Wirewound Resistors – Mouser Peru

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W20 Wirewound Resistors

Welwyn / TT Electronics W20 Wirewound Resistors are CECC approved and offer high stability and reliability. Suitable for harsh environments, Welwyn / TT Electronics W20 Resistors have an impervious lead-free vitreous enamel coating. In addition, these resistors feature high-power dissipation for their size and overload characteristics ideal for protection circuits.

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Part #

Wirewound Resistors - Through Hole 3Watt 330 ohm 5%

W21-330RJI
Welwyn Components / TT Electronics
1: S/8.64
884In Stock
1,000Expected 12/11/2026

Mfr. Part #
W21-330RJI

Mouser Part #
756-W21-330RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 330 ohm 5%

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Datasheet

884In Stock

1,000Expected 12/11/2026

S/8.64

S/5.49

S/4.32

S/4.20

S/3.46

Reel

S/2.13

Min.: 1
Mult.: 1

: 1,000

330 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 33 ohm 5%

W21-33RJI
Welwyn Components / TT Electronics
1: S/10.78
1,975In Stock

Mfr. Part #
W21-33RJI

Mouser Part #
756-W21-33RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 33 ohm 5%

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Datasheet

1,975In Stock

S/10.78

S/7.12

S/6.07

S/5.96

Reel

S/2.45

View

Min.: 1
Mult.: 1

: 1,000

33 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 390 ohm 5% 3W Vitreous Enamel

W21-390RJI
Welwyn Components / TT Electronics
1: S/9.26
515In Stock

Mfr. Part #
W21-390RJI

Mouser Part #
756-W21-390RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 390 ohm 5% 3W Vitreous Enamel

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Datasheet

515In Stock

S/9.26

S/6.19

S/4.79

S/4.71

S/3.73

Reel

S/2.16

Min.: 1
Mult.: 1

: 1,000

390 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3 ohm 5% 3W Vitreous Enamel

W21-3R0JI
Welwyn Components / TT Electronics
1: S/7.20
996In Stock

Mfr. Part #
W21-3R0JI

Mouser Part #
756-W21-3R0JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3 ohm 5% 3W Vitreous Enamel

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Datasheet

996In Stock

S/7.20

S/4.24

S/3.25

S/2.80

Reel

S/1.84

View

Min.: 1
Mult.: 1

: 1,000

3 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 3.3 ohm 5%

W21-3R3JI
Welwyn Components / TT Electronics
1: S/9.77
38In Stock
1,000Expected 2/1/2027

Mfr. Part #
W21-3R3JI

Mouser Part #
756-W21-3R3JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 3.3 ohm 5%

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Datasheet

38In Stock

1,000Expected 2/1/2027

S/9.77

S/6.66

S/4.40

S/3.08

View

Reel

S/2.13

Min.: 1
Mult.: 1

: 1,000

3.3 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3 ohm 5% 3W Wirewound Resistor

W21-3RJI
Welwyn Components / TT Electronics
1: S/12.61
315In Stock

Mfr. Part #
W21-3RJI

Mouser Part #
756-W21-3RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3 ohm 5% 3W Wirewound Resistor

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Datasheet

315In Stock

S/12.61

S/7.94

S/6.50

S/6.34

View

Min.: 1
Mult.: 1

3 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Bulk

Wirewound Resistors - Through Hole 43 ohm 5% 3W Vitreous Enamel

W21-43RJI
Welwyn Components / TT Electronics
1: S/8.68
700In Stock

Mfr. Part #
W21-43RJI

Mouser Part #
756-W21-43RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 43 ohm 5% 3W Vitreous Enamel

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Datasheet

700In Stock

S/8.68

S/5.53

S/4.09

S/3.97

S/3.71

Reel

S/2.16

Min.: 1
Mult.: 1

: 1,000

43 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 47 ohm 5%

W21-47RJI
Welwyn Components / TT Electronics
1: S/9.26
1,320In Stock

Mfr. Part #
W21-47RJI

Mouser Part #
756-W21-47RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 47 ohm 5%

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Datasheet

1,320In Stock

S/9.26

S/6.15

S/4.13

S/3.84

Reel

S/2.20

View

Min.: 1
Mult.: 1

: 1,000

47 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 4.7K ohm 5%

W21-4K7JI
Welwyn Components / TT Electronics
1: S/12.69
67In Stock
2,000Expected 12/25/2026

Mfr. Part #
W21-4K7JI

Mouser Part #
756-W21-4K7JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 4.7K ohm 5%

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Datasheet

67In Stock

2,000Expected 12/25/2026

S/12.69

S/7.63

S/6.15

S/5.57

Reel

S/3.44

View

Min.: 1
Mult.: 1

: 1,000

4.7 kOhms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 4.7 ohm 5%

W21-4R7JI
Welwyn Components / TT Electronics
1: S/7.51
74In Stock
4,000On Order

Mfr. Part #
W21-4R7JI

Mouser Part #
756-W21-4R7JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 4.7 ohm 5%

Learn More

Datasheet

74In Stock

4,000On Order

S/7.51

S/4.55

S/3.74

S/2.95

View

Reel

S/2.13

Min.: 1
Mult.: 1

: 1,000

4.7 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 560 ohm 5% 3W Wirewound Resistor

W21-560RJI
Welwyn Components / TT Electronics
1: S/7.63
900In Stock

Mfr. Part #
W21-560RJI

Mouser Part #
756-W21-560RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 560 ohm 5% 3W Wirewound Resistor

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Datasheet

900In Stock

S/7.63

S/4.67

S/3.74

S/3.25

S/2.90

Reel

S/2.16

Min.: 1
Mult.: 1

: 1,000

560 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 5.6K ohm 5% 3W Vitreous Enamel

W21-5K6JI
Welwyn Components / TT Electronics
1: S/18.41
1,393In Stock

Mfr. Part #
W21-5K6JI

Mouser Part #
756-W21-5K6JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 5.6K ohm 5% 3W Vitreous Enamel

Learn More

Datasheet

1,393In Stock

S/18.41

S/11.56

S/8.91

S/8.72

Reel

S/3.84

View

Min.: 1
Mult.: 1

: 1,000

5.6 kOhms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 5.6 ohm 5% 3W Vitreous Enamel

W21-5R6JI
Welwyn Components / TT Electronics
1: S/11.17
1,212In Stock

Mfr. Part #
W21-5R6JI

Mouser Part #
756-W21-5R6JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 5.6 ohm 5% 3W Vitreous Enamel

Learn More

Datasheet

1,212In Stock

S/11.17

S/7.08

S/5.10

S/5.02

Reel

S/3.62

View

Min.: 1
Mult.: 1

: 1,000

5.6 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 620 ohm 5% 3W Vitreous Enamel

W21-620RJI
Welwyn Components / TT Electronics
1: S/8.80
878In Stock

Mfr. Part #
W21-620RJI

Mouser Part #
756-W21-620RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 620 ohm 5% 3W Vitreous Enamel

Learn More

Datasheet

878In Stock

S/8.80

S/5.72

S/4.55

S/4.44

S/3.39

Reel

S/2.16

Min.: 1
Mult.: 1

: 1,000

620 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 680 ohm 5%

W21-680RJI
Welwyn Components / TT Electronics
1: S/12.34
1,392In Stock

Mfr. Part #
W21-680RJI

Mouser Part #
756-W21-680RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 680 ohm 5%

Learn More

Datasheet

1,392In Stock

S/12.34

S/7.75

S/6.03

S/5.84

Reel

S/2.42

View

Min.: 1
Mult.: 1

: 1,000

680 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 68 ohm 5%

W21-68RJI
Welwyn Components / TT Electronics
1: S/11.64
1,395In Stock

Mfr. Part #
W21-68RJI

Mouser Part #
756-W21-68RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 68 ohm 5%

Learn More

Datasheet

1,395In Stock

S/11.64

S/7.36

S/5.10

S/5.02

Reel

S/2.20

View

Min.: 1
Mult.: 1

: 1,000

68 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 750 ohm 5% 3W Vitreous Enamel

W21-750RJI
Welwyn Components / TT Electronics
1: S/13.04
99In Stock

Mfr. Part #
W21-750RJI

Mouser Part #
756-W21-750RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 750 ohm 5% 3W Vitreous Enamel

Learn More

Datasheet

99In Stock

S/13.04

S/8.17

S/6.38

S/3.40

View

Reel

S/2.16

Min.: 1
Mult.: 1

: 1,000

750 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 82 ohm 5% 3W Wirewound Resistor

W21-82RJI
Welwyn Components / TT Electronics
1: S/12.73
1,354In Stock

Mfr. Part #
W21-82RJI

Mouser Part #
756-W21-82RJI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 82 ohm 5% 3W Wirewound Resistor

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Datasheet

1,354In Stock

S/12.73

S/8.41

S/6.97

S/6.89

S/6.85

Reel

S/3.35

Min.: 1
Mult.: 1

: 1,000

82 Ohms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 0.10 ohm 5%

W21-R10JI
Welwyn Components / TT Electronics
1: S/8.33
1,125In Stock

Mfr. Part #
W21-R10JI

Mouser Part #
756-W21-R10JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 0.10 ohm 5%

Learn More

Datasheet

1,125In Stock

S/8.33

S/5.10

S/4.01

S/3.46

Reel

S/2.59

View

Min.: 1
Mult.: 1

: 1,000

100 mOhms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 0.15 ohm 5%

W21-R15JI
Welwyn Components / TT Electronics
1: S/8.49
27In Stock
3,000On Order

Mfr. Part #
W21-R15JI

Mouser Part #
756-W21-R15JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 0.15 ohm 5%

Learn More

Datasheet

27In Stock

3,000On Order

S/8.49

S/5.18

S/4.79

S/3.75

Reel

S/2.75

View

Min.: 1
Mult.: 1

: 1,000

150 mOhms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 0.18 ohm 5% 3W Vitreous Enamel

W21-R18JI
Welwyn Components / TT Electronics
1: S/8.33
995In Stock

Mfr. Part #
W21-R18JI

Mouser Part #
756-W21-R18JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 0.18 ohm 5% 3W Vitreous Enamel

Learn More

Datasheet

995In Stock

S/8.33

S/5.10

S/4.67

S/3.68

Reel

S/2.70

View

Min.: 1
Mult.: 1

: 1,000

180 mOhms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 200 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 0.22 ohm 5%

W21-R22JI
Welwyn Components / TT Electronics
1: S/8.33
962In Stock
1,000Expected 9/17/2026

Mfr. Part #
W21-R22JI

Mouser Part #
756-W21-R22JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 0.22 ohm 5%

Learn More

Datasheet

962In Stock

1,000Expected 9/17/2026

S/8.33

S/5.10

S/4.67

S/3.32

Reel

S/2.59

View

Min.: 1
Mult.: 1

: 1,000

220 mOhms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 0.33 ohm 5%

W21-R33JI
Welwyn Components / TT Electronics
1: S/8.29
885In Stock
2,000Expected 1/18/2027

Mfr. Part #
W21-R33JI

Mouser Part #
756-W21-R33JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 0.33 ohm 5%

Learn More

Datasheet

885In Stock

2,000Expected 1/18/2027

S/8.29

S/5.06

S/4.63

S/3.68

Reel

S/2.56

View

Min.: 1
Mult.: 1

: 1,000

330 mOhms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 0.47 ohm 5%

W21-R47JI
Welwyn Components / TT Electronics
1: S/8.33
988In Stock

Mfr. Part #
W21-R47JI

Mouser Part #
756-W21-R47JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 0.47 ohm 5%

Learn More

Datasheet

988In Stock

S/8.33

S/5.10

S/4.67

S/3.68

Reel

S/2.70

View

Min.: 1
Mult.: 1

: 1,000

470 mOhms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

Wirewound Resistors - Through Hole 3Watt 0.68 ohm 5%

W21-R68JI
Welwyn Components / TT Electronics
1: S/8.33
556In Stock

Mfr. Part #
W21-R68JI

Mouser Part #
756-W21-R68JI

Welwyn Components / TT Electronics

Wirewound Resistors - Through Hole 3Watt 0.68 ohm 5%

Learn More

Datasheet

556In Stock

S/8.33

S/5.10

S/4.67

S/3.32

Reel

S/2.59

View

Min.: 1
Mult.: 1

: 1,000

680 mOhms

3 W

100 V

5 %

Axial

75 PPM / C

12.7 mm

5.6 mm

- 55 C

+ 350 C

W20

Ammo Pack

W20 Wirewound Resistors

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100 mOhms
120 mOhms
150 mOhms
180 mOhms
200 mOhms
220 mOhms
270 mOhms
330 mOhms
390 mOhms
470 mOhms
500 mOhms
510 mOhms
560 mOhms
680 mOhms
820 mOhms
1 Ohms
1.2 Ohms
1.5 Ohms
1.8 Ohms
2 Ohms