Transformers – Mouser Japan

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WE-FB Flyback Transformers

Würth Elektronik WE-FB Flyback Transformers provide a straightforward design solution, requiring fewer external components and occupying minimal board space. These cost-effective transformers are compatible with multiple Linear Technologies (LT) chipsets, ensuring reliable voltage control over the long term. With an isolation voltage of up to 2.5kV, Würth Elektronik WE-FB Flyback Transformers deliver sustained performance and safety.

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Part #

Power Transformers - Board Mount WE-FB LT3573 50 uH 5 W

750370041
Wurth Elektronik
1: ¥777.3
587In Stock
600Expected 8/20/2026

Mfr. Part #
750370041

Mouser Part #
710-750370041

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3573 50 uH 5 W

Learn More

Datasheet

587In Stock

600Expected 8/20/2026

Cut Tape

¥777.3

¥712.6

¥676

¥637.8

Reel

¥598

¥551.5

MouseReel Available

Min.: 1
Mult.: 1

: 300

5 W

18 V to 30 V

5 V

SMD/SMT

Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 2.9 W

750315830
Wurth Elektronik
1: ¥408.6
1,810In Stock

Mfr. Part #
750315830

Mouser Part #
710-750315830

Wurth Elektronik

Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 2.9 W

Learn More

Datasheet

1,810In Stock

Cut Tape

¥408.6

¥387

¥327.2

Reel

¥299

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 400

2.9 W

36 V to 72 V

48 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3748 6.78 uH 12 W

750311911
Wurth Elektronik
1: ¥1,752.4
283In Stock

Mfr. Part #
750311911

Mouser Part #
710-750311911

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3748 6.78 uH 12 W

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Datasheet

283In Stock

¥1,752.4

¥1,641.1

¥1,569.6

¥1,426.8

¥1,284

Min.: 1
Mult.: 1

12 W

8 V to 24 V

15 V, 15 V, 15 V, 15 V

Through Hole

Power Transformers - Board Mount MID-IBTI LM5017 26 uH 1.6 W

750312924
Wurth Elektronik
1: ¥564.7
1,816In Stock

Mfr. Part #
750312924

Mouser Part #
710-750312924

Wurth Elektronik

Power Transformers - Board Mount MID-IBTI LM5017 26 uH 1.6 W

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Datasheet

1,816In Stock

Cut Tape

¥564.7

¥536.5

¥415.3

Reel

¥415.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 925

1.6 W

36 V to 75 V

5 V, 10 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3575 25 uH 10 W

750311675
Wurth Elektronik
1: ¥1,445.1
417In Stock

Mfr. Part #
750311675

Mouser Part #
710-750311675

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3575 25 uH 10 W

Learn More

Datasheet

417In Stock

Cut Tape

¥1,445.1

¥1,333.8

Reel

¥916.9

MouseReel Available

Min.: 1
Mult.: 1

: 250

10 W

9 V to 30 V

5 V

SMD/SMT

Power Transformers - Board Mount MID-FLYLT LT8302 12 uH 6.6 W

750313439
Wurth Elektronik
1: ¥687.7
944In Stock

Mfr. Part #
750313439

Mouser Part #
710-750313439

Wurth Elektronik

Power Transformers - Board Mount MID-FLYLT LT8302 12 uH 6.6 W

Learn More

Datasheet

944In Stock

Cut Tape

¥687.7

¥636.2

Reel

¥478.4

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 250

6.6 W

8 V to 40 V

3.3 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3748 20 uH 60 W

750311783
Wurth Elektronik
1: ¥2,385.2
1,728In Stock

Mfr. Part #
750311783

Mouser Part #
710-750311783

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3748 20 uH 60 W

Learn More

Datasheet

1,728In Stock

Cut Tape

¥2,385.2

¥2,234

¥2,137.7

Reel

¥1,943.4

¥1,749

MouseReel Available

Min.: 1
Mult.: 1

: 100

60 W

19 V to 70 V

24 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3573 30 uH 5 W

750370047
Wurth Elektronik
1: ¥651.1
1,423In Stock

Mfr. Part #
750370047

Mouser Part #
710-750370047

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3573 30 uH 5 W

Learn More

Datasheet

1,423In Stock

Cut Tape

¥651.1

Reel

¥651.1

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 400

5 W

10 V to 30 V

5 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3573 25 uH 10 W

750310471
Wurth Elektronik
1: ¥1,215.9
317In Stock

Mfr. Part #
750310471

Mouser Part #
710-750310471

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3573 25 uH 10 W

Learn More

Datasheet

317In Stock

Cut Tape

¥1,215.9

¥1,139.4

¥1,089.6

¥991.6

Reel

¥892

MouseReel Available

Min.: 1
Mult.: 1

: 200

10 W

9 V to 30 V

5 V

SMD/SMT

Power Transformers - Board Mount MID-FLYLT LT8300 300 uH 3.6 W

750312365
Wurth Elektronik
1: ¥589.7
1,322In Stock

Mfr. Part #
750312365

Mouser Part #
710-750312365

Wurth Elektronik

Power Transformers - Board Mount MID-FLYLT LT8300 300 uH 3.6 W

Learn More

Datasheet

1,322In Stock

Cut Tape

¥589.7

¥395.3

Reel

¥395.3

MouseReel Available

Min.: 1
Mult.: 1

: 400

3.6 W

30 V to 72 V

12 V

SMD/SMT

Power Transformers - Board Mount MID-FLYADI ADP1031 280 uH 700 mW

750316743
Wurth Elektronik
1: ¥1,566.3
680In Stock
400Expected 8/19/2026

Mfr. Part #
750316743

Mouser Part #
710-750316743

Wurth Elektronik

Power Transformers - Board Mount MID-FLYADI ADP1031 280 uH 700 mW

Learn More

Datasheet

680In Stock

400Expected 8/19/2026

Cut Tape

¥1,566.3

¥1,445.1

Reel

¥993.3

MouseReel Available

Min.: 1
Mult.: 1

: 400

700 mW

18 V to 32 V

24 V

SMD/SMT

Power Transformers - Board Mount MID-FLYMAX MAX17690 84 uH 3 W

750317236
Wurth Elektronik
1: ¥1,239.1
1,147In Stock

Mfr. Part #
750317236

Mouser Part #
710-750317236

Wurth Elektronik

Power Transformers - Board Mount MID-FLYMAX MAX17690 84 uH 3 W

Learn More

Datasheet

1,147In Stock

Cut Tape

¥1,239.1

¥1,142.8

Reel

¥1,142.8

¥785.7

MouseReel Available

Min.: 1
Mult.: 1

: 300

3 W

18 V to 60 V

12 V

SMD/SMT

Power Transformers - Board Mount MID-FLYLT LT8300 300 uH 1.9 W

750311659
Wurth Elektronik
1: ¥549.8
1,400In Stock

Mfr. Part #
750311659

Mouser Part #
710-750311659

Wurth Elektronik

Power Transformers - Board Mount MID-FLYLT LT8300 300 uH 1.9 W

Learn More

Datasheet

1,400In Stock

Cut Tape

¥549.8

¥509.9

Reel

¥392

View

MouseReel Available

Min.: 1
Mult.: 1

: 300

1.9 W

36 V to 72 V

24 V

SMD/SMT

Power Transformers - Board Mount MID-FLYLT LT3798 14 uH 112 W

750312872
Wurth Elektronik
1: ¥4,733.9
919In Stock

Mfr. Part #
750312872

Mouser Part #
710-750312872

Wurth Elektronik

Power Transformers - Board Mount MID-FLYLT LT3798 14 uH 112 W

Learn More

Datasheet

919In Stock

¥4,733.9

¥4,370.1

¥3,004.7

Min.: 1
Mult.: 1

112 W

20 V to 60 V

28 V

Through Hole

Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 3.5 W

750315834
Wurth Elektronik
1: ¥408.6
37In Stock

Mfr. Part #
750315834

Mouser Part #
710-750315834

Wurth Elektronik

Power Transformers - Board Mount MID-FLYLT LT8303 150 uH 3.5 W

Learn More

Datasheet

37In Stock

Cut Tape

¥408.6

¥387

Reel

¥299

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 400

3.5 W

36 V to 72 V

5 V, 5 V

SMD/SMT

Power Transformers - Board Mount MID-IBTI LM20242 66 uH 15.2 W

750342156
Wurth Elektronik
1: ¥842.1
179In Stock

Mfr. Part #
750342156

Mouser Part #
710-750342156

Wurth Elektronik

Power Transformers - Board Mount MID-IBTI LM20242 66 uH 15.2 W

Learn More

Datasheet

179In Stock

Cut Tape

¥842.1

¥779

¥709.2

¥644.5

Reel

¥586.3

¥531.5

MouseReel Available

Min.: 1
Mult.: 1

: 250

15.2 W

15 V to 40 V

12.7 V, 12.7 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3575 7 uH 15 W

750311567
Wurth Elektronik
1: ¥1,606.2
20In Stock
400Expected 8/27/2026

Mfr. Part #
750311567

Mouser Part #
710-750311567

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3575 7 uH 15 W

Learn More

Datasheet

20In Stock

400Expected 8/27/2026

Cut Tape

¥1,606.2

¥1,504.9

¥1,438.4

¥1,308.9

Reel

¥1,177.6

MouseReel Available

Min.: 1
Mult.: 1

: 200

15 W

10 V to 40 V

5 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3748 15 uH 45 W

750311593
Wurth Elektronik
1: ¥2,385.2
140In Stock

Mfr. Part #
750311593

Mouser Part #
710-750311593

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3748 15 uH 45 W

Learn More

Datasheet

140In Stock

Cut Tape

¥2,385.2

¥2,234

Reel

¥2,234

¥1,749

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 100

45 W

30 V to 75 V

5 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3748 3.8 uH 9 W

750311856
Wurth Elektronik
1: ¥837.1
67In Stock
200Expected 12/3/2026

Mfr. Part #
750311856

Mouser Part #
710-750311856

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3748 3.8 uH 9 W

Learn More

Datasheet

67In Stock

200Expected 12/3/2026

Cut Tape

¥837.1

¥777.3

¥717.6

¥657.8

Reel

¥598

¥493.3

MouseReel Available

Min.: 1
Mult.: 1

: 200

9 W

16 V to 24 V

15 V, 15 V, 15 V, 15 V

SMD/SMT

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

750510348
Wurth Elektronik
1: ¥790.6
92In Stock

Mfr. Part #
750510348

Mouser Part #
710-750510348

Wurth Elektronik

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

Learn More

Datasheet

92In Stock

Cut Tape

¥790.6

¥780.7

¥732.5

¥659.4

Reel

¥659.4

View

MouseReel Available

Min.: 1
Mult.: 1

: 350

Power Transformers - Board Mount WE-FB Flyback 5uH 500VAC

750311268
Wurth Elektronik
1: ¥1,199.2
17In Stock

Mfr. Part #
750311268

Mouser Part #
710-750311268

Wurth Elektronik

Power Transformers - Board Mount WE-FB Flyback 5uH 500VAC

Learn More

Datasheet

17In Stock

Cut Tape

¥1,199.2

¥1,106.2

Reel

¥1,106.2

¥760.7

MouseReel Available

Min.: 1
Mult.: 1

: 300

5 W

9 V to 16 V

100 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3748 100 uH 12 W

750311456
Wurth Elektronik
1: ¥1,214.2
75In Stock

Mfr. Part #
750311456

Mouser Part #
710-750311456

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3748 100 uH 12 W

Learn More

Datasheet

75In Stock

Cut Tape

¥1,214.2

¥1,127.8

Reel

¥867

MouseReel Available

Min.: 1
Mult.: 1

: 200

12 W

36 V

12 V

SMD/SMT

Power Transformers - Board Mount MID-FLYLT 9-36V 50-200kHz

750315832
Wurth Elektronik
1: ¥408.6
332In Stock

Mfr. Part #
750315832

Mouser Part #
710-750315832

Wurth Elektronik

Power Transformers - Board Mount MID-FLYLT 9-36V 50-200kHz

Learn More

Datasheet

332In Stock

Cut Tape

¥408.6

¥387

¥327.2

Reel

¥308.9

MouseReel Available

Min.: 1
Mult.: 1

: 400

1.5 W

9 V to 36 V

100 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3748 12 uH 30 W

750311600
Wurth Elektronik
1: ¥1,946.7
114In Stock

Mfr. Part #
750311600

Mouser Part #
710-750311600

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3748 12 uH 30 W

Learn More

Datasheet

114In Stock

Cut Tape

¥1,946.7

¥1,823.8

Reel

¥1,823.8

¥1,426.8

MouseReel Available

Min.: 1
Mult.: 1

: 125

30 W

30 V to 75 V

15 V

SMD/SMT

Power Transformers - Board Mount WE-FB LT3748 15 uH 45.6 W

750311594
Wurth Elektronik
1: ¥2,385.2
112In Stock

Mfr. Part #
750311594

Mouser Part #
710-750311594

Wurth Elektronik

Power Transformers - Board Mount WE-FB LT3748 15 uH 45.6 W

Learn More

Datasheet

112In Stock

Cut Tape

¥2,385.2

¥2,234

Reel

¥2,234

¥1,749

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 100

45.6 W

30 V to 75 V

12 V

SMD/SMT

100 mW
150 mW
300 mW
600 mW
700 mW
800 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
2.1 W
2.3 W
2.5 W

2 V to 5.5 V
2.5 V to 3.5 V
3 V to 24 V
3 V to 6 V
4 V to 8 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
9 V to 16 V
9 V to 18 V
9 V to 30 V
9 V to 36 V

- 200 V, 200 V
- 150 V, 150 V
- 17.5 V, 17.5 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
- 5 V, - 5 V, 12 V, 12 V
- 5 V, 5 V
- 5 V, 5 V, 15 V
- 5 V, 5 V, 24 V
3.3 V
3.3 V, 24 V
3.3 V, 3.3 V
5 V
5 V, 10 V
5 V, 15 V, 15 V
5 V, 5 V
5 V, 5 V, 14 V, 14 V
5 V, 5 V, 15 V, 15 V