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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Qty. RoHS Termination Style
Resistance
Power Rating
Tolerance
Temperature Coefficient
Case Code - in
Case Code - mm
Ohmite Current Sense Resistors - Through Hole 0.5W .020 ohms 1%
Datasheet
238In Stock
Min.: 1
Mult.: 1
: 1 000

Axial 20 mOhms 500 mW (1/2 W) 1 % 300 PPM / C
Ohmite Current Sense Resistors - Through Hole 0.5W .030 ohms 1%
Datasheet
730In Stock
Min.: 1
Mult.: 1
: 1 000

Axial 30 mOhms 500 mW (1/2 W) 1 % 300 PPM / C
Ohmite Current Sense Resistors - Through Hole 0.5W .050 ohms 1%
Datasheet
255In Stock
Min.: 1
Mult.: 1
: 1 000

Axial 50 mOhms 500 mW (1/2 W) 1 % 100 PPM / C
Ohmite Current Sense Resistors - Through Hole 1W .005 ohms 1%
Datasheet
1 615In Stock
Min.: 1
Mult.: 1
: 1 000

Axial 5 mOhms 1 W 1 % 100 PPM / C
Ohmite Current Sense Resistors - Through Hole 2W .020 ohms 1%
Datasheet
746In Stock
4 000Expected 28/09/2026
Min.: 1
Mult.: 1
: 1 000

Axial 20 mOhms 2 W 1 % 100 PPM / C
Ohmite Current Sense Resistors - SMD 2W 0.015 Ohms 1%
Datasheet
622In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 15 mOhms 2 W 1 % 50 PPM / C 1225 (Reversed) 3263 (Reversed)
Ohmite Current Sense Resistors - SMD 3watt .001ohm 5% Metal Foil
Datasheet
329In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 1 mOhms 3 W 5 % 150 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
: 1 000

SMD/SMT 25 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
: 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
MouseReel Available
Min.: 1
Mult.: 1
: 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
23In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 2 mOhms 4 W 2 % 100 PPM / C 1835 (Reversed) 4590 (Reversed)
Ohmite Current Sense Resistors - SMD 0.015 ohm 0.5% 4W
Datasheet
193In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
465In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 50 mOhms 4 W 0.5 % 50 PPM / C 1835 (Reversed) 4590 (Reversed)
Ohmite Current Sense Resistors - Through Hole 0.5W .015 ohms 1%
Datasheet
250In Stock
Min.: 1
Mult.: 1
: 1 000

Axial 15 mOhms 500 mW (1/2 W) 1 % 300 PPM / C
Ohmite Current Sense Resistors - Through Hole 0.5W .025 ohms 1%
Datasheet
861In Stock
Min.: 1
Mult.: 1
: 1 000

Axial 25 mOhms 500 mW (1/2 W) 1 % 300 PPM / C
Ohmite Current Sense Resistors - Through Hole 0.5W .020 ohms 1%
Datasheet
49In Stock
Min.: 1
Mult.: 1

Axial 20 mOhms 500 mW (1/2 W) 1 % 300 PPM / C
Ohmite Current Sense Resistors - Through Hole 3watts 0.005OHMS 1%
Datasheet
1In Stock
1 633Expected 27/07/2026
Min.: 1
Mult.: 1

Axial 5 mOhms 3 W 1 % 100 PPM / C
Ohmite Current Sense Resistors - Through Hole 3watts 0.02OHMS 1%
Datasheet
1 360Expected 31/08/2026
Min.: 1
Mult.: 1

Axial 20 mOhms 3 W 1 % 50 PPM / C
Ohmite Current Sense Resistors - Through Hole 3watts 0.03OHMS 1%
Datasheet
880On Order
Min.: 1
Mult.: 1

Axial 30 mOhms 3 W 1 % 50 PPM / C
Ohmite Current Sense Resistors - Through Hole 3watt .05ohm 1% 4 Lead Non-Inductive
Datasheet
50Expected 02/09/2026
Min.: 1
Mult.: 1

Radial 50 mOhms 3 W 1 % 60 PPM / C
Ohmite Current Sense Resistors - SMD 0.005 ohm 0.5% 3W
Datasheet
5 501Expected 28/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 5 mOhms 3 W 0.5 % 50 PPM / C 1530 (Reversed) 3876 (Reversed)
Ohmite Current Sense Resistors - SMD 4watt .025ohm 1% Metal Foil
Datasheet
2 000Expected 29/06/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 25 mOhms 4 W 1 % 50 PPM / C 1835 (Reversed) 4590 (Reversed)
Ohmite Current Sense Resistors - SMD 0.02ohm 1% 4 Terminal
Datasheet
19 997On Order
MouseReel Available
Min.: 1
Mult.: 1
: 5 000

SMD/SMT 20 mOhms 500 mW (1/2 W) 1 % 50 PPM / C 1206 3216
Ohmite Current Sense Resistors - SMD 0.002ohm 1% 4 Terminal
Datasheet
13 759On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 2 mOhms 2 W 1 % 200 PPM / C 1224 (Reversed) 3264 (Reversed)