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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Types of Transformers

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Part #

Power Transformers WE-FLEX W/Air Gap 12.0uH 1.73A

749196521
Wurth Elektronik
1: £7.75
206In Stock

Mfr. Part No.
749196521

Mouser Part No
710-749196521

Wurth Elektronik

Power Transformers WE-FLEX W/Air Gap 12.0uH 1.73A

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Datasheet

206In Stock

Cut Tape

£7.75

£7.70

£7.69

£7.29

Reel

£6.21

£5.67

Min.: 1
Mult.: 1

Reel: 120

500 VA

SMD/SMT

Power Transformers WE-UNIT Offline 175uH .85A 26Ohm

749118205
Wurth Elektronik
1: £5.76
127In Stock

Mfr. Part No.
749118205

Mouser Part No
710-749118205

Wurth Elektronik

Power Transformers WE-UNIT Offline 175uH .85A 26Ohm

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Datasheet

127In Stock

£5.76

£5.07

£5.06

£4.81

View

Min.: 1
Mult.: 1

9 W

85 VAC to 265 VAC

5 V

Through Hole

Power Transformers WE-FB LT3573 25 uH 9.6 W

750310562
Wurth Elektronik
1: £5.50
272In Stock

Mfr. Part No.
750310562

Mouser Part No
710-750310562

Wurth Elektronik

Power Transformers WE-FB LT3573 25 uH 9.6 W

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Datasheet

272In Stock

Cut Tape

£5.50

£5.09

£4.88

£4.73

Reel

£3.73

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

9.6 W

18 V to 30 V

12 V

SMD/SMT

Power Transformers WE-PoE DCR=280mOhms 120uH 1500VDC SMD

749119350
Wurth Elektronik
1: £5.88
376In Stock

Mfr. Part No.
749119350

Mouser Part No
710-749119350

Wurth Elektronik

Power Transformers WE-PoE DCR=280mOhms 120uH 1500VDC SMD

Datasheet

376In Stock

Cut Tape

£5.88

£5.35

£5.34

£4.86

£4.43

Reel

£4.38

MouseReel Available

Min.: 1
Mult.: 1

Reel: 300

Power Transformers WE-FB LT3748 100 uH 12 W

750311424
Wurth Elektronik
1: £6.08
163In Stock

Mfr. Part No.
750311424

Mouser Part No
710-750311424

Wurth Elektronik

Power Transformers WE-FB LT3748 100 uH 12 W

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Datasheet

163In Stock

Cut Tape

£6.08

£5.49

£5.26

£5.10

Reel

£4.74

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

12 W

36 V

12 V

SMD/SMT

Power Transformers WE-FB SMD Flyback Dialog Semi iW1830

750343109
Wurth Elektronik
1: £6.05
1,006In Stock

Mfr. Part No.
750343109

Mouser Part No
710-750343109

Wurth Elektronik

Power Transformers WE-FB SMD Flyback Dialog Semi iW1830

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Datasheet

1,006In Stock

£6.05

£5.75

£5.45

£5.14

View

Min.: 1
Mult.: 1

15 W

90 VAC to 264 VAC

5 V

Through Hole

Power Transformers WE-UOST Univ Offline 1500uH 0.8A 4200mOhm

760875112
Wurth Elektronik
1: £7.40
182In Stock

Mfr. Part No.
760875112

Mouser Part No
710-760875112

Wurth Elektronik

Power Transformers WE-UOST Univ Offline 1500uH 0.8A 4200mOhm

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Datasheet

182In Stock

Cut Tape

£7.40

£7.28

£7.26

£6.76

Reel

£5.60

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

7.5 W

195 VAC to 265 VAC

5 V

SMD/SMT

Power Transformers MID-OLON Flyback Transformer

750341793
Wurth Elektronik
1: £4.13
315In Stock

Mfr. Part No.
750341793

Mouser Part No
710-750341793

Wurth Elektronik

Power Transformers MID-OLON Flyback Transformer

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Datasheet

315In Stock

£4.13

£3.73

£3.58

£3.57

View

Min.: 1
Mult.: 1

9.8 W

85 VAC to 600 VAC

5 V, 12 V

Through Hole

Power Transformers MID-POETI TPS2373 153 uH 70 W

750343164
Wurth Elektronik
1: £8.58
969In Stock

Mfr. Part No.
750343164

Mouser Part No
710-750343164

Wurth Elektronik

Power Transformers MID-POETI TPS2373 153 uH 70 W

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Datasheet

969In Stock

Cut Tape

£8.58

£7.89

£7.88

£7.19

Reel

£5.28

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

70 W

40 V to 57 V

5 V

SMD/SMT

Power Transformers WE-UNIT Offline 280uH .2A .05Ohm

749118105
Wurth Elektronik
1: £5.23
175In Stock

Mfr. Part No.
749118105

Mouser Part No
710-749118105

Wurth Elektronik

Power Transformers WE-UNIT Offline 280uH .2A .05Ohm

Learn More

Datasheet

175In Stock

£5.23

£4.60

£4.59

£4.36

View

Min.: 1
Mult.: 1

3 W

85 VAC to 265 VAC

5 V

Through Hole

Power Transformers WE-FB Flyback 33.8uH 1.0A 10% TOL

750314226
Wurth Elektronik
1: £6.86
247In Stock

Mfr. Part No.
750314226

Mouser Part No
710-750314226

Wurth Elektronik

Power Transformers WE-FB Flyback 33.8uH 1.0A 10% TOL

Learn More

Datasheet

247In Stock

Cut Tape

£6.86

£6.77

£6.36

£5.71

Reel

£5.71

£5.08

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

4.5 W

15 V to 40 V

15 V, 15 V

SMD/SMT

Power Transformers WE-FB LT3748 12 uH 31.2 W

750311608
Wurth Elektronik
1: £6.08
244In Stock

Mfr. Part No.
750311608

Mouser Part No
710-750311608

Wurth Elektronik

Power Transformers WE-FB LT3748 12 uH 31.2 W

Learn More

Datasheet

244In Stock

Cut Tape

£6.08

£5.49

£5.26

£5.10

Reel

£4.89

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 125

31.2 W

30 V to 75 V

24 V

SMD/SMT

Power Transformers MID-FLYLT LT8302 12 uH 6 W

750313460
Wurth Elektronik
1: £2.66
427In Stock

Mfr. Part No.
750313460

Mouser Part No
710-750313460

Wurth Elektronik

Power Transformers MID-FLYLT LT8302 12 uH 6 W

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Datasheet

427In Stock

Cut Tape

£2.66

£2.41

£2.31

£2.24

Reel

£2.09

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

6 W

4 V to 8 V

5 V

SMD/SMT

Power Transformers WE-FB LT3748 15 uH 30 W

750311605
Wurth Elektronik
1: £5.21
125In Stock

Mfr. Part No.
750311605

Mouser Part No
710-750311605

Wurth Elektronik

Power Transformers WE-FB LT3748 15 uH 30 W

Learn More

Datasheet

125In Stock

Cut Tape

£5.21

£5.20

£5.19

Reel

£4.48

£4.47

MouseReel Available

Min.: 1
Mult.: 1

Reel: 125

30 W

30 V to 75 V

5 V

SMD/SMT

Power Transformers MID-FLYLT LT3512 175 uH 2 W

750311559
Wurth Elektronik
1: £3.58
266In Stock

Mfr. Part No.
750311559

Mouser Part No
710-750311559

Wurth Elektronik

Power Transformers MID-FLYLT LT3512 175 uH 2 W

Learn More

Datasheet

266In Stock

Cut Tape

£3.58

£3.24

£3.11

£3.01

Reel

£2.77

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 300

2 W

35 V to 75 V

5 V

SMD/SMT

Power Transformers MID-FLYLT LT8300 300 uH 1.7 W

750312558
Wurth Elektronik
1: £2.73
413In Stock

Mfr. Part No.
750312558

Mouser Part No
710-750312558

Wurth Elektronik

Power Transformers MID-FLYLT LT8300 300 uH 1.7 W

Learn More

Datasheet

413In Stock

Cut Tape

£2.73

£2.48

£2.37

£2.30

Reel

£2.12

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 300

1.7 W

36 V to 72 V

12 V, 12 V

SMD/SMT

Power Transformers WE-PoE EFD25 95W SMT

750319020
Wurth Elektronik
1: £8.01
89In Stock

Mfr. Part No.
750319020

Mouser Part No
710-750319020

Wurth Elektronik

Power Transformers WE-PoE EFD25 95W SMT

Datasheet

89In Stock

Cut Tape

£8.01

£7.91

£7.60

£7.58

Reel

£6.82

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

SMD/SMT

Power Transformers WE-FW MID-PLN Planar 65uH 4.5mOhms

750341134
Wurth Elektronik
1: £8.79
117In Stock

Mfr. Part No.
750341134

Mouser Part No
710-750341134

Wurth Elektronik

Power Transformers WE-FW MID-PLN Planar 65uH 4.5mOhms

Learn More

Datasheet

117In Stock

Cut Tape

£8.79

£7.61

£7.30

£7.07

Reel

£6.94

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 115

SMD/SMT

Power Transformers MID-OLLT LT3798 300 uH 90 W

750811330
Wurth Elektronik
1: £10.15
95In Stock

Mfr. Part No.
750811330

Mouser Part No
710-750811330

Wurth Elektronik

Power Transformers MID-OLLT LT3798 300 uH 90 W

Learn More

Datasheet

95In Stock

£10.15

£10.11

£8.23

£7.87

View

Min.: 1
Mult.: 1

90 W

120 VAC to 375 VAC

18 V

Through Hole

Power Transformers MID-FLYLT LT8300 350 uH 2.1 W

750311838
Wurth Elektronik
1: £4.32
238In Stock

Mfr. Part No.
750311838

Mouser Part No
710-750311838

Wurth Elektronik

Power Transformers MID-FLYLT LT8300 350 uH 2.1 W

Learn More

Datasheet

238In Stock

Cut Tape

£4.32

£4.00

£3.63

£3.30

Reel

£3.00

£2.72

MouseReel Available

Min.: 1
Mult.: 1

Reel: 300

2.1 W

36 V to 72 V

15 V, 15 V

SMD/SMT

Power Transformers WE-PoE Size ER11/5 400uH 98mohm

749119150
Wurth Elektronik
1: £4.98
175In Stock

Mfr. Part No.
749119150

Mouser Part No
710-749119150

Wurth Elektronik

Power Transformers WE-PoE Size ER11/5 400uH 98mohm

Learn More

Datasheet

175In Stock

Cut Tape

£4.98

£4.53

£4.11

£3.74

Reel

£3.40

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

4 W

36 V to 57 V

5 V

SMD/SMT

Power Transformers MID-OLLT LT3798 180 uH 108 W

750811351
Wurth Elektronik
1: £8.15
158In Stock

Mfr. Part No.
750811351

Mouser Part No
710-750811351

Wurth Elektronik

Power Transformers MID-OLLT LT3798 180 uH 108 W

Learn More

Datasheet

158In Stock

£8.15

£6.90

£6.62

£6.33

View

Min.: 1
Mult.: 1

108 W

85 VAC to 265 VAC

36 V

Through Hole

Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T 24pin pitch 1.27mm 1.5k Vrms isolation LP

749020112B
Wurth Elektronik
1: £6.68
723In Stock
1,070Expected 20/02/2026
New Product

Mfr. Part No.
749020112B

Mouser Part No
710-749020112B

New Product

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T 24pin pitch 1.27mm 1.5k Vrms isolation LP

Learn More

Datasheet

723In Stock

1,070Expected 20/02/2026

Cut Tape

£6.68

£6.37

£5.95

£5.70

£5.45

Reel

£4.95

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,320

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

749020111A
Wurth Elektronik
1: £2.97
6,383In Stock

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

6,383In Stock

Cut Tape

£2.97

£2.79

£2.64

£2.53

Reel

£2.44

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

Power Transformers WE-PPTI SN6501 475 uH 5 V SMD/SMT 125C

760390014
Wurth Elektronik
1: £1.52
15,413In Stock
16,800On Order

Mfr. Part No.
760390014

Mouser Part No
710-760390014

Wurth Elektronik

Power Transformers WE-PPTI SN6501 475 uH 5 V SMD/SMT 125C

Learn More

Datasheet

15,413In Stock

16,800On Order

Cut Tape

£1.52

£1.37

£1.24

£1.13

£1.07

Reel

£0.943

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,200

1.8 W

5 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

- 17.5 V, 17.5 V
- 5 V, 7 V
1.8 V
3.3 V
3.3 V, 12 V
3.3 V, 12 V, 5 V
3.3 V, 3.3 V
3.4 V
3.63 V
4 V
4.29 V
5 V
5 V, - 5 V
5 V, 12 V
5 V, 12 V, - 12 V
5 V, 15 V, 15 V
5 V, 3.3 V
5 V, 5 V
5 V, 7.5 V, 10 V
5 V, 9 V