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 WE-LAN 1KBsT nonPoE 350uH 2Port 1500Vrms

749020022A
Wurth Elektronik
1: $17.11
351In Stock

Mfr. Part No.
749020022A

Mouser Part No
710-749020022A

Wurth Elektronik

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

Learn More

Datasheet

351In Stock

Cut Tape

$17.11

$14.14

$12.19

Reel

$11.39

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

749014012
Wurth Elektronik
1: $12.26
663In Stock

Mfr. Part No.
749014012

Mouser Part No
710-749014012

Wurth Elektronik

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

Learn More

Datasheet

663In Stock

Cut Tape

$12.26

$11.83

$11.18

$10.51

Reel

$9.85

$9.54

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: $5.30
2,674In Stock

Mfr. Part No.
7490100111

Mouser Part No
710-7490100111

Wurth Elektronik

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

Learn More

Datasheet

2,674In Stock

Cut Tape

$5.30

$5.21

$4.84

$4.47

Reel

$4.09

View

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-LAN 10/100BaseT nonPoE 350uH 4500Vrm

7490140123B
Wurth Elektronik
1: $11.96
764In Stock

Mfr. Part No.
7490140123B

Mouser Part No
710-7490140123B

Wurth Elektronik

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

Learn More

Datasheet

764In Stock

Cut Tape

$11.96

$9.97

$9.06

Reel

$8.23

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 MID-PLC ST7540 1 mH -

750510682
Wurth Elektronik
1: $4.23
1,119In Stock

Mfr. Part No.
750510682

Mouser Part No
710-750510682

Wurth Elektronik

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

Learn More

Datasheet

1,119In Stock

Cut Tape

$4.23

$3.94

$3.66

Reel

$3.38

$3.11

$2.83

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-DSL VDSL 700uH +-10%

750510348
Wurth Elektronik
1: $4.76
92In Stock

Mfr. Part No.
750510348

Mouser Part No
710-750510348

Wurth Elektronik

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

Learn More

Datasheet

92In Stock

Cut Tape

$4.76

$4.70

$4.41

$3.97

Reel

$3.97

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-STST DP83TD510E 4532 350uH 1 Ch Sgl Pair Ether

7490100111A
Wurth Elektronik
1: $3.98
8,389In Stock
5,400Expected 2026/07/24

Mfr. Part No.
7490100111A

Mouser Part No
710-7490100111A

Wurth Elektronik

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

Learn More

Datasheet

8,389In Stock

5,400Expected 2026/07/24

Cut Tape

$3.98

$3.70

$3.28

$2.86

Reel

$2.67

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 10/100 Base-T SMD 1 Port Transfrmr

749013011A
Wurth Elektronik / Midcom
1: $3.92
7,029In Stock

Mfr. Part No.
749013011A

Mouser Part No
710-749013011A

Wurth Elektronik / Midcom

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

Learn More

Datasheet

7,029In Stock

Cut Tape

$3.92

$3.64

$3.34

$3.11

Reel

$2.44

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 SMT Transfrmr 1000BT 1 Port

749020111A
Wurth Elektronik
1: $3.95
4,634In Stock
4,500Expected 2026/09/18

Mfr. Part No.
749020111A

Mouser Part No
710-749020111A

Wurth Elektronik

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

Learn More

Datasheet

4,634In Stock

4,500Expected 2026/09/18

Cut Tape

$3.95

$3.72

$3.51

$3.37

Reel

$3.24

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

LAN Transformers

LAN

SMD/SMT

350 uH

1500 Vrms

0 C

+ 70 C

Single

LAN

16.5 mm

9.7 mm

2.35 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: $6.97
7,126In Stock
1,160Expected 2026/07/24

Mfr. Part No.
7490220122

Mouser Part No
710-7490220122

Wurth Elektronik

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

Learn More

Datasheet

7,126In Stock

1,160Expected 2026/07/24

Cut Tape

$6.97

$6.73

$6.33

$5.95

Reel

$5.58

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 10/100/1000 Base-T SMT 24P pitch 1.27mm 1.5KVrms isolation. PoE 350mA

749023113C
Wurth Elektronik
1: $8.61
12,558In Stock

Mfr. Part No.
749023113C

Mouser Part No
710-749023113C

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT 24P pitch 1.27mm 1.5KVrms isolation. PoE 350mA

Learn More

Datasheet

12,558In Stock

Cut Tape

$8.61

$7.94

$7.84

$7.19

View

Reel

$7.08

MouseReel Available

Min.: 1
Mult.: 1

: 1,200

LAN Transformers

LAN Transformer

SMD/SMT

350 uH

1.5 kV

- 40 C

+ 85 C

16.5 mm

9.6 mm

2.4 mm

WE-LAN

Reel, Cut Tape, MouseReel

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

749024012
Wurth Elektronik
1: $21.84
1,593In Stock

Mfr. Part No.
749024012

Mouser Part No
710-749024012

Wurth Elektronik

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

Learn More

Datasheet

1,593In Stock

Cut Tape

$21.84

$21.07

$19.90

Reel

$18.74

$17.56

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 DP83822 SMT Transfrmr 100BT 1 Port ETR

749013011
Wurth Elektronik
1: $2.45
2,134In Stock
1,725Expected 2026/08/13

Mfr. Part No.
749013011

Mouser Part No
710-749013011

Wurth Elektronik

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

Learn More

Datasheet

2,134In Stock

1,725Expected 2026/08/13

Cut Tape

$2.45

$2.40

Reel

$2.02

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 2.5G / 5GB Base-T 1Port ETR

749080010
Wurth Elektronik
1: $12.33
190In Stock
400Expected 2026/07/24

Mfr. Part No.
749080010

Mouser Part No
710-749080010

Wurth Elektronik

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

Learn More

Datasheet

190In Stock

400Expected 2026/07/24

Cut Tape

$12.33

$11.32

$10.20

$9.26

Reel

$9.26

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-LAN SMT Transfrmr 100BT 1 Port

7490100110A
Wurth Elektronik
1: $3.76
6,999In Stock

Mfr. Part No.
7490100110A

Mouser Part No
710-7490100110A

Wurth Elektronik

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

Learn More

Datasheet

6,999In Stock

Cut Tape

$3.76

$3.47

$3.22

$2.98

Reel

$2.15

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 10/100 Base-TX SMT Transformer 1 Port

7490100111B
Wurth Elektronik
1: $3.92
1,730In Stock

Mfr. Part No.
7490100111B

Mouser Part No
710-7490100111B

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10/100 Base-TX SMT Transformer 1 Port

Learn More

Datasheet

1,730In Stock

Cut Tape

$3.92

$3.55

$3.31

$3.06

Reel

$2.20

MouseReel Available

Min.: 1
Mult.: 1

: 650

LAN Transformers

LAN

SMD/SMT

350 uH

1.5 kVAC

WE-LAN

Reel, Cut Tape, MouseReel

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

749010012A
Wurth Elektronik
1: $3.92
838In Stock

Mfr. Part No.
749010012A

Mouser Part No
710-749010012A

Wurth Elektronik

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

Learn More

Datasheet

838In Stock

Cut Tape

$3.92

$3.55

$3.31

$3.06

Reel

$2.20

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: $3.86
983In Stock

Mfr. Part No.
7490100161A

Mouser Part No
710-7490100161A

Wurth Elektronik / Midcom

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

Learn More

Datasheet

983In Stock

Cut Tape

$3.86

$3.58

$3.26

$2.95

Reel

$2.67

$2.44

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: $5.12
1,403In Stock
1,300Expected 2026/07/31

Mfr. Part No.
7490120110

Mouser Part No
710-7490120110

Wurth Elektronik / Midcom

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

Learn More

Datasheet

Product Comments

1,403In Stock

1,300Expected 2026/07/31

Cut Tape

$5.12

$4.75

$4.31

$3.91

Reel

$3.56

$3.23

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 1Port SMD Trnsfmr

749014010
Wurth Elektronik
1: $7.79
945In Stock

Mfr. Part No.
749014010

Mouser Part No
710-749014010

Wurth Elektronik

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

Learn More

Datasheet

945In Stock

Cut Tape

$7.79

$7.52

$7.11

$6.68

Reel

$6.26

$6.05

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: $16.71
176In Stock

Mfr. Part No.
7490140112

Mouser Part No
710-7490140112

Wurth Elektronik

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

Learn More

Datasheet

176In Stock

Cut Tape

$16.71

$16.11

$15.22

$14.33

Reel

$12.90

$11.68

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: $5.97
2,158In Stock

Mfr. Part No.
7490140117C

Mouser Part No
710-7490140117C

Wurth Elektronik

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

Learn More

Datasheet

2,158In Stock

Cut Tape

$5.97

$4.93

$4.14

$3.98

Reel

$3.98

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: $9.16
816In Stock

Mfr. Part No.
7490140122B

Mouser Part No
710-7490140122B

Wurth Elektronik

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

Learn More

Datasheet

816In Stock

Cut Tape

$9.16

$7.63

$6.94

Reel

$6.32

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: $6.47
454In Stock
600Expected 2026/12/04

Mfr. Part No.
7490140141

Mouser Part No
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

454In Stock

600Expected 2026/12/04

Cut Tape

$6.47

$6.23

$5.88

$5.54

Reel

$5.19

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: $6.91
4,041In Stock

Mfr. Part No.
749020010A

Mouser Part No
710-749020010A

Wurth Elektronik

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

Learn More

Datasheet

4,041In Stock

Cut Tape

$6.91

$6.33

$5.85

$5.49

Reel

$5.26

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

Customer Service Office

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