WRM MELF Resistors

Welwyn / TT Electronics WRM MELF Resistors are high-reliability resistors with tolerances down to 0.1%. WRM MELF Resistors offer predictable pulse handling capability and Temperature Coefficient of Resistance (TCR) down to 5ppm/°C. The power rating of the WRM series ranges from 0.125W to 0.4W.

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Qty. RoHS ECAD Model Series
Resistance
Power Rating
Tolerance
Temperature Coefficient
Minimum Operating Temperature
Maximum Operating Temperature
Voltage Rating
Case Code - mm
Diameter
Length
Qualification
Packaging
Welwyn Components / TT Electronics MELF Resistors 1/4W 6.8K Ohm 1%
Datasheet
8 120In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

WRM 6.8 kOhms 250 mW (1/4 W) 1 % 50 PPM / C - 55 C + 125 C 200 V 0610 1.55 mm 3.7 mm Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors 0204 750 Ohms 1% Tol. 50ppm
Datasheet
8 356In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

WRM 750 Ohms 250 mW (1/4 W) 1 % 50 PPM / C - 55 C + 125 C 200 V 0610 1.55 mm 3.7 mm Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors 1/4W 82K Ohm 1%
Datasheet
1 310In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

WRM 82 kOhms 250 mW (1/4 W) 1 % 50 PPM / C - 55 C + 125 C 200 V 0610 1.55 mm 3.7 mm Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors 8.2K ohm 1% 50ppm AEC-Q200
Datasheet
8 450In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

WRM 8.2 kOhms 250 mW (1/4 W) 1 % 50 PPM / C - 55 C + 125 C 200 V 0610 1.55 mm 3.7 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
4 441In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 100 kOhms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
3 987In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 100 Ohms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
24 459In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 10 Ohms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
2 607In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 120 Ohms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
3 259In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 150 kOhms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
1 959In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 1 kOhms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
1 549In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 1 MOhms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
3 435In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM MELF 0207 AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
2 491In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 27 kOhms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
480In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM MELF 0207 AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
4 002In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM MELF 0207 AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
42In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 470 Ohms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
7 948In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 4.7 kOhms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors 0204 1K5 Ohms 1% Tol. 50ppm
Datasheet
7 190Expected 11/27/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

WRM 1.5 kOhms 250 mW (1/4 W) 1 % 50 PPM / C - 55 C + 125 C 200 V 0610 1.55 mm 3.7 mm Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors
Datasheet
6 000On Order
Min.: 1
Mult.: 1
: 3 000

WRM 4.7 Ohms 250 mW (1/4 W) 1 % 50 PPM / C - 55 C + 125 C 200 V 0610 1.55 mm 3.7 mm Reel, Cut Tape
Welwyn Components / TT Electronics MELF Resistors
Datasheet
3 997Expected 2/4/2027
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 10 kOhms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors 47 OHM 1% 50PPM
Datasheet
4 000Expected 12/2/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

WRM 47 Ohms 400 mW 1 % 50 PPM / C - 55 C 250 V MELF 0207 2.4 mm 6.1 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors 12 ohm 1% 50ppm AEC-Q200
Datasheet
Non-Stocked
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

WRM 12 Ohms 250 mW (1/4 W) 1 % 50 PPM / C - 55 C + 125 C 200 V 0610 1.55 mm 3.7 mm AEC-Q200 Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors 1/4W 330K Ohm 1%
Datasheet
Non-Stocked
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

WRM 330 kOhms 250 mW (1/4 W) 1 % 50 PPM / C - 55 C + 125 C 200 V 0610 1.55 mm 3.7 mm Reel, Cut Tape, MouseReel
Welwyn Components / TT Electronics MELF Resistors 39 ohm 1% 0.25W MELF Resistor
Datasheet
Non-Stocked
Min.: 1
Mult.: 1
: 3 000

WRM 39 Ohms 250 mW (1/4 W) 1 % 50 PPM / C - 55 C + 125 C 200 V 0610 1.55 mm 3.7 mm Reel, Cut Tape
Welwyn Components / TT Electronics MELF Resistors 1/4W 3 Ohm 1%
Datasheet
Non-Stocked
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

WRM 3 Ohms 250 mW (1/4 W) 1 % 50 PPM / C - 55 C + 125 C 200 V 0610 1.55 mm 3.7 mm Reel, Cut Tape, MouseReel