CFN-A Metal Foil Current Sensing Resistors

Bourns CFN-A resistors are metal foil resistors used primarily for current sensing applications. These resistors come in packages ranging from 0402 to 1206, and feature resistance ratings from 5mΩ to 40mΩ. Bourns CFN-A metal foil resistors come in both 5% and 1% tolerances. Applications for these current sensing resistors include power supplies, stepper motor drivers, and input amplifiers.

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Qty. RoHS ECAD Model Packaging
Series
Resistance
Power Rating
Tolerance
Temperature Coefficient
Case Code - in
Case Code - mm
Length
Width
Height
Minimum Operating Temperature
Maximum Operating Temperature
Technology
Termination
Termination Style
Bourns Current Sense Resistors - SMD ResMetalFoil A 1206 R020 5% 1W TCR100
Datasheet
1,613In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 20 mOhms 1 W 5 % 100 PPM / C 1206 3216 3.2 mm (0.126 in) 1.6 mm (0.063 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .005 OHM 1% 3/4W 100PPM
Datasheet
3,629In Stock
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape CFN-A 0805 2012 2 Terminal
Bourns Current Sense Resistors - SMD ResMetalFoil A 0805 R020 5% 0.75W TCR10
Datasheet
2,909In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 20 mOhms 750 mW (3/4 W) 5 % 100 PPM / C 0805 2012 2 mm (0.079 in) 1.25 mm (0.049 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .04 OHM 1% 1W 100PPM
Datasheet
9,922In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 40 mOhms 1 W 1 % 100 PPM / C 1206 3216 - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalFoil A 1206 R010 5% 1W TCR50
Datasheet
7,021In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 10 mOhms 1 W 5 % 50 PPM / C 1206 3216 3.2 mm (0.126 in) 1.6 mm (0.063 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 1% 1W 50PPM
Datasheet
7,740In Stock
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape CFN-A 1206 3115 2 Terminal
Bourns Current Sense Resistors - SMD ResMetalFoil A 1206 R010 5% 1W TCR100
Datasheet
7,879In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 10 mOhms 1 W 5 % 100 PPM / C 1206 3216 3.2 mm (0.126 in) 1.6 mm (0.063 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 1% 1/4W 100PPM
Datasheet
7,263In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

Reel, Cut Tape, MouseReel CFN-A 10 mOhms 200 mW (1/5 W) 1 % 100 PPM / C 0402 1005 1.1 mm (0.043 in) 0.55 mm (0.022 in) 0.45 mm (0.018 in) - 55 C + 125 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 1% 1/2W 100PPM
Datasheet
1,923In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN-A 10 mOhms 500 mW (1/2 W) 1 % 100 PPM / C 0603 1508 1.6 mm (0.063 in) 0.8 mm (0.031 in) 0.6 mm (0.024 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .02 OHM 1% 1/2W 100PPM
Datasheet
1,520In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN-A 20 mOhms 500 mW (1/2 W) 1 % 100 PPM / C 0603 1508 1.6 mm (0.063 in) 0.8 mm (0.031 in) 0.6 mm (0.024 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .005 OHM 1% 1/2W 50PPM
Datasheet
3,363In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN-A 5 mOhms 500 mW (1/2 W) 1 % 50 PPM / C 0603 1508 1.6 mm (0.063 in) 0.8 mm (0.031 in) 0.6 mm (0.024 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalFoil A 0603 R005 5% 0.5W TCR100
Datasheet
4,894In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN-A 5 mOhms 500 mW (1/2 W) 5 % 100 PPM / C 0603 1508 1.6 mm (0.063 in) 0.8 mm (0.031 in) 0.6 mm (0.024 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalFoil A 0603 R020 5% 0.5W TCR100
Datasheet
3,221In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN-A 20 mOhms 500 mW (1/2 W) 5 % 100 PPM / C 0603 1508 1.6 mm (0.063 in) 0.8 mm (0.031 in) 0.6 mm (0.024 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalFoil A 0603 R010 5% 0.5W TCR50
Datasheet
4,560In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN-A 10 mOhms 500 mW (1/2 W) 5 % 50 PPM / C 0603 1508 1.6 mm (0.063 in) 0.8 mm (0.031 in) 0.6 mm (0.024 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 1% 1/2W 100PPM
Datasheet
282In Stock
5,000Expected 11/26/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel 10 mOhms 500 mW (1/2 W) 1 % 100 PPM / C 0603 1608 - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .005 OHM 1% 1/2W 50PPM
Datasheet
9,151In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel 5 mOhms 500 mW (1/2 W) 1 % 50 PPM / C 0603 1608 - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .02 OHM 1% 1/2W 50PPM
Datasheet
39In Stock
20,000On Order
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape 20 mOhms 500 mW (1/2 W) 1 % 50 PPM / C 0603 1608 - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 1% 3/4W 100PPM
Datasheet
3,600In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 10 mOhms 750 mW (3/4 W) 1 % 100 PPM / C 0805 2012 2 mm (0.079 in) 1.25 mm (0.049 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .02 OHM 1% 3/4W 100PPM
Datasheet
3,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 20 mOhms 750 mW (3/4 W) 1 % 100 PPM / C 0805 2012 2 mm (0.079 in) 1.25 mm (0.049 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .03 OHM 1% 3/4W 100PPM
Datasheet
4,235In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 30 mOhms 750 mW (3/4 W) 1 % 100 PPM / C 0805 2012 2 mm (0.079 in) 1.25 mm (0.049 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .005 OHM 1% 3/4W 50PPM
Datasheet
2,182In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 5 mOhms 750 mW (3/4 W) 1 % 50 PPM / C 0805 2012 2 mm (0.079 in) 1.25 mm (0.049 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalFoil A 0805 R010 5% 0.75W TCR10
Datasheet
3,665In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 10 mOhms 750 mW (3/4 W) 5 % 100 PPM / C 0805 2012 2 mm (0.079 in) 1.25 mm (0.049 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalFoil A 0805 R030 5% 0.75W TCR10
Datasheet
3,750In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 30 mOhms 750 mW (3/4 W) 5 % 100 PPM / C 0805 2012 2 mm (0.079 in) 1.25 mm (0.049 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalFoil A 0805 R030 5% 0.75W TCR50
Datasheet
3,955In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN-A 30 mOhms 750 mW (3/4 W) 5 % 50 PPM / C 0805 2012 2 mm (0.079 in) 1.25 mm (0.049 in) 0.7 mm (0.028 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .03 OHM 1% 3/4W 100PPM
Datasheet
5,193In Stock
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape CFN 0805 2012 2 Terminal