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 - 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
94In 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 - SMD 0.02ohm 1% 4 Terminal
Datasheet
875In Stock
15 000On 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 0.047ohm 1% 4 Terminal
Datasheet
1 157In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5 000

SMD/SMT 47 mOhms 500 mW (1/2 W) 1 % 50 PPM / C 1206 3216
Ohmite Current Sense Resistors - SMD 0.05ohm 1% 4 Terminal
Datasheet
417In Stock
25 000Expected 4/19/2027
MouseReel Available
Min.: 1
Mult.: 1
: 5 000

SMD/SMT 50 mOhms 500 mW (1/2 W) 1 % 50 PPM / C 1206 3216
Ohmite Current Sense Resistors - SMD 0.02ohm 1% 4 Terminal
Datasheet
984In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 20 mOhms 750 mW (3/4 W) 1 % 50 PPM / C 2010 5025
Ohmite Current Sense Resistors - SMD 0.027ohm 1% 4 Terminal
Datasheet
670In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 27 mOhms 750 mW (3/4 W) 1 % 50 PPM / C 2010 5025
Ohmite Current Sense Resistors - SMD 0.03ohm 1% 4 Terminal
Datasheet
989In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 30 mOhms 750 mW (3/4 W) 1 % 50 PPM / C 2010 5025
Ohmite Current Sense Resistors - SMD 0.039ohm 1% 4 Terminal
Datasheet
712In Stock
1 000Expected 5/3/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 39 mOhms 750 mW (3/4 W) 1 % 50 PPM / C 2010 5025
Ohmite Current Sense Resistors - SMD 0.05ohm .5% 4 Terminal
Datasheet
2 031In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 50 mOhms 750 mW (3/4 W) 0.5 % 50 PPM / C 2010 5025
Ohmite Current Sense Resistors - SMD 0.05ohm 1% 4 Terminal
Datasheet
935In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 50 mOhms 750 mW (3/4 W) 1 % 50 PPM / C 2010 5025
Ohmite Current Sense Resistors - SMD .012ohm 1% 4 Terminal
Datasheet
593In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 12 mOhms 1 W 1 % 50 PPM / C 2412 6432
Ohmite Current Sense Resistors - SMD .015ohm 1% 4 Terminal
Datasheet
890In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 15 mOhms 1 W 1 % 50 PPM / C 2412 6432
Ohmite Current Sense Resistors - SMD 0.03ohm 1% 4 Terminal
Datasheet
178In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 30 mOhms 1 W 1 % 50 PPM / C 2412 6432
Ohmite Current Sense Resistors - SMD 0.05ohm .5% 4 Terminal
Datasheet
1 007In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 50 mOhms 1 W 0.5 % 50 PPM / C 2412 6432
Ohmite Current Sense Resistors - SMD 0.05ohm 1% 4 Terminal
Datasheet
1 273In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

SMD/SMT 50 mOhms 1 W 1 % 50 PPM / C 2412 6432
Ohmite Current Sense Resistors - SMD 1W 0.01 ohm 1%
Datasheet
3 429In Stock
25 000Expected 12/14/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5 000

SMD/SMT 10 mOhms 1 W 1 % 50 PPM / C 1307 3317
Ohmite Current Sense Resistors - SMD 1W 0.025 ohm 1%
Datasheet
3 055In Stock
5 000Expected 11/16/2026
MouseReel Available
Min.: 1
Mult.: 1
: 5 000

SMD/SMT 25 mOhms 1 W 1 % 50 PPM / C 1307 3317
Ohmite Current Sense Resistors - SMD 2W 0.015 ohm 1%
Datasheet
843In Stock
12 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 4 000

SMD/SMT 15 mOhms 2 W 1 % 50 PPM / C 2512 6432
Ohmite Current Sense Resistors - SMD 2W 0.02 ohm 1%
Datasheet
2 457In Stock
20 000Expected 12/31/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4 000

SMD/SMT 20 mOhms 2 W 1 % 50 PPM / C 2512 6432
Ohmite Current Sense Resistors - SMD 2W 0.025 ohm 1%
Datasheet
2 972In Stock
4 000Expected 12/24/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4 000

SMD/SMT 25 mOhms 2 W 1 % 50 PPM / C 2512 6432
Ohmite Current Sense Resistors - SMD 2W 0.05 ohm 1%
Datasheet
1 635In Stock
20 000Expected 2/8/2027
MouseReel Available
Min.: 1
Mult.: 1
: 4 000

SMD/SMT 50 mOhms 2 W 1 % 50 PPM / C 2512 6432
Ohmite Current Sense Resistors - SMD 1watt .01ohm .5% SMD Wirewound
Datasheet
8In Stock
Min.: 1
Mult.: 1

SMD/SMT 10 mOhms 1 W 0.5 % 50 PPM / C 4224 10862
Ohmite Current Sense Resistors - SMD 1watt .01ohm 1% SMD Wirewound
Datasheet
93In Stock
Min.: 1
Mult.: 1

SMD/SMT 10 mOhms 1 W 1 % 50 PPM / C 4224 10862
Ohmite Current Sense Resistors - SMD 1watt .025ohm .5% SMD Wirewound
Datasheet
34In Stock
Min.: 1
Mult.: 1

SMD/SMT 25 mOhms 1 W 0.5 % 50 PPM / C 4224 10862