CFN Metal Foil Current Sense Chip Resistors

Bourns CFN Metal Foil Current Sense Chip Resistors help to provide improved heat dissipation and higher reliability due to larger terminations and solder joint surfaces. The series is constructed with a metal foil resistive element mounted on a ceramic substrate for excellent heat conductivity. Applications for Bourns CFN metal foil current sense resistors include current sensing, power supplies, stepper motor drives, 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 0805 R030 5% 0.75W TCR50
Datasheet
23,879In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalfoil 1206 R020 5% 1W TCR50
Datasheet
13,906In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD 0.020 Ohms 1% 0.5W 100ppm 0805
Datasheet
114,319In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 20 mOhms 500 mW (1/2 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 ResMetalfoil 1206 R040 5% 1W TCR100
Datasheet
13,828In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 40 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 1% 1/4W 100PPM
Datasheet
17,376In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

Reel, Cut Tape, MouseReel CFN 10 mOhms 250 mW (1/4 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .02 OHM 1% 1/4W 100PPM
Datasheet
4,901In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

Reel, Cut Tape, MouseReel CFN 20 mOhms 250 mW (1/4 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .02 OHM 5% 1/2W 100PPM
Datasheet
9,019In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 1% 3/4W 50PPM
Datasheet
14,078In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalFoil 0805 R030 5% 0.75W TCR100
Datasheet
15,624In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .02 OHM 5% 1/4W 100PPM
Datasheet
7,565In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

Reel, Cut Tape, MouseReel CFN 20 mOhms 250 mW (1/4 W) 5 % 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalFoil 0805 R020 5% 0.75W TCR50
Datasheet
12,532In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .04 OHM 1% 1W 100PPM
Datasheet
9,934In 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 0805 R005 5% 0.75W TCR50
Datasheet
14,371In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 5 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .02 OHM 1% 1/2W 100PPM
Datasheet
15,448In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 5% 1/4W 100PPM
Datasheet
9,641In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

Reel, Cut Tape, MouseReel CFN 10 mOhms 250 mW (1/4 W) 5 % 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD ResMetalfoil 1206 R040 5% 1W TCR50
Datasheet
11,860In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 40 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD 1/2W 10mOhms 1% 100ppm
Datasheet
17,549In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 10 mOhms 500 mW (1/2 W) 1 % 100 PPM / C 0805 2012 2 mm (0.079 in) 1.25 mm (0.049 in) - 55 C + 155 C Metal Foil 2 Terminal SMD/SMT
Bourns Current Sense Resistors - SMD .005 OHM 1% 1/2W 100PPM
Datasheet
4,431In Stock
5,000Expected 10/29/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN 5 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 1% 1/2W 50PPM
Datasheet
5,577In Stock
10,000Expected 12/14/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .005 OHM 5% 1/2W 100PPM
Datasheet
4,621In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 5% 1/2W 100PPM
Datasheet
7,176In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN 10 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .005 OHM 5% 1/2W 50PPM
Datasheet
9,679In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .01 OHM 5% 1/2W 50PPM
Datasheet
7,123In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN 10 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .02 OHM 5% 1/2W 50PPM
Datasheet
7,689In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT
Bourns Current Sense Resistors - SMD .005 OHM 1% 3/4W 50PPM
Datasheet
5,659In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Reel, Cut Tape, MouseReel CFN 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 Standard SMD/SMT