Current Sense Resistors

Ohmite Current Sense Resistors are available in many popular sizes and packages. These resistors are used to monitor current in a circuit via a voltage drop and control circuit. Current sense resistors are characterized by low values to minimize power consumption. Ohmite produces current sense resistors with TCR values as low as 40ppm, resistance as low as 0.0005Ω, tolerances down to 0.5%, and a wide range of mounting options from SMD to SOT-227 heat sinkable. Power dissipation ranges from 0.125W to 100W in the SOT package.

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Resistance
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Temperature Coefficient
Case Code - in
Case Code - mm
Ohmite Current Sense Resistors - SMD 0.025 ohm 0.5% 2W
Datasheet
820In Stock
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Mult.: 1
Reel: 1,000

SMD/SMT 25 mOhms 2 W 0.5 % 50 PPM / C 1225 (Reversed) 3263 (Reversed)
Ohmite Current Sense Resistors - SMD 0.03 ohm 0.5% 2W
Datasheet
1,198In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 30 mOhms 2 W 0.5 % 50 PPM / C 1225 (Reversed) 3263 (Reversed)
Ohmite Current Sense Resistors - SMD 2W 0.03 Ohms 1%
Datasheet
755In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 30 mOhms 2 W 1 % 50 PPM / C 1225 (Reversed) 3263 (Reversed)
Ohmite Current Sense Resistors - SMD 0.05 ohm 0.5% 2W
Datasheet
193In Stock
1,000Expected 15-06-2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 50 mOhms 2 W 0.5 % 50 PPM / C 1225 (Reversed) 3263 (Reversed)
Ohmite Current Sense Resistors - SMD 2watt .05ohm 1% Metal Foil
Datasheet
3In Stock
2,000Expected 15-06-2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 50 mOhms 2 W 1 % 50 PPM / C 1225 (Reversed) 3263 (Reversed)
Ohmite Current Sense Resistors - SMD 3watt .001ohm 5% Metal Foil
Datasheet
939In Stock
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Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 1 mOhms 3 W 5 % 150 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 3watt .002ohm 2% Metal Foil
Datasheet
914In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 2 mOhms 3 W 2 % 100 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 3watt .005ohm 1% Metal Foil
Datasheet
1,172In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 5 mOhms 3 W 1 % 50 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 0.01 ohm 0.5% 3W
Datasheet
998In Stock
2,000Expected 06-07-2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 10 mOhms 3 W 0.5 % 50 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 3watt .01ohm 1% Metal Foil
Datasheet
852In Stock
1,000Expected 27-04-2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 10 mOhms 3 W 1 % 50 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 0.02 ohm 0.5% 3W
Datasheet
327In Stock
1,000Expected 25-02-2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 20 mOhms 3 W 0.5 % 50 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 0.025 ohm 0.5% 3W
Datasheet
955In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 25 mOhms 3 W 0.5 % 50 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 3watt .025ohm 1% Metal Foil
Datasheet
2,017In Stock
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Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 25 mOhms 3 W 1 % 50 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 0.05 ohm 0.5% 3W
Datasheet
12In Stock
2,000Expected 17-02-2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 50 mOhms 3 W 0.5 % 50 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 3watt .05ohm 1% Metal Foil
Datasheet
320In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 50 mOhms 3 W 1 % 50 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 4watt .001ohm 5% Metal Foil
Datasheet
776In Stock
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Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 1 mOhms 4 W 5 % 150 PPM / C 1835 (Reversed) 4590 (Reversed)
Ohmite Current Sense Resistors - SMD 4watt .002ohm 2% Metal Foil
Datasheet
273In Stock
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Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 2 mOhms 4 W 2 % 100 PPM / C 1835 (Reversed) 4590 (Reversed)
Ohmite Current Sense Resistors - SMD 4watt .005ohm 1% Metal Foil
Datasheet
925In Stock
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Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 5 mOhms 4 W 1 % 50 PPM / C 1835 (Reversed) 4590 (Reversed)
Ohmite Current Sense Resistors - SMD 4watt .01ohm 1% Metal Foil
Datasheet
1,597In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 10 mOhms 4 W 1 % 50 PPM / C 1835 (Reversed) 4590 (Reversed)
Ohmite Current Sense Resistors - SMD 0.015 ohm 0.5% 4W
Datasheet
193In Stock
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Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 15 mOhms 4 W 0.5 % 50 PPM / C 1835 (Reversed) 4590 (Reversed)
Ohmite Current Sense Resistors - SMD 0.03 ohm 0.5% 4W
Datasheet
469In Stock
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Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 30 mOhms 4 W 0.5 % 50 PPM / C 1835 (Reversed) 4590 (Reversed)
Ohmite Current Sense Resistors - SMD 0.05 ohm 0.5% 4W
Datasheet
97In Stock
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Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT 50 mOhms 4 W 0.5 % 50 PPM / C 1835 (Reversed) 4590 (Reversed)
Ohmite Current Sense Resistors - SMD .01ohm 1% 4 Terminal
Datasheet
527In Stock
25,000Expected 12-10-2026
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Mult.: 1
Reel: 5,000

SMD/SMT 10 mOhms 500 mW (1/2 W) 1 % 50 PPM / C 1206 3216
Ohmite Current Sense Resistors - SMD .012ohm 1% 4 Terminal
Datasheet
4,163In Stock
5,000Expected 14-10-2026
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Min.: 1
Mult.: 1
Reel: 5,000

SMD/SMT 12 mOhms 500 mW (1/2 W) 1 % 50 PPM / C 1206 3216
Ohmite Current Sense Resistors - SMD 0.024ohm 1% 4 Terminal
Datasheet
4,630In Stock
10,000Expected 14-10-2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

SMD/SMT 24 mOhms 500 mW (1/2 W) 1 % 50 PPM / C 1206 3216