Transformers

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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 SMT Transfrmr 100BT 1 Port

7490100110A
Wurth Elektronik
1: $5.10
6,963In Stock
5,400On Order

Mfr. Part No.
7490100110A

Mouser Part No
710-7490100110A

Wurth Elektronik

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

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Datasheet

6,963In Stock

5,400On Order

Cut Tape

$5.10

$4.71

$4.38

$4.05

Reel

$2.77

MouseReel Available

Min.: 1
Mult.: 1

: 600

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

7490100111A
Wurth Elektronik
1: $5.43
6,252In Stock
22,800On Order

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

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Datasheet

6,252In Stock

22,800On Order

Cut Tape

$5.43

$5.03

$4.46

$3.89

Reel

$3.47

MouseReel Available

Min.: 1
Mult.: 1

: 600

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

7490100111B
Wurth Elektronik
1: $5.33
1,724In 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

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Datasheet

1,724In Stock

Cut Tape

$5.33

$4.83

$4.50

$4.16

Reel

$2.84

MouseReel Available

Min.: 1
Mult.: 1

: 650

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

7490100161A
Wurth Elektronik / Midcom
1: $4.81
958In 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

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Datasheet

958In Stock

Cut Tape

$4.81

$4.34

$4.18

$4.04

Reel

$3.60

View

MouseReel Available

Min.: 1
Mult.: 1

: 600

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

7490120110
Wurth Elektronik / Midcom
1: $6.96
2,361In Stock

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

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Datasheet

2,361In Stock

Cut Tape

$6.96

$6.45

$5.86

$5.32

Reel

$4.60

$4.18

MouseReel Available

Min.: 1
Mult.: 1

: 650

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

749014010
Wurth Elektronik
1: $10.59
915In Stock

Mfr. Part No.
749014010

Mouser Part No
710-749014010

Wurth Elektronik

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

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Datasheet

915In Stock

Cut Tape

$10.59

$10.23

$9.66

$9.08

Reel

$8.51

$8.23

MouseReel Available

Min.: 1
Mult.: 1

: 300

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

7490140117C
Wurth Elektronik
1: $8.12
1,384In Stock

Mfr. Part No.
7490140117C

Mouser Part No
710-7490140117C

Wurth Elektronik

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

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Datasheet

1,384In Stock

Cut Tape

$8.12

$6.70

$5.79

Reel

$5.48

MouseReel Available

Min.: 1
Mult.: 1

: 750

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

749014012
Wurth Elektronik
1: $16.65
363In 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

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Datasheet

363In Stock

Cut Tape

$16.65

$16.08

$15.16

$13.59

Reel

$12.72

$12.29

MouseReel Available

Min.: 1
Mult.: 1

: 250

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

7490140122B
Wurth Elektronik
1: $12.47
765In 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

765In Stock

Cut Tape

$12.47

$10.38

$9.44

$8.58

Reel

$7.77

MouseReel Available

Min.: 1
Mult.: 1

: 300

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

7490140141
Wurth Elektronik
1: $8.79
408In Stock
600Expected 11/12/2026

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

408In Stock

600Expected 11/12/2026

Cut Tape

$8.79

$8.47

$8.00

$7.53

Reel

$6.73

MouseReel Available

Min.: 1
Mult.: 1

: 300

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

749020010A
Wurth Elektronik
1: $9.41
3,765In 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

3,765In Stock

Cut Tape

$9.41

$8.60

$7.96

$7.47

Reel

$7.09

$6.79

MouseReel Available

Min.: 1
Mult.: 1

: 400

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

749020011A
Wurth Elektronik
1: $9.41
511In Stock
4,800On Order

Mfr. Part No.
749020011A

Mouser Part No
710-749020011A

Wurth Elektronik

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

Learn More

Datasheet

511In Stock

4,800On Order

Cut Tape

$9.41

$8.60

$7.96

$7.47

Reel

$7.09

$6.79

MouseReel Available

Min.: 1
Mult.: 1

: 400

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

749020100A
Wurth Elektronik
1: $8.92
4,288In Stock
12,000On Order

Mfr. Part No.
749020100A

Mouser Part No
710-749020100A

Wurth Elektronik

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

Learn More

Datasheet

4,288In Stock

12,000On Order

Cut Tape

$8.92

$7.71

$6.81

$6.34

$5.66

Reel

$5.17

MouseReel Available

Min.: 1
Mult.: 1

: 1,200

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

749020111A
Wurth Elektronik
1: $5.39
2,443In Stock
10,500On Order

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

2,443In Stock

10,500On Order

Cut Tape

$5.39

$5.06

$4.77

$4.65

Reel

$4.41

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Audio Transformers / Signal Transformers WE-LAN SMT TRANSFMR 1000BT 1Port PoE+ETR

749022011
Wurth Elektronik
1: $8.79
648In Stock
1,500Expected 18/9/2026

Mfr. Part No.
749022011

Mouser Part No
710-749022011

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN SMT TRANSFMR 1000BT 1Port PoE+ETR

Learn More

Datasheet

648In Stock

1,500Expected 18/9/2026

Cut Tape

$8.79

$8.47

$8.00

$7.11

Reel

$6.75

MouseReel Available

Min.: 1
Mult.: 1

: 375

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

7490220120
Wurth Elektronik
1: $8.08
2,048In Stock
1,600Expected 2/10/2026

Mfr. Part No.
7490220120

Mouser Part No
710-7490220120

Wurth Elektronik

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

Learn More

Datasheet

2,048In Stock

1,600Expected 2/10/2026

Cut Tape

$8.08

$7.79

$7.32

$6.90

Reel

$6.19

MouseReel Available

Min.: 1
Mult.: 1

: 400

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

7490220121
Wurth Elektronik / Midcom
1: $8.80
865In Stock
1,280On Order

Mfr. Part No.
7490220121

Mouser Part No
710-7490220121

Wurth Elektronik / Midcom

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

Learn More

Datasheet

865In Stock

1,280On Order

Cut Tape

$8.80

$8.49

$7.97

$7.49

Reel

$6.68

MouseReel Available

Min.: 1
Mult.: 1

: 320

Audio Transformers / Signal Transformers WE-LAN SMD Transfrmr 10/100/1000Base-T

7490220123
Wurth Elektronik
1: $8.80
1,787In Stock
1,740Expected 2/10/2026

Mfr. Part No.
7490220123

Mouser Part No
710-7490220123

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN SMD Transfrmr 10/100/1000Base-T

Learn More

Datasheet

1,787In Stock

1,740Expected 2/10/2026

Cut Tape

$8.80

$8.49

$7.97

$7.49

Reel

$6.68

MouseReel Available

Min.: 1
Mult.: 1

: 290

Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT Transformer 1 Port 40pin pitch 1.27mm

7490240140
Wurth Elektronik
1: $16.25
218In Stock

Mfr. Part No.
7490240140

Mouser Part No
710-7490240140

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT Transformer 1 Port 40pin pitch 1.27mm

Learn More

Datasheet

218In Stock

Cut Tape

$16.25

$13.55

$12.32

$11.19

Reel

$10.57

MouseReel Available

Min.: 1
Mult.: 1

: 200

Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port 4PPoE Trnsfmr

749052050
Wurth Elektronik
1: $21.37
902In Stock
870Expected 6/11/2026

Mfr. Part No.
749052050

Mouser Part No
710-749052050

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port 4PPoE Trnsfmr

Learn More

Datasheet

902In Stock

870Expected 6/11/2026

Cut Tape

$21.37

$17.86

$15.46

$14.04

Reel

$13.33

MouseReel Available

Min.: 1
Mult.: 1

: 290

Audio Transformers / Signal Transformers WE-LAN 2.5G/5G Base-T SMT 1 Port 120uH OCL a. 27mA DC Bias ETR from -40C to +85C

749082010
Wurth Elektronik
1: $20.88
865In Stock

Mfr. Part No.
749082010

Mouser Part No
710-749082010

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 2.5G/5G Base-T SMT 1 Port 120uH OCL a. 27mA DC Bias ETR from -40C to +85C

Learn More

Datasheet

865In Stock

Cut Tape

$20.88

$19.16

$17.29

$15.69

Reel

$13.63

MouseReel Available

Min.: 1
Mult.: 1

: 290

Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter

749196121
Wurth Elektronik
1: $8.45
985In Stock

Mfr. Part No.
749196121

Mouser Part No
710-749196121

Wurth Elektronik

Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter

Datasheet

985In Stock

Cut Tape

$8.45

$7.59

$6.75

$5.90

Reel

$5.07

Min.: 1
Mult.: 1

: 500

Power Transformers - Board Mount WE-FLEX W/Air Gap 9.3uH 1.09A

749196331
Wurth Elektronik
1: $10.16
280In Stock

Mfr. Part No.
749196331

Mouser Part No
710-749196331

Wurth Elektronik

Power Transformers - Board Mount WE-FLEX W/Air Gap 9.3uH 1.09A

Learn More

Datasheet

280In Stock

Cut Tape

$10.16

$9.47

Reel

$8.98

MouseReel Available

Min.: 1
Mult.: 1

: 300

500 VA

SMD/SMT

Power Transformers - Board Mount WE-FLEX W/Air Gap 3.4uH 4.18A

749196540
Wurth Elektronik
1: $12.92
326In Stock

Mfr. Part No.
749196540

Mouser Part No
710-749196540

Wurth Elektronik

Power Transformers - Board Mount WE-FLEX W/Air Gap 3.4uH 4.18A

Learn More

Datasheet

326In Stock

Cut Tape

$12.92

$9.81

$8.77

Reel

$7.14

Min.: 1
Mult.: 1

: 120

500 VA

SMD/SMT

Power Transformers - Board Mount WE-FB LT3750 10 uH 36 W

750032050
Wurth Elektronik
1: $16.02
313In Stock

Mfr. Part No.
750032050

Mouser Part No
710-750032050

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3750 10 uH 36 W

Learn More

Datasheet

313In Stock

Cut Tape

$16.02

$14.78

$13.56

$12.32

Reel

$12.32

View

MouseReel Available

Min.: 1
Mult.: 1

: 200

36 W

3 V to 24 V

300 V

SMD/SMT

Transformers

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40 mW
100 mW
150 mW
300 mW
500 mW
600 mW
700 mW
800 mW
900 mW
1 W
1.1 W
1.2 W
1.3 W
1.4 W
1.5 W
1.6 W
1.7 W
1.8 W
1.9 W
2 W

2 V to 5.5 V
2.5 V to 3.5 V
3 V to 24 V
3 V to 3.6 V
3 V to 5.2 V
3 V to 6 V
3.3 V
4 V to 8 V
4.5 V to 5.5 V
5 V
5 V to 32 V
6 V to 12.6 V
7 V to 26 V
8 V to 15 V
8 V to 24 V
8 V to 28 V
8 V to 32 V
8 V to 40 V
8 V to 70 V
9 V to 15 V

- 200 V, 200 V
- 150 V, 150 V
- 17.5 V, 17.5 V
- 15 V, - 7.5 V, 7.5 V, 15 V
- 15 V, 15 V
- 12 V, 12 V
- 12 V, 12 V, 24 V
- 12 V, 5 V, 12 V
- 10 V, - 5 V, 5 V, 10 V
- 7 V, - 5 V, 5 V, 7 V
- 7 V, 7 V
- 5 V, - 5 V, 12 V, 12 V
- 5 V, 5 V
- 5 V, 5 V, 15 V
- 5 V, 5 V, 24 V
- 5 V, 7 V
1.8 V
3.3 V
3.3 V, 12 V
3.3 V, 24 V