SMD/SMT

20 kHz to 30 MHz

700 uH

1.875 kVAC

- 40 C

+ 85 C

Dual

XDSL

9.78 mm x 9.14 mm x 10.54 mm

9.78 mm

9.14 mm

10.54 mm

MID-DSLIKN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 2.5G / 5GB Base-T 1Port ETR

749080010
Wurth Elektronik
1: $17.74
290In Stock

Mfr. Part #
749080010

Mouser Part #
710-749080010

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 2.5G / 5GB Base-T 1Port ETR

Learn More

Datasheet

290In Stock

Cut Tape

$17.74

$16.29

$14.69

$13.33

Reel

$13.33

MouseReel Available

Min.: 1
Mult.: 1

: 400

LAN Transformers

LAN

SMD/SMT

200 uH

1.5 kV

- 40 C

+ 85 C

13.97 mm

12 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-STST DP83TD510E 4532 350uH 1 Ch Sgl Pair Ether

7490100111A
Wurth Elektronik
1: $5.73
9,299In Stock
6,000Expected 2026-08-14

Mfr. Part #
7490100111A

Mouser Part #
710-7490100111A

Wurth Elektronik

Audio Transformers / Signal Transformers WE-STST DP83TD510E 4532 350uH 1 Ch Sgl Pair Ether

Learn More

Datasheet

9,299In Stock

6,000Expected 2026-08-14

Cut Tape

$5.73

$5.33

$4.72

$4.12

Reel

$3.86

MouseReel Available

Min.: 1
Mult.: 1

: 600

LAN Transformers

LAN

SMD/SMT

350 uH

1500 Vrms

- 40 C

+ 105 C

Single

LAN

12.7 mm

9.4 mm

6.35 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port ETR

749020011A
Wurth Elektronik
1: $9.95
2,994In Stock

Mfr. Part #
749020011A

Mouser Part #
710-749020011A

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port ETR

Learn More

Datasheet

2,994In Stock

Cut Tape

$9.95

$9.10

$8.42

$7.91

Reel

$7.56

MouseReel Available

Min.: 1
Mult.: 1

: 400

LAN Transformers

LAN

SMD/SMT

350 uH

1500 Vrms

- 40 C

+ 85 C

Single

LAN

17.5 mm

15.24 mm

6.5 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 1000Base-T 350uH 1Port 1500Vrms

749020023A
Wurth Elektronik
1: $8.60
8,779In Stock
8,000Expected 2026-08-28

Mfr. Part #
749020023A

Mouser Part #
710-749020023A

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 1000Base-T 350uH 1Port 1500Vrms

Learn More

Datasheet

8,779In Stock

8,000Expected 2026-08-28

Cut Tape

$8.60

$7.10

$5.96

$5.43

Reel

$4.94

MouseReel Available

Min.: 1
Mult.: 1

: 800

LAN Transformers

LAN

SMD/SMT

350 uH

1.5 kV

- 40 C

+ 85 C

15.1 mm

7.1 mm

4.25 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN Transformer 1000BT 1/2 Port ETR

749020100A
Wurth Elektronik
1: $9.43
9,917In Stock

Mfr. Part #
749020100A

Mouser Part #
710-749020100A

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN Transformer 1000BT 1/2 Port ETR

Learn More

Datasheet

9,917In Stock

Cut Tape

$9.43

$8.16

$7.21

$6.71

$5.99

Reel

$5.76

MouseReel Available

Min.: 1
Mult.: 1

: 1,200

LAN Transformers

LAN

SMD/SMT

350 uH

1500 Vrms

- 40 C

+ 105 C

Single

LAN

12.7 mm

9.5 mm

3 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD

7490220122
Wurth Elektronik
1: $10.04
6,360In Stock
2,610Expected 2026-06-12

Mfr. Part #
7490220122

Mouser Part #
710-7490220122

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD

Learn More

Datasheet

6,360In Stock

2,610Expected 2026-06-12

Cut Tape

$10.04

$9.69

$9.10

$8.57

Reel

$8.04

MouseReel Available

Min.: 1
Mult.: 1

: 290

LAN Transformers

LAN

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kVAC

- 40 C

+ 105 C

Quad

10/100/1000 Base-T

18.29 mm

16 mm

8.8 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 100BT 1 Port

7490100110A
Wurth Elektronik
1: $5.40
8,229In Stock

Mfr. Part #
7490100110A

Mouser Part #
710-7490100110A

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 100BT 1 Port

Learn More

Datasheet

8,229In Stock

Cut Tape

$5.40

$4.98

$4.64

$4.29

Reel

$3.10

MouseReel Available

Min.: 1
Mult.: 1

: 600

LAN Transformers

LAN

SMD/SMT

350 uH

1500 Vrms

0 C

+ 70 C

Single

LAN

12.7 mm

9.4 mm

6.35 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 100BT 1 Port

749010012A
Wurth Elektronik
1: $5.64
981In Stock

Mfr. Part #
749010012A

Mouser Part #
710-749010012A

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 100BT 1 Port

Learn More

Datasheet

981In Stock

Cut Tape

$5.64

$5.11

$4.77

$4.41

Reel

$3.17

MouseReel Available

Min.: 1
Mult.: 1

: 600

LAN Transformers

LAN

SMD/SMT

350 uH

1500 Vrms

0 C

+ 70 C

Single

LAN

12.7 mm

9.1 mm

6.35 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 1Port Trnsfmr 10/100 Base-T SMD

7490100161A
Wurth Elektronik / Midcom
1: $5.56
1,436In Stock

Mfr. Part #
7490100161A

Mouser Part #
710-7490100161A

Wurth Elektronik / Midcom

Audio Transformers / Signal Transformers WE-LAN 1Port Trnsfmr 10/100 Base-T SMD

Learn More

Datasheet

1,436In Stock

Cut Tape

$5.56

$5.16

$4.68

$4.25

Reel

$3.86

$3.51

MouseReel Available

Min.: 1
Mult.: 1

: 600

LAN Transformers

LAN

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kVAC

- 40 C

+ 125 C

Single

10/100 Base-T

12.7 mm

9.4 mm

6.35 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN DP83822 10/100 Base-T 1Port SMD Transfrme

7490120110
Wurth Elektronik / Midcom
1: $7.37
1,793In Stock

Mfr. Part #
7490120110

Mouser Part #
710-7490120110

Wurth Elektronik / Midcom

Audio Transformers / Signal Transformers WE-LAN DP83822 10/100 Base-T 1Port SMD Transfrme

Learn More

Datasheet

Product Comments

1,793In Stock

Cut Tape

$7.37

$6.83

$6.21

$5.63

Reel

$5.13

$4.65

MouseReel Available

Min.: 1
Mult.: 1

: 650

LAN Transformers

LAN

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kVAC

- 40 C

+ 85 C

Single

10/100 Base-T

12.7 mm

9.52 mm

5.6 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN DP83822 SMT Transfrmr 100BT 1 Port ETR

749013011
Wurth Elektronik
1: $3.53
3,685In Stock

Mfr. Part #
749013011

Mouser Part #
710-749013011

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN DP83822 SMT Transfrmr 100BT 1 Port ETR

Learn More

Datasheet

3,685In Stock

Cut Tape

$3.53

$3.44

Reel

$2.82

MouseReel Available

Min.: 1
Mult.: 1

: 750

LAN Transformers

LAN

SMD/SMT

350 uH

1.5 kVAC

- 40 C

+ 85 C

Dual

10/100 Base-T

12.95 mm

7.11 mm

5.33 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 10/100 Base-T SMD 1 Port Transfrmr

749013011A
Wurth Elektronik / Midcom
1: $5.64
4,557In Stock
3,000Expected 2026-05-29

Mfr. Part #
749013011A

Mouser Part #
710-749013011A

Wurth Elektronik / Midcom

Audio Transformers / Signal Transformers WE-LAN 10/100 Base-T SMD 1 Port Transfrmr

Learn More

Datasheet

4,557In Stock

3,000Expected 2026-05-29

Cut Tape

$5.64

$5.24

$4.81

$4.46

Reel

$3.51

MouseReel Available

Min.: 1
Mult.: 1

: 600

LAN Transformers

LAN

SMD/SMT

1 MHz to 1 GHz

350 uH

1.5 kVAC

- 40 C

+ 105 C

Single

10/100 Base-T

12.7 mm

9.4 mm

6.35 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 1Port SMD Trnsfmr

749014010
Wurth Elektronik
1: $11.22
945In Stock

Mfr. Part #
749014010

Mouser Part #
710-749014010

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 1Port SMD Trnsfmr

Learn More

Datasheet

945In Stock

Cut Tape

$11.22

$10.83

$10.22

$9.62

Reel

$9.01

$8.71

MouseReel Available

Min.: 1
Mult.: 1

: 300

LAN Transformers

LAN

SMD/SMT

1 MHz to 100 MHz

350 uH

4.5 kVAC

0 C

+ 70 C

Quad

10/100 Base-T

17.1 mm x 14.75 mm x 8.4 mm

17.1 mm

15.34 mm

8.4 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 10/100 Base T 1Port SMD Trnsfmr

7490140112
Wurth Elektronik
1: $24.06
275In Stock

Mfr. Part #
7490140112

Mouser Part #
710-7490140112

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10/100 Base T 1Port SMD Trnsfmr

Learn More

Datasheet

275In Stock

Cut Tape

$24.06

$23.20

$21.92

$20.62

Reel

$18.56

$16.82

MouseReel Available

Min.: 1
Mult.: 1

: 200

LAN Transformers

LAN

SMD/SMT

350 uH

6 kVAC

- 40 C

+ 85 C

Dual

10/100 Base-T

24.55 mm

18.25 mm

10.85 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 2500Vrm

7490140117C
Wurth Elektronik
1: $8.60
2,226In Stock

Mfr. Part #
7490140117C

Mouser Part #
710-7490140117C

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 2500Vrm

Learn More

Datasheet

2,226In Stock

Cut Tape

$8.60

$7.10

$5.96

$5.73

Reel

$5.73

MouseReel Available

Min.: 1
Mult.: 1

: 750

LAN Transformers

LAN

SMD/SMT

350 uH

2.5 kV

- 40 C

+ 105 C

12.7 mm

8.8 mm

5.7 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 4500Vrm

7490140122B
Wurth Elektronik
1: $13.19
817In Stock

Mfr. Part #
7490140122B

Mouser Part #
710-7490140122B

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 4500Vrm

Learn More

Datasheet

817In Stock

Cut Tape

$13.19

$10.99

$9.99

Reel

$9.09

MouseReel Available

Min.: 1
Mult.: 1

: 300

LAN Transformers

LAN

SMD/SMT

350 uH

4.5 kV

- 40 C

+ 85 C

17.1 mm

14.75 mm

8.4 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 4500Vrm

7490140123B
Wurth Elektronik
1: $17.21
872In Stock

Mfr. Part #
7490140123B

Mouser Part #
710-7490140123B

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 4500Vrm

Learn More

Datasheet

872In Stock

Cut Tape

$17.21

$14.34

$13.05

Reel

$11.85

MouseReel Available

Min.: 1
Mult.: 1

: 300

LAN Transformers

LAN

SMD/SMT

350 uH

4.5 kV

- 40 C

+ 85 C

17.1 mm

14.75 mm

8.4 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 10/100 Base-TX SMT Transformer 1Port 12pin pitch 2.54mm 4KVrms isolation

7490140141
Wurth Elektronik
1: $9.30
507In Stock

Mfr. Part #
7490140141

Mouser Part #
710-7490140141

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10/100 Base-TX SMT Transformer 1Port 12pin pitch 2.54mm 4KVrms isolation

Learn More

Datasheet

507In Stock

Cut Tape

$9.30

$8.97

$8.47

$7.98

Reel

$7.47

MouseReel Available

Min.: 1
Mult.: 1

: 300

LAN Transformers

LAN Transformer

SMD/SMT

350 uH

4 kVAC

- 40 C

+ 85 C

17.1 mm

14.5 mm

8.65 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port

749020010A
Wurth Elektronik
1: $9.95
4,190In Stock

Mfr. Part #
749020010A

Mouser Part #
710-749020010A

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port

Learn More

Datasheet

4,190In Stock

Cut Tape

$9.95

$9.10

$8.42

$7.91

Reel

$7.56

MouseReel Available

Min.: 1
Mult.: 1

: 400

LAN Transformers

LAN

SMD/SMT

350 uH

1500 Vrms

- 40 C

+ 85 C

Single

LAN

17.5 mm

15.24 mm

6.5 mm

WE-LAN

Reel, Cut Tape, MouseReel

Transformers

Mouser Electronics®

Company

Resources

Support

4.39 mm
7.87 mm
9.78 mm
12.7 mm
12.95 mm
13.97 mm
15.1 mm
15.8 mm
16.5 mm
17.1 mm
17.5 mm
17.6 mm
17.73 mm
17.85 mm
18.01 mm
18.25 mm
18.29 mm
18.3 mm
24.55 mm
27.7 mm

7.1 mm
7.11 mm
7.5 mm
8.38 mm
8.8 mm
9.02 mm
9.1 mm
9.14 mm
9.4 mm
9.5 mm
9.52 mm
9.55 mm
9.6 mm
9.7 mm
12 mm
12.2 mm
12.7 mm
13.5 mm
13.72 mm
13.97 mm

1.98 mm
2.35 mm
2.38 mm
2.4 mm
3 mm
4.25 mm
5.33 mm
5.4 mm
5.6 mm
5.7 mm
6.15 mm
6.35 mm
6.5 mm
6.6 mm
6.73 mm
7.2 mm
7.24 mm
8.4 mm
8.5 mm
8.65 mm