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WE-FB Series Transformers

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Series = WE-FB

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Part #

Power Transformers WE-FB LT3748 8 uH 45 W

750311591
Wurth Elektronik
1: $19.96
231In Stock

Mfr. Part No.
750311591

Mouser Part No
710-750311591

Wurth Elektronik

Power Transformers WE-FB LT3748 8 uH 45 W

Learn More

Datasheet

231In Stock

Cut Tape

$19.96

$18.70

$17.89

Reel

$16.26

$14.64

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

45 W

20 V to 48 V

15 V

SMD/SMT

Power Transformers WE-FB LT3575 9 uH 13.2 W

750311625
Wurth Elektronik
1: $16.29
321In Stock

Mfr. Part No.
750311625

Mouser Part No
710-750311625

Wurth Elektronik

Power Transformers WE-FB LT3575 9 uH 13.2 W

Learn More

Datasheet

321In Stock

Cut Tape

$16.29

$15.26

$14.60

$13.27

Reel

$11.94

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

13.2 W

10 V to 40 V

3.3 V

SMD/SMT

Power Transformers WE-FB LT3748 400 uH 45 W

750311771
Wurth Elektronik
1: $19.96
1,192In Stock

Mfr. Part No.
750311771

Mouser Part No
710-750311771

Wurth Elektronik

Power Transformers WE-FB LT3748 400 uH 45 W

Learn More

Datasheet

1,192In Stock

Cut Tape

$19.96

$18.70

$17.89

Reel

$16.26

$14.64

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

45 W

157 V to 629 VAC

15 V

SMD/SMT

Power Transformers WE-FB LT3748 9.07 uH 15 W

750311564
Wurth Elektronik
1: $13.44
1,757In Stock
800Expected 23/3/2026

Mfr. Part No.
750311564

Mouser Part No
710-750311564

Wurth Elektronik

Power Transformers WE-FB LT3748 9.07 uH 15 W

Learn More

Datasheet

1,757In Stock

800Expected 23/3/2026

Cut Tape

$13.44

$12.59

$12.04

$10.95

Reel

$9.86

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

15 W

10 V to 40 V

5 V

SMD/SMT

Power Transformers WE-FB LT3573 30uH 5 W

750370040
Wurth Elektronik
1: $9.77
386In Stock

Mfr. Part No.
750370040

Mouser Part No
710-750370040

Wurth Elektronik

Power Transformers WE-FB LT3573 30uH 5 W

Learn More

Datasheet

386In Stock

Cut Tape

$9.77

$9.16

$8.76

$7.96

Reel

$7.16

MouseReel Available

Min.: 1
Mult.: 1

Reel: 300

5 W

18 V to 30 V

5 V

SMD/SMT

Power Transformers WE-FB LT3750 10 uH 36 W

750032050
Wurth Elektronik
1: $7.14
270In Stock

Mfr. Part No.
750032050

Mouser Part No
710-750032050

Wurth Elektronik

Power Transformers WE-FB LT3750 10 uH 36 W

Learn More

Datasheet

270In Stock

Cut Tape

$7.14

$7.05

$6.60

$5.95

Reel

$5.95

$5.28

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

36 W

3 V to 24 V

300 V

SMD/SMT

Power Transformers WE-FB LT3751 FLYBK TRANSFORMER EDF20 10 uH

750032051
Wurth Elektronik
1: $15.07
375In Stock

Mfr. Part No.
750032051

Mouser Part No
710-750032051

Wurth Elektronik

Power Transformers WE-FB LT3751 FLYBK TRANSFORMER EDF20 10 uH

Learn More

Datasheet

375In Stock

Cut Tape

$15.07

$14.12

$13.50

Reel

$12.27

$11.05

MouseReel Available

Min.: 1
Mult.: 1

Reel: 125

SMD/SMT

Power Transformers WE-FB LT3751 2.5 uH 127.5 W

750310355
Wurth Elektronik
1: $17.93
35In Stock

Mfr. Part No.
750310355

Mouser Part No
710-750310355

Wurth Elektronik

Power Transformers WE-FB LT3751 2.5 uH 127.5 W

Learn More

Datasheet

35In Stock

$17.93

$16.79

$16.05

$14.60

$13.14

Min.: 1
Mult.: 1

127.5 W

24 V

75 V

Through Hole

Power Transformers WE-FB LT3748 4.5 uH 36 W

750310617
Wurth Elektronik
1: $16.29
137In Stock

Mfr. Part No.
750310617

Mouser Part No
710-750310617

Wurth Elektronik

Power Transformers WE-FB LT3748 4.5 uH 36 W

Learn More

Datasheet

137In Stock

Cut Tape

$16.29

$15.26

$14.60

Reel

$13.27

$11.94

MouseReel Available

Min.: 1
Mult.: 1

Reel: 120

36 W

9 V to 36 V

12 V

SMD/SMT

Power Transformers WE-FB LT3748 100 uH 800 mW

750311486
Wurth Elektronik
1: $5.03
212In Stock
200Expected 26/3/2026

Mfr. Part No.
750311486

Mouser Part No
710-750311486

Wurth Elektronik

Power Transformers WE-FB LT3748 100 uH 800 mW

Learn More

Datasheet

212In Stock

200Expected 26/3/2026

Cut Tape

$5.03

$4.66

$4.52

$4.43

Reel

$4.28

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

800 mW

12 V

200 V, - 200 V

SMD/SMT

Power Transformers WE-FB LT3748 8 uH 45.6 W

750311590
Wurth Elektronik
1: $18.33
54In Stock

Mfr. Part No.
750311590

Mouser Part No
710-750311590

Wurth Elektronik

Power Transformers WE-FB LT3748 8 uH 45.6 W

Learn More

Datasheet

54In Stock

Cut Tape

$18.33

$17.17

$16.43

Reel

$14.93

$13.44

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

45.6 W

20 V to 48 V

12 V

SMD/SMT

Power Transformers WE-FB LT3748 8 uH 45.6 W

750311592
Wurth Elektronik
1: $12.77
199In Stock

Mfr. Part No.
750311592

Mouser Part No
710-750311592

Wurth Elektronik

Power Transformers WE-FB LT3748 8 uH 45.6 W

Learn More

Datasheet

199In Stock

Cut Tape

$12.77

$11.52

$11.04

$10.70

Reel

$10.37

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

45.6 W

20 V to 48 V

24 V

SMD/SMT

Power Transformers WE-FB LT3748 80 uH 300 mW

750311692
Wurth Elektronik
1: $8.16
431In Stock

Mfr. Part No.
750311692

Mouser Part No
710-750311692

Wurth Elektronik

Power Transformers WE-FB LT3748 80 uH 300 mW

Learn More

Datasheet

431In Stock

Cut Tape

$8.16

$7.65

$7.31

$6.64

Reel

$5.98

MouseReel Available

Min.: 1
Mult.: 1

Reel: 350

300 mW

8 V to 15 V

150 V, - 150 V

SMD/SMT

Power Transformers WE-FB LT3751 10 uH

750032052
Wurth Elektronik
1: $6.55
35In Stock
1,000Expected 26/2/2026

Mfr. Part No.
750032052

Mouser Part No
710-750032052

Wurth Elektronik

Power Transformers WE-FB LT3751 10 uH

Learn More

Datasheet

35In Stock

1,000Expected 26/2/2026

Cut Tape

$6.55

$5.92

$5.69

$5.50

Reel

$5.27

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 125

SMD/SMT

Power Transformers WE-FB LT3751 5 uH 75 W

750310349
Wurth Elektronik
1: $17.93
76In Stock

Mfr. Part No.
750310349

Mouser Part No
710-750310349

Wurth Elektronik

Power Transformers WE-FB LT3751 5 uH 75 W

Learn More

Datasheet

76In Stock

$17.93

$16.79

$16.05

$14.60

$13.14

Min.: 1
Mult.: 1

75 W

24 V

300 V

Through Hole

Power Transformers WE-FB LT3573 25 uH 10 W

750310471
Wurth Elektronik
1: $10.17
118In Stock

Mfr. Part No.
750310471

Mouser Part No
710-750310471

Wurth Elektronik

Power Transformers WE-FB LT3573 25 uH 10 W

Learn More

Datasheet

118In Stock

Cut Tape

$10.17

$9.54

$9.12

$8.30

Reel

$7.46

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

10 W

9 V to 30 V

5 V

SMD/SMT

Power Transformers WE-FB LT3748 14 uH 40 W

750310988
Wurth Elektronik
1: $19.96
85In Stock

Mfr. Part No.
750310988

Mouser Part No
710-750310988

Wurth Elektronik

Power Transformers WE-FB LT3748 14 uH 40 W

Learn More

Datasheet

85In Stock

Cut Tape

$19.96

$18.70

$17.89

Reel

$16.26

$14.64

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

40 W

12 V

48 V

SMD/SMT

Power Transformers WE-FB LT3575 15 uH 15 W

750311342
Wurth Elektronik
1: $14.68
232In Stock

Mfr. Part No.
750311342

Mouser Part No
710-750311342

Wurth Elektronik

Power Transformers WE-FB LT3575 15 uH 15 W

Learn More

Datasheet

232In Stock

Cut Tape

$14.68

$13.75

$13.15

$11.95

Reel

$10.76

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

15 W

36 V

5 V

SMD/SMT

Power Transformers WE-FB LT3748 50 uH 20 W

750311457
Wurth Elektronik
1: $10.58
265In Stock

Mfr. Part No.
750311457

Mouser Part No
710-750311457

Wurth Elektronik

Power Transformers WE-FB LT3748 50 uH 20 W

Learn More

Datasheet

265In Stock

Cut Tape

$10.58

$9.54

$9.16

$8.87

Reel

$8.33

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

20 W

36 V

5 V

SMD/SMT

Power Transformers WE-FB LT3748 14 uH 30 W

750311607
Wurth Elektronik
1: $11.29
85In Stock
250Expected 12/3/2026

Mfr. Part No.
750311607

Mouser Part No
710-750311607

Wurth Elektronik

Power Transformers WE-FB LT3748 14 uH 30 W

Learn More

Datasheet

85In Stock

250Expected 12/3/2026

Cut Tape

$11.29

$10.36

$10.01

$9.80

Reel

$9.52

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 125

30 W

30 V to 75 V

12 V

SMD/SMT

Power Transformers WE-FB LT3748 9 uH 15 W

750311624
Wurth Elektronik
1: $13.46
54In Stock

Mfr. Part No.
750311624

Mouser Part No
710-750311624

Wurth Elektronik

Power Transformers WE-FB LT3748 9 uH 15 W

Learn More

Datasheet

54In Stock

Cut Tape

$13.46

$12.61

$12.05

$10.97

Reel

$9.87

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

15 W

10 V to 40 V

15 V

SMD/SMT

Power Transformers WE-FB LT3748 100 uH 800 mW

750311681
Wurth Elektronik
1: $5.24
418In Stock

Mfr. Part No.
750311681

Mouser Part No
710-750311681

Wurth Elektronik

Power Transformers WE-FB LT3748 100 uH 800 mW

Learn More

Datasheet

418In Stock

Cut Tape

$5.24

$4.74

$4.56

$4.42

Reel

$4.14

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

800 mW

12 V

200 V, - 200 V

SMD/SMT

Power Transformers WE-FB LT3748 20 uH 60 W

750311783
Wurth Elektronik
1: $12.41
30In Stock
2,100Expected 21/5/2026

Mfr. Part No.
750311783

Mouser Part No
710-750311783

Wurth Elektronik

Power Transformers WE-FB LT3748 20 uH 60 W

Learn More

Datasheet

30In Stock

2,100Expected 21/5/2026

Cut Tape

$12.41

$11.31

$10.90

$10.62

Reel

$10.36

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

60 W

19 V to 70 V

24 V

SMD/SMT

Power Transformers WE-FB LT3748 14 uH 30 W

750311797
Wurth Elektronik
1: $18.35
166In Stock

Mfr. Part No.
750311797

Mouser Part No
710-750311797

Wurth Elektronik

Power Transformers WE-FB LT3748 14 uH 30 W

Learn More

Datasheet

166In Stock

Cut Tape

$18.35

$17.18

$16.43

Reel

$14.94

$13.46

MouseReel Available

Min.: 1
Mult.: 1

Reel: 125

30 W

18 V to 100 V

12 V

SMD/SMT

Power Transformers WE-FB LT3748 37 uH 25 W

750311889
Wurth Elektronik
1: $13.84
91In Stock

Mfr. Part No.
750311889

Mouser Part No
710-750311889

Wurth Elektronik

Power Transformers WE-FB LT3748 37 uH 25 W

Learn More

Datasheet

91In Stock

Cut Tape

$13.84

$12.97

$12.41

Reel

$11.27

$10.15

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

25 W

28 V

250 V

SMD/SMT

WE-FB Series Transformers

Types of Transformers

Customer Service Office

Company

Resources

Support

150 mW
300 mW
800 mW
1 W
2.5 W
3.3 W
3.6 W
4.3 W
5 W
5.6 W
6 W
6.24 W
7.5 W
9 W
9.2 W
9.6 W
9.9 W
10 W
12 W
13.2 W

2 V to 5.5 V
3 V to 24 V
5 V
5 V to 32 V
6 V to 12.6 V
8 V to 15 V
8 V to 24 V
8 V to 70 V
9 V to 16 V
9 V to 30 V
9 V to 36 V
10 V
10 V to 30 V
10 V to 40 V
12 V
12 V to 30 V
15 V
16 V to 24 V
18 V to 100 V
18 V to 30 V

3.3 V
5 V
5 V, - 5 V
5 V, 5 V
12 V
13 V
15 V
15 V, 15 V
15 V, 15 V, 15 V, 15 V
20 V
24 V
28 V
30 V
48 V
50 V to 150 V
75 V
100 V
146 V
150 V
150 V, - 150 V