High-Surge MELF Resistors (HSMW)

Welwyn / TT Electronics High-Surge MELF Resistors (HSMW) are engineered to deliver exceptional surge tolerance and controlled failure performance in compact, surface-mount designs. Combining wirewound construction with a robust MELF package, these resistors deliver reliable protection against high-energy transients while maintaining stable operation under continuous load. The HSMW product line from Welwyn / TT Electronics withstands fast inrush energies up to 6.5J and protects against lightning surge events up to 3.8kV (1.2/50µs). These resistors are designed for use in power conversion and mains-connected applications where reliability and safety are crucial.

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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
Tolerance
Temperature Coefficient
Minimum Operating Temperature
Maximum Operating Temperature
Diameter
Length
Packaging
Welwyn Components / TT Electronics MELF Resistors 100 OHM 5% 200PPM 1W
Datasheet
5,680In Stock
Min.: 1
Mult.: 1
: 2,000

100 Ohms 1 W 5 % 200 PPM / C - 55 C + 155 C 3.5 mm 9 mm Reel, Cut Tape
Welwyn Components / TT Electronics MELF Resistors 10 OHM 5% 200PPM 1W
Datasheet
3,920In Stock
Min.: 1
Mult.: 1
: 2,000

10 Ohms 1 W 5 % 200 PPM / C - 55 C + 155 C 3.5 mm 9 mm Reel, Cut Tape
Welwyn Components / TT Electronics MELF Resistors 1 OHM 5% 200PPM 1W
Datasheet
5,920In Stock
Min.: 1
Mult.: 1
: 2,000

1 Ohms 1 W 5 % 200 PPM / C - 55 C + 155 C 3.5 mm 9 mm Reel, Cut Tape
Welwyn Components / TT Electronics MELF Resistors 220 OHM 5% 200PPM 1W
Datasheet
4,838In Stock
6,000On Order
Min.: 1
Mult.: 1
: 2,000

220 Ohms 1 W 5 % 200 PPM / C - 55 C + 155 C 3.5 mm 9 mm Reel, Cut Tape
Welwyn Components / TT Electronics MELF Resistors 22 OHM 5% 200PPM 1W
Datasheet
5,850In Stock
Min.: 1
Mult.: 1
: 2,000

22 Ohms 1 W 5 % 200 PPM / C - 55 C + 155 C 3.5 mm 9 mm Reel, Cut Tape
Welwyn Components / TT Electronics MELF Resistors 2.2 OHM 5% 200PPM 1W
Datasheet
5,970In Stock
Min.: 1
Mult.: 1
: 2,000

2.2 Ohms 1 W 5 % 200 PPM / C - 55 C + 155 C 3.5 mm 9 mm Reel, Cut Tape
Welwyn Components / TT Electronics MELF Resistors 470 OHM 5% 200PPM 1W
Datasheet
5,840In Stock
Min.: 1
Mult.: 1
: 2,000

470 Ohms 1 W 5 % 200 PPM / C - 55 C + 155 C 3.5 mm 9 mm Reel, Cut Tape
Welwyn Components / TT Electronics MELF Resistors 47 OHM 5% 200PPM 1W
Datasheet
6,000In Stock
6,000Expected 06/10/2026
Min.: 1
Mult.: 1
: 2,000

47 Ohms 1 W 5 % 200 PPM / C - 55 C + 155 C 3.5 mm 9 mm Reel, Cut Tape
Welwyn Components / TT Electronics MELF Resistors 4.7 OHM 5% 200PPM 1W
Datasheet
5,959In Stock
Min.: 1
Mult.: 1
: 2,000

4.7 Ohms 1 W 5 % 200 PPM / C - 55 C + 155 C 3.5 mm 9 mm Reel, Cut Tape