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
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Case Code - mm
Ohmite Current Sense Resistors - SMD 1W .001 Ohm 5%
Datasheet
802In Stock
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: 1,000

SMD/SMT 1 mOhms 1 W 5 % 100 PPM / C 0612 (Reversed) 1632 (Reversed)
Ohmite Current Sense Resistors - SMD 1W .002 Ohm 2%
Datasheet
617In Stock
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Mult.: 1
: 1,000

SMD/SMT 2 mOhms 1 W 2 % 100 PPM / C 0612 (Reversed) 1632 (Reversed)
Ohmite Current Sense Resistors - SMD 1W .050 Ohm 1%
Datasheet
315In Stock
4,000Expected 9/14/2026
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Min.: 1
Mult.: 1
: 1,000

SMD/SMT 50 mOhms 1 W 1 % 50 PPM / C 0612 (Reversed) 1632 (Reversed)
Ohmite Current Sense Resistors - SMD 2W .003 Ohm 1%
Datasheet
481In Stock
4,000Expected 12/21/2026
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Mult.: 1
: 1,000

SMD/SMT 3 mOhms 2 W 1 % 100 PPM / C 1225 (Reversed) 3263 (Reversed)
Ohmite Current Sense Resistors - SMD 2W 0.050 ohm 1%
Datasheet
1,270In Stock
4,000Expected 12/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT 50 mOhms 2 W 1 % 50 PPM / C 1225 (Reversed) 3263 (Reversed)
Ohmite Current Sense Resistors - SMD 5watt 0.001ohm 5% Metal Foil
Datasheet
93In Stock
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: 1,000

SMD/SMT 1 mOhms 5 W 5 % 150 PPM / C 2043 (Reversed) 50110 (Reversed)
Ohmite Current Sense Resistors - SMD 5watt 0.005ohm 1% Metal Foil
Datasheet
783In Stock
4,000Expected 12/14/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT 5 mOhms 5 W 1 % 50 PPM / C 2043 (Reversed) 50110 (Reversed)
Ohmite Current Sense Resistors - SMD 5watt 0.025ohm 1% Metal Foil
Datasheet
532In Stock
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: 1,000

SMD/SMT 25 mOhms 5 W 1 % 50 PPM / C 2043 (Reversed) 50110 (Reversed)
Ohmite Current Sense Resistors - SMD 10W 0.002 OHM 2 %
Datasheet
376In Stock
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: 500

SMD/SMT 2 mOhms 10 W 2 % 100 PPM / C 3059 (Reversed) 75150 (Reversed)
Ohmite Current Sense Resistors - SMD 10W 0.005 OHM 1 %
Datasheet
398In Stock
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: 500

SMD/SMT 5 mOhms 10 W 1 % 100 PPM / C 3059 (Reversed) 75150 (Reversed)
Ohmite Current Sense Resistors - SMD 10W 0.010 OHM 1 %
Datasheet
77In Stock
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: 500

SMD/SMT 10 mOhms 10 W 1 % 100 PPM / C 3059 (Reversed) 75150 (Reversed)
Ohmite Current Sense Resistors - SMD 10W 0.025 OHM 1 %
Datasheet
304In Stock
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: 500

SMD/SMT 20 mOhms 10 W 1 % 100 PPM / C 3059 (Reversed) 75150 (Reversed)
Ohmite Current Sense Resistors - SMD 0.003 ohm 2% 1.0W
Datasheet
4,409In Stock
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: 5,000

SMD/SMT 3 mOhms 1 W 2 % 100 PPM / C 0508 (Reversed) 1220 (Reversed)
Ohmite Current Sense Resistors - SMD 0.005 ohm 1% 1.0W
Datasheet
7,561In Stock
10,000Expected 12/14/2026
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Min.: 1
Mult.: 1
: 5,000

SMD/SMT 5 mOhms 1 W 2 % 100 PPM / C 0508 (Reversed) 1220 (Reversed)
Ohmite Current Sense Resistors - SMD 0.01 ohm 1% 1.0W
Datasheet
6,037In Stock
10,000Expected 12/14/2026
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Min.: 1
Mult.: 1
: 5,000

SMD/SMT 10 mOhms 1 W 1 % 50 PPM / C 0508 (Reversed) 1220 (Reversed)
Ohmite Current Sense Resistors - SMD 0.025 ohm 1% 1.0W
Datasheet
4,142In Stock
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: 5,000

SMD/SMT 15 mOhms 1 W 1 % 50 PPM / C 0508 (Reversed) 1220 (Reversed)
Ohmite Current Sense Resistors - SMD 0.02 ohm 1% 1.0W
Datasheet
5,312In Stock
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: 5,000

SMD/SMT 20 mOhms 1 W 1 % 50 PPM / C 0508 (Reversed) 1220 (Reversed)
Ohmite Current Sense Resistors - SMD 0.03 ohm 1% 1.0W
Datasheet
2,609In Stock
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: 5,000

SMD/SMT 30 mOhms 1 W 1 % 50 PPM / C 0508 (Reversed) 1220 (Reversed)
Ohmite Current Sense Resistors - SMD 0.05 ohm 1% 1.0W
Datasheet
1,151In Stock
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: 5,000

SMD/SMT 50 mOhms 1 W 1 % 50 PPM / C 0508 (Reversed) 1220 (Reversed)
Ohmite Current Sense Resistors - SMD 0.005 ohm 1% 1.5W
Datasheet
8,424In Stock
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: 5,000

SMD/SMT 5 mOhms 1.5 W 1 % 100 PPM / C 0612 (Reversed) 1632 (Reversed)
Ohmite Current Sense Resistors - SMD 0.01 ohm 1% 1.5W
Datasheet
8,500In Stock
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: 5,000

SMD/SMT 10 mOhms 1.5 W 1 % 50 PPM / C 0612 (Reversed) 1632 (Reversed)
Ohmite Current Sense Resistors - SMD 0.02 ohm 1% 1.5W
Datasheet
9,129In Stock
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: 5,000

SMD/SMT 20 mOhms 1.5 W 1 % 50 PPM / C 0612 (Reversed) 1632 (Reversed)
Ohmite Current Sense Resistors - SMD 0.025 ohm 1% 1.5W
Datasheet
3,549In Stock
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: 5,000

SMD/SMT 25 mOhms 1.5 W 1 % 50 PPM / C 0612 (Reversed) 1632 (Reversed)
Ohmite Current Sense Resistors - SMD 0.03 ohm 1% 1.5W
Datasheet
1,118In Stock
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: 5,000

SMD/SMT 30 mOhms 1.5 W 1 % 50 PPM / C 0612 (Reversed) 1632 (Reversed)
Ohmite Current Sense Resistors - SMD 0.05 ohm 1% 1.5W
Datasheet
5,987In Stock
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: 5,000

SMD/SMT 50 mOhms 1.5 W 1 % 50 PPM / C 0612 (Reversed) 1632 (Reversed)