Current Sense Resistors - SMD

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RW1/RW2 Four-Terminal Current Resistors

Ohmite RW1/RW2 SMT Four-Terminal Current Sense Resistors feature extremely low resistance of 5mΩ to 50mΩ. These resistors offer high precision tolerance and low TCR of ±50ppm/°C. The modules come in a flameproof UL 94V-0 black body with white markings. Ohmite RW1/RW2 SMT Four-Terminal Current Sense Resistors operate in a temperature range of -55°C to +125°C.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Packaging	Series	Resistance	Power Rating	Tolerance	Temperature Coefficient	Case Code - in	Case Code - mm	Length	Width	Height	Minimum Operating Temperature	Maximum Operating Temperature	Technology	Termination	Termination Style
Current Sense Resistors - SMD 1watt .01ohm .5% SMD Wirewound RW1S0CKR010DET Ohmite 1: $10.343 723In Stock	Mfr. Part # RW1S0CKR010DET Mouser Part # 588-RW1S0CKR010DET	Ohmite	Current Sense Resistors - SMD 1watt .01ohm .5% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	723In Stock	Cut Tape $10.343 $7.148 $6.280 $5.742 Reel $4.370 View $5.281 $4.776 $4.381 $4.260 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	RW1	10 mOhms	1 W	0.5 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .05ohm 1% SMD Wirewound RW1S0CKR050FET Ohmite 1: $9.761 200In Stock	Mfr. Part # RW1S0CKR050FET Mouser Part # 588-RW1S0CKR050FET	Ohmite	Current Sense Resistors - SMD 1watt .05ohm 1% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	200In Stock	Cut Tape $9.761 $6.730 $5.918 $5.402 Reel $4.183 View $4.963 $4.491 $4.458 $3.854 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	RW1	50 mOhms	1 W	1 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .005ohm .5% SMD Wirewound RW1S0CKR005DET Ohmite 1: $10.343 145In Stock 2.000Expected 12/28/2026	Mfr. Part # RW1S0CKR005DET Mouser Part # 588-RW1S0CKR005DET	Ohmite	Current Sense Resistors - SMD 1watt .005ohm .5% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	145In Stock 2.000Expected 12/28/2026	Cut Tape $10.343 $7.148 $6.280 $5.742 View Reel $4.458 $5.281 $4.776 $4.458 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	RW1	5 mOhms	1 W	0.5 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .01ohm 1% SMD Wirewound RW1S0CKR010FE Ohmite 1: $7.642 93In Stock	Mfr. Part # RW1S0CKR010FE Mouser Part # 588-RW1S0CKR010FE	Ohmite	Current Sense Resistors - SMD 1watt .01ohm 1% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	93In Stock	$7.642 $5.962 $5.523 $5.358 View $5.182 $5.007 $4.897 $4.820	Min.: 1 Mult.: 1	Bulk	RW1	10 mOhms	1 W	1 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .01ohm 1% SMD Wirewound RW1S0CKR010FET Ohmite 1: $9.761 171In Stock	Mfr. Part # RW1S0CKR010FET Mouser Part # 588-RW1S0CKR010FET	Ohmite	Current Sense Resistors - SMD 1watt .01ohm 1% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	171In Stock	Cut Tape $9.761 $6.730 $5.918 $5.402 Reel $4.249 View $4.963 $4.491 $4.458 $4.183 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	RW1	10 mOhms	1 W	1 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .025ohm .5% SMD Wirewound RW1S0CKR025DE Ohmite 1: $8.048 34In Stock	Mfr. Part # RW1S0CKR025DE Mouser Part # 588-RW1S0CKR025DE	Ohmite	Current Sense Resistors - SMD 1watt .025ohm .5% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	34In Stock	$8.048 $7.576 $7.027 $5.687 View $5.512 $5.325 $5.215 $5.127	Min.: 1 Mult.: 1	Bulk	RW1	25 mOhms	1 W	0.5 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .025ohm 1% SMD Wirewound RW1S0CKR025FE Ohmite 1: $10.892 33In Stock	Mfr. Part # RW1S0CKR025FE Mouser Part # 588-RW1S0CKR025FE	Ohmite	Current Sense Resistors - SMD 1watt .025ohm 1% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	33In Stock	$10.892 $7.532 $6.676 $6.192 View $5.896 $5.819 $5.753 $5.687	Min.: 1 Mult.: 1	Bulk	RW1	25 mOhms	1 W	1 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .05ohm .5% SMD Wirewound RW1S0CKR050DET Ohmite 1: $10.343 77In Stock	Mfr. Part # RW1S0CKR050DET Mouser Part # 588-RW1S0CKR050DET	Ohmite	Current Sense Resistors - SMD 1watt .05ohm .5% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	77In Stock	Cut Tape $10.343 $7.148 $6.280 $5.742 Reel $4.535 View $5.281 $4.776 $4.480 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	RW1	50 mOhms	1 W	0.5 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .005ohm .5% SMD Wirewound RW1S0CKR005DE Ohmite 1: $8.048 95Expected 2/18/2027	Mfr. Part # RW1S0CKR005DE Mouser Part # 588-RW1S0CKR005DE	Ohmite	Current Sense Resistors - SMD 1watt .005ohm .5% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	95Expected 2/18/2027	$8.048 $5.665 $5.369 $5.325 View $5.292 $5.215 $5.127	Min.: 1 Mult.: 1	Bulk	RW1	5 mOhms	1 W	0.5 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .005ohm 1% SMD Wirewound RW1S0CKR005FE Ohmite 1: $13.505 Non-Stocked Lead-Time 22 Weeks	Mfr. Part # RW1S0CKR005FE Mouser Part # 588-RW1S0CKR005FE	Ohmite	Current Sense Resistors - SMD 1watt .005ohm 1% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	Non-Stocked Lead-Time 22 Weeks	$13.505 $7.477 $7.203 $6.302 View $5.567 $5.523 $5.095	Min.: 1 Mult.: 1	Bulk	RW1	5 mOhms	1 W	1 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .005ohm 1% SMD Wirewound RW1S0CKR005FET Ohmite 1.000: $4.447 Non-Stocked Lead-Time 22 Weeks	Mfr. Part # RW1S0CKR005FET Mouser Part # 588-RW1S0CKR005FET	Ohmite	Current Sense Resistors - SMD 1watt .005ohm 1% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	Non-Stocked Lead-Time 22 Weeks	Reel $4.447 $4.436	Min.: 1.000 Mult.: 1.000 : 1.000	Reel	RW1	5 mOhms	1 W	1 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .01ohm .5% SMD Wirewound RW1S0CKR010DE Ohmite 1: $8.531 Non-Stocked Lead-Time 22 Weeks	Mfr. Part # RW1S0CKR010DE Mouser Part # 588-RW1S0CKR010DE	Ohmite	Current Sense Resistors - SMD 1watt .01ohm .5% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	Non-Stocked Lead-Time 22 Weeks	$8.531 $6.698 $6.203 $6.028 View $5.841 $5.643 $5.523 $5.435	Min.: 1 Mult.: 1	Bulk	RW1	10 mOhms	1 W	0.5 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .025ohm .5% SMD Wirewound RW1S0CKR025DET Ohmite 1: $10.343 Non-Stocked Lead-Time 22 Weeks	Mfr. Part # RW1S0CKR025DET Mouser Part # 588-RW1S0CKR025DET	Ohmite	Current Sense Resistors - SMD 1watt .025ohm .5% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	Non-Stocked Lead-Time 22 Weeks	Cut Tape $10.343 $7.148 $6.280 $5.742 Reel $4.535 View $5.281 $4.776 $4.480 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Reel, Cut Tape, MouseReel	RW1	25 mOhms	1 W	0.5 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .025ohm 1% SMD Wirewound RW1S0CKR025FET Ohmite 1.000: $4.161 Non-Stocked Lead-Time 22 Weeks	Mfr. Part # RW1S0CKR025FET Mouser Part # 588-RW1S0CKR025FET	Ohmite	Current Sense Resistors - SMD 1watt .025ohm 1% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	Non-Stocked Lead-Time 22 Weeks	Reel $4.161	Min.: 1.000 Mult.: 1.000 : 1.000	Reel	RW1	25 mOhms	1 W	1 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .05ohm .5% SMD Wirewound RW1S0CKR050DE Ohmite 1: $8.531 Non-Stocked Lead-Time 22 Weeks	Mfr. Part # RW1S0CKR050DE Mouser Part # 588-RW1S0CKR050DE	Ohmite	Current Sense Resistors - SMD 1watt .05ohm .5% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	Non-Stocked Lead-Time 22 Weeks	$8.531 $6.698 $6.203 $6.028 View $5.841 $5.643 $5.523 $5.435	Min.: 1 Mult.: 1	Bulk	RW1	50 mOhms	1 W	0.5 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT
Current Sense Resistors - SMD 1watt .05ohm 1% SMD Wirewound RW1S0CKR050FE Ohmite 1: $8.092 Non-Stocked Lead-Time 22 Weeks	Mfr. Part # RW1S0CKR050FE Mouser Part # 588-RW1S0CKR050FE	Ohmite	Current Sense Resistors - SMD 1watt .05ohm 1% SMD Wirewound Learn More about Ohmite RW1 RW2 resistors	Datasheet	Non-Stocked Lead-Time 22 Weeks	$8.092 $6.324 $5.852 $5.687 View $5.501 $5.303 $5.193 $5.105 $5.095	Min.: 1 Mult.: 1	Bulk	RW1	50 mOhms	1 W	1 %	50 PPM / C	4224	10862	10.8 mm (0.425 in)	6.2 mm (0.244 in)	2.1 mm (0.083 in)	- 55 C	+ 125 C	Wirewound	4 Terminal	SMD/SMT

RW1/RW2 Four-Terminal Current Resistors

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