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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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Resistance
Power Rating
Voltage Rating
Tolerance
Termination Style
Temperature Coefficient
Length
Width
Diameter
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 150 ohm 5%
Datasheet
1,306In Stock
Min.: 1
Mult.: 1
: 1,000

150 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 15 ohm 5%
Datasheet
1,223In Stock
Min.: 1
Mult.: 1
: 1,000

15 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 180 ohm 1% 3W Vitreous Enamel
Datasheet
898In Stock
Min.: 1
Mult.: 1
: 1,000

180 Ohms 3 W 100 V 1 % 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 18 ohm 5% 3W Vitreous Enamel
Datasheet
725In Stock
Min.: 1
Mult.: 1
: 1,000

18 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 1K ohm 5%
Datasheet
1,343In Stock
4,000Expected 22/12/2026
Min.: 1
Mult.: 1
: 1,000

1 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 1.5K ohm 5%
Datasheet
1,000In Stock
Min.: 1
Mult.: 1
: 1,000

1.5 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 1.0 ohm 5%
Datasheet
2,048In Stock
Min.: 1
Mult.: 1
: 1,000

1 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 1.5 ohm 5%
Datasheet
399In Stock
Min.: 1
Mult.: 1
: 1,000

1.5 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 1.8 ohm 5% 3W Vitreous Enamel
Datasheet
605In Stock
Min.: 1
Mult.: 1
: 1,000

1.8 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 1 ohm 5% 3W Wirewound Resistor
Datasheet
949In Stock
Min.: 1
Mult.: 1

1 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 3Watt 220 ohm 5%
Datasheet
2,575In Stock
Min.: 1
Mult.: 1
: 1,000

220 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 22 ohm 5%
Datasheet
1,958In Stock
Min.: 1
Mult.: 1
: 1,000

22 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 240 ohm 1% 3W Vitreous Enamel
Datasheet
680In Stock
Min.: 1
Mult.: 1
: 1,000

240 Ohms 3 W 100 V 1 % 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 270 ohm 5% 3W Wirewound Resistor
Datasheet
1,975In Stock
1,000On Order
Min.: 1
Mult.: 1
: 1,000

270 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 27 ohm 5% 3W Wirewound Resistor
Datasheet
893In Stock
Min.: 1
Mult.: 1
: 1,000

27 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 2K ohm 1% 3W
Datasheet
635In Stock
Min.: 1
Mult.: 1
: 1,000

2 kOhms 3 W 100 V 1 % 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 2.4K ohm 5% 3W Vitreous Enamel
Datasheet
340In Stock
Min.: 1
Mult.: 1
: 1,000

2.4 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 3Watt 2.2 ohm 5%
Datasheet
311In Stock
1,000Expected 29/09/2026
Min.: 1
Mult.: 1
: 1,000

2.2 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 2.4 ohm 5% 3W Vitreous Enamel
Datasheet
286In Stock
Min.: 1
Mult.: 1
: 1,000

2.4 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 2.7 ohm 5% 3W Wirewound Resistor
Datasheet
1,498In Stock
Min.: 1
Mult.: 1
: 1,000

2.7 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 300 ohm 5% 3W Wirewound Resistor
Datasheet
585In Stock
Min.: 1
Mult.: 1
: 1,000

300 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 330 ohm 5%
Datasheet
909In Stock
1,000Expected 11/12/2026
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
Welwyn Components / TT Electronics Wirewound Resistors - Through Hole 3Watt 33 ohm 5%
Datasheet
995In Stock
1,000On Order
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