Current Sense Resistors - SMD

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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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Part #

Current Sense Resistors - SMD .01 OHM 1% 1/4W 100PPM

CFN0402AFX-R010ELF
Bourns
1: 1,78 RON
12.409In Stock

Mfr. Part No.
CFN0402AFX-R010ELF

Mouser Part No
652-CFN0402AFX-R010E

Bourns

Current Sense Resistors - SMD .01 OHM 1% 1/4W 100PPM

Learn More

Datasheet

12.409In Stock

Cut Tape

1,78 RON

1,17 RON

0,85 RON

0,729 RON

0,704 RON

Reel

0,704 RON

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD ResMetalFoil A 0603 R005 5% 0.5W TCR100

CFN0603AJX-R005ELF
Bourns
1: 2,55 RON
4.894In Stock

Mfr. Part No.
CFN0603AJX-R005ELF

Mouser Part No
652-CFN0603AJX-R005E

Bourns

Current Sense Resistors - SMD ResMetalFoil A 0603 R005 5% 0.5W TCR100

Learn More

Datasheet

4.894In Stock

Cut Tape

2,55 RON

2,33 RON

1,23 RON

0,815 RON

View

Reel

0,377 RON

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD ResMetalFoil A 0805 R030 5% 0.75W TCR50

CFN0805AJZ-R030ELF
Bourns
1: 2,55 RON
3.955In Stock

Mfr. Part No.
CFN0805AJZ-R030ELF

Mouser Part No
652-CFN0805AJZ-R030E

Bourns

Current Sense Resistors - SMD ResMetalFoil A 0805 R030 5% 0.75W TCR50

Learn More

Datasheet

3.955In Stock

Cut Tape

2,55 RON

2,40 RON

1,16 RON

0,815 RON

View

Reel

0,377 RON

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .02 OHM 1% 1W 50PPM

CFN1206AFZ-R020ELF
Bourns
1: 2,64 RON
7.450In Stock

Mfr. Part No.
CFN1206AFZ-R020ELF

Mouser Part No
652-FN1206AFZR020ELF

Bourns

Current Sense Resistors - SMD .02 OHM 1% 1W 50PPM

Learn More

Datasheet

7.450In Stock

Cut Tape

2,64 RON

1,99 RON

1,52 RON

0,84 RON

Reel

0,493 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

Reel, Cut Tape, MouseReel

CFN-A

1206

3115

2 Terminal

Current Sense Resistors - SMD .01 OHM 1% 1/2W 100PPM

CFN0603AFX-R010ELF
Bourns
1: 2,68 RON
4.428In Stock

Mfr. Part No.
CFN0603AFX-R010ELF

Mouser Part No
652-CFN0603AFX-R010E

Bourns

Current Sense Resistors - SMD .01 OHM 1% 1/2W 100PPM

Learn More

Datasheet

4.428In Stock

Cut Tape

2,68 RON

2,55 RON

1,24 RON

0,86 RON

Reel

0,453 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD ResMetalFoil A 0805 R020 5% 0.75W TCR10

CFN0805AJX-R020ELF
Bourns
1: 2,38 RON
2.919In Stock

Mfr. Part No.
CFN0805AJX-R020ELF

Mouser Part No
652-CFN0805AJX-R020E

Bourns

Current Sense Resistors - SMD ResMetalFoil A 0805 R020 5% 0.75W TCR10

Learn More

Datasheet

2.919In Stock

Cut Tape

2,38 RON

1,81 RON

1,37 RON

0,76 RON

Reel

0,407 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .005 OHM 1% 3/4W 100PPM

CFN0805AFX-R005ELF
Bourns
1: 2,55 RON
3.747In Stock

Mfr. Part No.
CFN0805AFX-R005ELF

Mouser Part No
652-FN0805AFXR005ELF

Bourns

Current Sense Resistors - SMD .005 OHM 1% 3/4W 100PPM

Learn More

Datasheet

3.747In Stock

Cut Tape

2,55 RON

1,55 RON

1,21 RON

0,85 RON

0,739 RON

Reel

0,417 RON

Min.: 1
Mult.: 1

Reel: 4.000

Reel, Cut Tape

CFN-A

0805

2012

2 Terminal

Current Sense Resistors - SMD ResMetalFoil A 1206 R005 5% 1W TCR50

CFN1206AJZ-R005ELF
Bourns
1: 2,77 RON
3.867In Stock

Mfr. Part No.
CFN1206AJZ-R005ELF

Mouser Part No
652-CFN1206AJZ-R005E

Bourns

Current Sense Resistors - SMD ResMetalFoil A 1206 R005 5% 1W TCR50

Learn More

Datasheet

3.867In Stock

Cut Tape

2,77 RON

2,36 RON

1,19 RON

0,941 RON

View

Reel

0,473 RON

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4.000

Reel, Cut Tape, MouseReel

CFN-A

5 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

Current Sense Resistors - SMD .01 OHM 1% 1W 50PPM

CFN1206AFZ-R010ELF
Bourns
1: 2,64 RON
7.740In Stock

Mfr. Part No.
CFN1206AFZ-R010ELF

Mouser Part No
652-FN1206AFZR010ELF

Bourns

Current Sense Resistors - SMD .01 OHM 1% 1W 50PPM

Learn More

Datasheet

7.740In Stock

Cut Tape

2,64 RON

1,99 RON

1,52 RON

0,84 RON

Reel

0,493 RON

View

Min.: 1
Mult.: 1

Reel: 4.000

Reel, Cut Tape

CFN-A

1206

3115

2 Terminal

Current Sense Resistors - SMD ResMetalFoil A 0603 R010 5% 0.5W TCR50

CFN0603AJZ-R010ELF
Bourns
1: 2,68 RON
4.560In Stock

Mfr. Part No.
CFN0603AJZ-R010ELF

Mouser Part No
652-CFN0603AJZ-R010E

Bourns

Current Sense Resistors - SMD ResMetalFoil A 0603 R010 5% 0.5W TCR50

Learn More

Datasheet

4.560In Stock

Cut Tape

2,68 RON

2,30 RON

1,35 RON

0,85 RON

View

Reel

0,392 RON

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD ResMetalFoil A 1206 R020 5% 1W TCR100

CFN1206AJX-R020ELF
Bourns
1: 2,73 RON
1.858In Stock

Mfr. Part No.
CFN1206AJX-R020ELF

Mouser Part No
652-CFN1206AJX-R020E

Bourns

Current Sense Resistors - SMD ResMetalFoil A 1206 R020 5% 1W TCR100

Learn More

Datasheet

1.858In Stock

Cut Tape

2,73 RON

1,67 RON

1,31 RON

0,91 RON

View

Reel

0,443 RON

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .04 OHM 1% 1W 100PPM

CFN1206-FX-R040ELF
Bourns
1: 1,78 RON
10.992In Stock

Mfr. Part No.
CFN1206-FX-R040ELF

Mouser Part No
652-CFN1206FXR040ELF

Bourns

Current Sense Resistors - SMD .04 OHM 1% 1W 100PPM

Learn More

Datasheet

10.992In Stock

Cut Tape

1,78 RON

1,13 RON

0,85 RON

0,76 RON

Reel

0,448 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD ResMetalFoil A 1206 R010 5% 1W TCR100

CFN1206AJX-R010ELF
Bourns
1: 1,17 RON
7.881In Stock

Mfr. Part No.
CFN1206AJX-R010ELF

Mouser Part No
652-CFN1206AJX-R010E

Bourns

Current Sense Resistors - SMD ResMetalFoil A 1206 R010 5% 1W TCR100

Learn More

Datasheet

7.881In Stock

Cut Tape

1,17 RON

1,10 RON

0,895 RON

0,82 RON

Reel

0,458 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD ResMetalFoil A 1206 R010 5% 1W TCR50

CFN1206AJZ-R010ELF
Bourns
1: 2,64 RON
7.136In Stock

Mfr. Part No.
CFN1206AJZ-R010ELF

Mouser Part No
652-CFN1206AJZ-R010E

Bourns

Current Sense Resistors - SMD ResMetalFoil A 1206 R010 5% 1W TCR50

Learn More

Datasheet

7.136In Stock

Cut Tape

2,64 RON

1,76 RON

1,11 RON

0,88 RON

Reel

0,478 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .02 OHM 1% 1/2W 100PPM

CFN0603AFX-R020ELF
Bourns
1: 1,90 RON
2.400In Stock

Mfr. Part No.
CFN0603AFX-R020ELF

Mouser Part No
652-CFN0603AFX-R020E

Bourns

Current Sense Resistors - SMD .02 OHM 1% 1/2W 100PPM

Learn More

Datasheet

2.400In Stock

Cut Tape

1,90 RON

1,21 RON

0,91 RON

0,815 RON

Reel

0,453 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .005 OHM 1% 1/2W 50PPM

CFN0603AFZ-R005ELF
Bourns
1: 1,90 RON
5.428In Stock

Mfr. Part No.
CFN0603AFZ-R005ELF

Mouser Part No
652-CFN0603AFZ-R005E

Bourns

Current Sense Resistors - SMD .005 OHM 1% 1/2W 50PPM

Learn More

Datasheet

5.428In Stock

Cut Tape

1,90 RON

1,21 RON

0,91 RON

0,815 RON

Reel

0,488 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD ResMetalFoil A 0603 R020 5% 0.5W TCR100

CFN0603AJX-R020ELF
Bourns
1: 1,82 RON
4.821In Stock

Mfr. Part No.
CFN0603AJX-R020ELF

Mouser Part No
652-CFN0603AJX-R020E

Bourns

Current Sense Resistors - SMD ResMetalFoil A 0603 R020 5% 0.5W TCR100

Learn More

Datasheet

4.821In Stock

Cut Tape

1,82 RON

1,15 RON

0,865 RON

0,77 RON

Reel

0,417 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .01 OHM 1% 1/2W 100PPM

CFN0603-FX-R010ELF
Bourns
1: 1,82 RON
7.018In Stock

Mfr. Part No.
CFN0603-FX-R010ELF

Mouser Part No
652-CFN0603FXR010ELF

Bourns

Current Sense Resistors - SMD .01 OHM 1% 1/2W 100PPM

Learn More

Datasheet

7.018In Stock

Cut Tape

1,82 RON

1,16 RON

0,87 RON

0,775 RON

Reel

0,468 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .005 OHM 1% 1/2W 50PPM

CFN0603-FZ-R005ELF
Bourns
1: 1,82 RON
4.951In Stock
5.000Expected 2/23/2026

Mfr. Part No.
CFN0603-FZ-R005ELF

Mouser Part No
652-CFN0603FZR005ELF

Bourns

Current Sense Resistors - SMD .005 OHM 1% 1/2W 50PPM

Learn More

Datasheet

4.951In Stock

5.000Expected 2/23/2026

Cut Tape

1,82 RON

1,16 RON

0,87 RON

0,775 RON

Reel

0,448 RON

View

Min.: 1
Mult.: 1

Reel: 5.000

Reel, Cut Tape

5 mOhms

500 mW (1/2 W)

1 %

50 PPM / C

0603

1608

- 55 C

+ 155 C

Metal Foil

2 Terminal

SMD/SMT

Current Sense Resistors - SMD .02 OHM 1% 1/2W 50PPM

CFN0603-FZ-R020ELF
Bourns
1: 1,56 RON
7.512In Stock

Mfr. Part No.
CFN0603-FZ-R020ELF

Mouser Part No
652-CFN0603FZR020ELF

Bourns

Current Sense Resistors - SMD .02 OHM 1% 1/2W 50PPM

Learn More

Datasheet

7.512In Stock

Cut Tape

1,56 RON

0,991 RON

0,77 RON

0,669 RON

Reel

0,412 RON

View

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .01 OHM 1% 3/4W 100PPM

CFN0805AFX-R010ELF
Bourns
1: 1,95 RON
780In Stock
4.000Expected 6/10/2026

Mfr. Part No.
CFN0805AFX-R010ELF

Mouser Part No
652-CFN0805AFX-R010E

Bourns

Current Sense Resistors - SMD .01 OHM 1% 3/4W 100PPM

Learn More

Datasheet

780In Stock

4.000Expected 6/10/2026

Cut Tape

1,95 RON

1,25 RON

0,936 RON

0,825 RON

Reel

0,493 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .02 OHM 1% 3/4W 100PPM

CFN0805AFX-R020ELF
Bourns
1: 1,95 RON
4.179In Stock

Mfr. Part No.
CFN0805AFX-R020ELF

Mouser Part No
652-CFN0805AFX-R020E

Bourns

Current Sense Resistors - SMD .02 OHM 1% 3/4W 100PPM

Learn More

Datasheet

4.179In Stock

Cut Tape

1,95 RON

1,25 RON

0,946 RON

0,80 RON

Reel

0,523 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .03 OHM 1% 3/4W 100PPM

CFN0805AFX-R030ELF
Bourns
1: 1,69 RON
4.265In Stock

Mfr. Part No.
CFN0805AFX-R030ELF

Mouser Part No
652-CFN0805AFX-R030E

Bourns

Current Sense Resistors - SMD .03 OHM 1% 3/4W 100PPM

Learn More

Datasheet

4.265In Stock

Cut Tape

1,69 RON

1,19 RON

0,91 RON

0,795 RON

Reel

0,523 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD .005 OHM 1% 3/4W 50PPM

CFN0805AFZ-R005ELF
Bourns
1: 1,82 RON
2.585In Stock

Mfr. Part No.
CFN0805AFZ-R005ELF

Mouser Part No
652-CFN0805AFZ-R005E

Bourns

Current Sense Resistors - SMD .005 OHM 1% 3/4W 50PPM

Learn More

Datasheet

2.585In Stock

Cut Tape

1,82 RON

1,16 RON

0,87 RON

0,775 RON

Reel

0,463 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Current Sense Resistors - SMD ResMetalFoil A 0805 R010 5% 0.75W TCR10

CFN0805AJX-R010ELF
Bourns
1: 1,69 RON
3.665In Stock

Mfr. Part No.
CFN0805AJX-R010ELF

Mouser Part No
652-CFN0805AJX-R010E

Bourns

Current Sense Resistors - SMD ResMetalFoil A 0805 R010 5% 0.75W TCR10

Learn More

Datasheet

3.665In Stock

Cut Tape

1,69 RON

1,09 RON

0,82 RON

0,729 RON

Reel

0,433 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

CFN-A Metal Foil Current Sensing Resistors

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