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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Qty. RoHS ECAD Model Resistance
Power Rating
Voltage Rating
Tolerance
Termination Style
Temperature Coefficient
Length
Width
Diameter
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Maximum Operating Temperature
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Packaging
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 33 ohm 5%
Datasheet
1.985In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 390 ohm 5% 3W Vitreous Enamel
Datasheet
535In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3 ohm 5% 3W Vitreous Enamel
Datasheet
996In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 3.3 ohm 5%
Datasheet
1.038In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3 ohm 5% 3W Wirewound Resistor
Datasheet
315In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 43 ohm 5% 3W Vitreous Enamel
Datasheet
700In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 47 ohm 5%
Datasheet
1.320In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 4.7K ohm 5%
Datasheet
133In Stock
1.000Expected 8/17/2026
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 4.7 ohm 5%
Datasheet
79In Stock
4.000On Order
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 560 ohm 5% 3W Wirewound Resistor
Datasheet
900In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 5.6K ohm 5% 3W Vitreous Enamel
Datasheet
1.393In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 5.6 ohm 5% 3W Vitreous Enamel
Datasheet
1.212In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 620 ohm 5% 3W Vitreous Enamel
Datasheet
878In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 680 ohm 5%
Datasheet
1.392In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 68 ohm 5%
Datasheet
1.395In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 750 ohm 5% 3W Vitreous Enamel
Datasheet
99In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 82 ohm 5% 3W Wirewound Resistor
Datasheet
1.362In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 0.10 ohm 5%
Datasheet
1.385In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 0.15 ohm 5%
Datasheet
31In Stock
3.000On Order
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 0.18 ohm 5% 3W Vitreous Enamel
Datasheet
995In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 0.22 ohm 5%
Datasheet
962In Stock
1.000Expected 9/17/2026
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 0.33 ohm 5%
Datasheet
885In Stock
2.000Expected 1/18/2027
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 0.47 ohm 5%
Datasheet
1.102In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 0.68 ohm 5%
Datasheet
556In Stock
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 0.33 ohm 5% 7W Wirewound Resistor
Datasheet
46In Stock
700On Order
MouseReel Available
Min.: 1
Mult.: 1
: 700

330 mOhms 7 W 200 V 5 % Axial 75 PPM / C 22 mm 8 mm - 55 C + 200 C W20 Reel, Cut Tape, MouseReel