Current Sense Resistors - SMD

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ULR3N Metal Element Inverse Current Sense Resistor

Welwyn / TT Electronics ULR3N Metal Element Inverse Current Sense Resistors offer an inverse 1225 chip format, 100µΩ to 3mΩ value range, and currents up to 170A. The ultra-low ohmic values support high energy efficiency in the end product and the bulk metal technology withstands high current surges for improved reliability. ULR3N Resistors feature an inverse format that keeps current traces wide, avoiding a current crowding hotspot and improving product reliability. Welwyn / TT Electronics ULR3N Inverse Current Sense Resistors are ideal for power supplies, motor control, and DC-DC converters.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) 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	Minimum Operating Temperature	Maximum Operating Temperature	Technology	Termination	Termination Style	Qualification
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R00025FT2 Welwyn Components / TT Electronics 1: $5.05 2,195In Stock	Mfr. Part No. ULR3N-R00025FT2 Mouser Part No 756-ULR3N-R00025FT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		2,195In Stock	Cut Tape $5.05 $3.10 $2.79 $2.30 Reel $1.67 View $1.97 $1.81 $1.67 $1.58 $1.55 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	250 uOhms	3 W	1 %	350 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R00025JT2 Welwyn Components / TT Electronics 1: $5.06 1,898In Stock	Mfr. Part No. ULR3N-R00025JT2 Mouser Part No 756-ULR3N-R00025JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,898In Stock	Cut Tape $5.06 $3.11 $2.80 $2.31 Reel $1.62 View $1.99 $1.82 $1.62 $1.60 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	250 uOhms	3 W	5 %	350 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0004JT2 Welwyn Components / TT Electronics 1: $5.06 1,935In Stock	Mfr. Part No. ULR3N-R0004JT2 Mouser Part No 756-ULR3N-R0004JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,935In Stock	Cut Tape $5.06 $3.11 $2.80 $2.31 Reel $1.62 View $1.99 $1.82 $1.62 $1.60 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	400 uOhms	3 W	5 %	350 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R001JT2 Welwyn Components / TT Electronics 1: $2.96 102In Stock	Mfr. Part No. ULR3N-R001JT2 Mouser Part No 756-ULR3N-R001JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors	Datasheet	102In Stock	Cut Tape $2.96 $1.81 $1.66 $1.32 Reel $0.869 View $1.11 $0.99 $0.869 $0.838 $0.827 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	1 mOhms	3 W	5 %	250 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0025JT2 Welwyn Components / TT Electronics 1: $2.62 1,244In Stock	Mfr. Part No. ULR3N-R0025JT2 Mouser Part No 756-ULR3N-R0025JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,244In Stock	Cut Tape $2.62 $1.54 $1.39 $1.10 Reel $0.792 View $0.938 $0.86 $0.792 $0.722 $0.69 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	2.5 mOhms	3 W	5 %	100 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0002JT2 Welwyn Components / TT Electronics 1: $5.05 1,008In Stock	Mfr. Part No. ULR3N-R0002JT2 Mouser Part No 756-ULR3N-R0002JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,008In Stock	Cut Tape $5.05 $3.10 $2.79 $2.30 Reel $1.67 View $1.97 $1.81 $1.67 $1.58 $1.55 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	200 uOhms	3 W	5 %	350 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0008FT2 Welwyn Components / TT Electronics 1: $2.98 1,082In Stock	Mfr. Part No. ULR3N-R0008FT2 Mouser Part No 756-ULR3N-R0008FT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,082In Stock	Cut Tape $2.98 $1.82 $1.67 $1.32 View Reel $0.966 $1.11 $0.991 $0.966 $0.966 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	800 uOhms	3 W	1 %	250 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R002JT2 Welwyn Components / TT Electronics 1: $2.64 1,542In Stock	Mfr. Part No. ULR3N-R002JT2 Mouser Part No 756-ULR3N-R002JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,542In Stock	Cut Tape $2.64 $1.55 $1.40 $1.10 Reel $0.688 View $0.94 $0.861 $0.688 $0.68 $0.677 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	2 mOhms	3 W	5 %	100 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0007JT2 Welwyn Components / TT Electronics 1: $2.98 1,800In Stock	Mfr. Part No. ULR3N-R0007JT2 Mouser Part No 756-ULR3N-R0007JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,800In Stock	Cut Tape $2.98 $1.82 $1.67 $1.32 Reel $0.824 View $1.11 $0.991 $0.824 $0.815 $0.809 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	700 uOhms	3 W	5 %	250 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0008JT2 Welwyn Components / TT Electronics 1: $2.98 1,834In Stock	Mfr. Part No. ULR3N-R0008JT2 Mouser Part No 756-ULR3N-R0008JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,834In Stock	Cut Tape $2.98 $1.82 $1.67 $1.32 Reel $0.824 View $1.11 $0.991 $0.824 $0.815 $0.813 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	800 uOhms	3 W	5 %	250 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0009JT2 Welwyn Components / TT Electronics 1: $2.98 1,942In Stock	Mfr. Part No. ULR3N-R0009JT2 Mouser Part No 756-ULR3N-R0009JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,942In Stock	Cut Tape $2.98 $1.82 $1.67 $1.32 Reel $0.824 View $1.11 $0.991 $0.824 $0.815 $0.813 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	900 uOhms	3 W	5 %	250 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R00075FT2 Welwyn Components / TT Electronics 1: $2.98 1,994In Stock	Mfr. Part No. ULR3N-R00075FT2 Mouser Part No 756-ULR3N-R00075FT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,994In Stock	Cut Tape $2.98 $1.82 $1.67 $1.32 Reel $0.985 View $1.11 $0.991 $0.985 $0.966 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	750 uOhms	3 W	1 %	250 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0005JT2 Welwyn Components / TT Electronics 1: $2.98 1,489In Stock	Mfr. Part No. ULR3N-R0005JT2 Mouser Part No 756-ULR3N-R0005JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,489In Stock	Cut Tape $2.98 $1.82 $1.67 $1.32 Reel $0.824 View $1.11 $0.991 $0.824 $0.815 $0.813 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	500 uOhms	3 W	5 %	300 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0003JT2 Welwyn Components / TT Electronics 1: $5.05 1,949In Stock	Mfr. Part No. ULR3N-R0003JT2 Mouser Part No 756-ULR3N-R0003JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,949In Stock	Cut Tape $5.05 $3.10 $2.79 $2.30 Reel $1.67 View $1.97 $1.81 $1.67 $1.58 $1.55 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	300 uOhms	3 W	5 %	350 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0004FT2 Welwyn Components / TT Electronics 1: $5.06 82In Stock	Mfr. Part No. ULR3N-R0004FT2 Mouser Part No 756-ULR3N-R0004FT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors	Datasheet	82In Stock	Cut Tape $5.06 $3.11 $2.80 $2.31 Reel $1.82 View $2.09 $1.82 $1.81 $1.66 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	400 uOhms	3 W	1 %	350 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0009FT2 Welwyn Components / TT Electronics 1: $2.98 158In Stock	Mfr. Part No. ULR3N-R0009FT2 Mouser Part No 756-ULR3N-R0009FT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		158In Stock	Cut Tape $2.98 $1.82 $1.67 $1.32 View Reel $0.966 $1.11 $1.08 $0.966 $0.966 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	900 uOhms	3 W	1 %	250 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0015JT2 Welwyn Components / TT Electronics 1: $2.62 180In Stock	Mfr. Part No. ULR3N-R0015JT2 Mouser Part No 756-ULR3N-R0015JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		180In Stock	Cut Tape $2.62 $1.54 $1.39 $1.10 Reel $0.741 View $0.938 $0.86 $0.741 $0.70 $0.69 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	1.5 mOhms	3 W	5 %	100 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R003JT2 Welwyn Components / TT Electronics 1: $2.62 859In Stock	Mfr. Part No. ULR3N-R003JT2 Mouser Part No 756-ULR3N-R003JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		859In Stock	Cut Tape $2.62 $1.54 $1.39 $1.10 Reel $0.741 View $0.938 $0.86 $0.741 $0.70 $0.69 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	3 mOhms	3 W	5 %	100 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0001JT2 Welwyn Components / TT Electronics 1: $5.05 1,999Expected 19/10/2026	Mfr. Part No. ULR3N-R0001JT2 Mouser Part No 756-ULR3N-R0001JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		1,999Expected 19/10/2026	Cut Tape $5.05 $3.10 $2.79 $2.30 Reel $1.67 View $1.97 $1.81 $1.67 $1.58 $1.55 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	100 uOhms	3 W	5 %	500 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R00075JT2 Welwyn Components / TT Electronics 2,000: $0.966 Non-Stocked	Mfr. Part No. ULR3N-R00075JT2 Mouser Part No 756-ULR3N-R00075JT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors		Non-Stocked	Reel $0.966	Min.: 2,000 Mult.: 2,000 : 2,000	Reel	ULR	750 uOhms	3 W	5 %	250 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200
Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 ULR3N-R0025FT2 Welwyn Components / TT Electronics 1: $2.62 Non-Stocked Lead-Time 21 Weeks	Mfr. Part No. ULR3N-R0025FT2 Mouser Part No 756-ULR3N-R0025FT2	Welwyn Components / TT Electronics	Current Sense Resistors - SMD Metal Element CS Resistor AEC-Q200 Learn More about Welwyn Components / TT Electronics welwyn tt electronics ulr3n resistors	Datasheet	Non-Stocked Lead-Time 21 Weeks	Cut Tape $2.62 $1.54 $1.39 $1.10 Reel $0.792 View $0.938 $0.86 $0.792 $0.722 $0.69 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Reel, Cut Tape, MouseReel	ULR	2.5 mOhms	3 W	1 %	100 PPM / C	1225 (Reversed)	3263 (Reversed)	- 55 C	+ 170 C	Metal Element	2 Terminal	SMD/SMT	AEC-Q200

ULR3N Metal Element Inverse Current Sense Resistor

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