Current Sense Resistors - SMD – Mouser South Africa

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OARS Open Air Sense Resistors

IRC / TT Electronics OARS Open Air Sense Resistors are rated for 1W at 85°C (2W at 25°C) with resistance values from 0.002Ω to 0.05Ω with tolerances down to +1%. They feature TCRs as low as +20ppm/°C and inductance values in the single‐digit nanohenry range. Operating range is ‐40°C to +125°C. IRC / TT Electronics OARS Open Air Sense Resistors offer compliant terminations that allow them to expand and contract with the PC board's thermal cycling, enabling them to meet or exceed the 1000-2000 cycles required by most automotive manufacturers. This thermal cycling stresses the solder joints of conventional flat chip resistors, which can often cause failure. The unique lead form of the OARS resistors provides an inherent advantage in compliance to the mechanical stress caused by thermal cycling. The welded copper terminals in the OARS Open Air Sense Resistors also provide a low resistance terminal to enhance reliable performance for demanding applications.

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Part #

Current Sense Resistors - SMD .05 OHM 1% 2W

OARS1R050FTR-LF
IRC / TT Electronics
1: $1.62
2,528In Stock

Mfr. Part No.
OARS1R050FTR-LF

Mouser Part No
66-OARS1R050FTR-LF

IRC / TT Electronics

Current Sense Resistors - SMD .05 OHM 1% 2W

Learn More

Datasheet

2,528In Stock

Cut Tape

$1.62

$0.93

$0.758

$0.628

Reel

$0.628

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,900

Reel, Cut Tape, MouseReel

OARS

50 mOhms

2 W

1 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD .003 OHM 5%

OARS1R003JLF
BI Technologies / TT Electronics
1: $1.74
383In Stock

Mfr. Part No.
OARS1R003JLF

Mouser Part No
66-OARS1R003JLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD .003 OHM 5%

Learn More

Datasheet

383In Stock

Cut Tape

$1.74

$1.02

$0.913

$0.806

Reel

$0.522

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,900

Reel, Cut Tape, MouseReel

OARS

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.51 mm (0.138 in)

- 40 C

+ 125 C

Metal Element

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 0.015 ohm 1% 2W Sense Resistor

OARS1-R015FI
BI Technologies / TT Electronics
1: $1.95
3,759Expected 2026/04/14

Mfr. Part No.
OARS1-R015FI

Mouser Part No
756-OARS1-R015FI

BI Technologies / TT Electronics

Current Sense Resistors - SMD 0.015 ohm 1% 2W Sense Resistor

Datasheet

3,759Expected 2026/04/14

Cut Tape

$1.95

$1.13

$0.914

$0.684

View

Reel

$0.48

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,800

Reel, Cut Tape, MouseReel

OARS

15 mOhms

2 W

1 %

20 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 55 C

+ 160 C

Metal Element

2 Terminal

SMD/SMT

Current Sense Resistors - SMD 2W 0.005 1%

OARS1R005FLF
BI Technologies / TT Electronics
1: $1.54
14,597On Order

Mfr. Part No.
OARS1R005FLF

Mouser Part No
66-OARS1R005FLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 2W 0.005 1%

Learn More

Datasheet

14,597On Order

Cut Tape

$1.54

$1.02

$0.779

$0.558

View

Reel

$0.488

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,900

Reel, Cut Tape, MouseReel

OARS

5 mOhms

2 W

1 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD .001 OHM 1%

OARSXPR001FLF
BI Technologies / TT Electronics
1: $2.67
2,305Expected 2026/04/15

Mfr. Part No.
OARSXPR001FLF

Mouser Part No
66-OARSXPR001FLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD .001 OHM 1%

Learn More

Datasheet

2,305Expected 2026/04/15

Cut Tape

$2.67

$1.73

$1.35

$1.22

$1.11

Reel

$0.863

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,200

Reel, Cut Tape, MouseReel

OARS

1 mOhms

5 W

1 %

240 PPM / C

12 mm (0.472 in)

6.35 mm (0.25 in)

4.57 mm (0.18 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD .020 OHM 1%

OARSXPR020FLF
BI Technologies / TT Electronics
1: $2.61
2,400Expected 2026/09/29

Mfr. Part No.
OARSXPR020FLF

Mouser Part No
66-OARSXPR020FLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD .020 OHM 1%

Learn More

Datasheet

2,400Expected 2026/09/29

Cut Tape

$2.61

$1.54

$1.35

$1.33

$1.28

Reel

$0.856

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,200

Reel, Cut Tape, MouseReel

OARS

20 mOhms

5 W

1 %

40 PPM / C

12 mm (0.472 in)

6.35 mm (0.25 in)

4.57 mm (0.18 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD .025 OHM 1%

OARSXPR025FLF
BI Technologies / TT Electronics
1: $2.48
3,517Expected 2026/08/28

Mfr. Part No.
OARSXPR025FLF

Mouser Part No
66-OARSXPR025FLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD .025 OHM 1%

Learn More

Datasheet

3,517Expected 2026/08/28

Cut Tape

$2.48

$1.65

$1.29

$1.26

View

Reel

$0.711

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,200

Reel, Cut Tape, MouseReel

OARS

25 mOhms

5 W

1 %

40 PPM / C

12 mm (0.472 in)

6.35 mm (0.25 in)

4.57 mm (0.18 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 0.01 ohm 1% 2W Sense Resistor

OARS1-R010FI
BI Technologies / TT Electronics
1: $1.95
3,766Expected 2026/09/11

Mfr. Part No.
OARS1-R010FI

Mouser Part No
756-OARS1-R010FI

BI Technologies / TT Electronics

Current Sense Resistors - SMD 0.01 ohm 1% 2W Sense Resistor

Datasheet

3,766Expected 2026/09/11

Cut Tape

$1.95

$1.13

$0.914

$0.684

View

Reel

$0.486

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,900

Reel, Cut Tape, MouseReel

OARS

10 mOhms

2 W

1 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 55 C

+ 160 C

Metal Element

2 Terminal

SMD/SMT

Current Sense Resistors - SMD 0.02 ohm 1% 2W Sense Resistor

OARS1-R020FI
BI Technologies / TT Electronics
1: $1.86
3,795Expected 2026/07/03

Mfr. Part No.
OARS1-R020FI

Mouser Part No
756-OARS1-R020FI

BI Technologies / TT Electronics

Current Sense Resistors - SMD 0.02 ohm 1% 2W Sense Resistor

Datasheet

3,795Expected 2026/07/03

Cut Tape

$1.86

$1.07

$0.869

$0.651

View

Reel

$0.456

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,800

Reel, Cut Tape, MouseReel

OARS

20 mOhms

2 W

1 %

20 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 55 C

+ 160 C

Metal Element

2 Terminal

SMD/SMT

Current Sense Resistors - SMD 2W 0.02 Ohms 1%

OARS1R020FLF
BI Technologies / TT Electronics
1: $1.48
3,403Expected 2026/03/20

Mfr. Part No.
OARS1R020FLF

Mouser Part No
66-OARS1R020FLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 2W 0.02 Ohms 1%

Learn More

Datasheet

3,403Expected 2026/03/20

Cut Tape

$1.48

$0.93

$0.716

$0.647

$0.621

Reel

$0.621

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,900

Reel, Cut Tape, MouseReel

OARS

20 mOhms

2 W

1 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 1W 0.02 5%

OARS1R020JLF
BI Technologies / TT Electronics
1: $1.83
1,400Expected 2026/02/18

Mfr. Part No.
OARS1R020JLF

Mouser Part No
66-OARS1R020JLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 1W 0.02 5%

Learn More

Datasheet

1,400Expected 2026/02/18

Cut Tape

$1.83

$1.06

$0.857

$0.641

View

Reel

$0.395

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,900

Reel, Cut Tape, MouseReel

OARS

Metal Element

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 0.005 ohm 1% 2W Sense Resistor

OARS1-R005FI
BI Technologies / TT Electronics
1: $1.83
2,803Expected 2026/03/23

Mfr. Part No.
OARS1-R005FI

Mouser Part No
756-OARS1-R005FI

BI Technologies / TT Electronics

Current Sense Resistors - SMD 0.005 ohm 1% 2W Sense Resistor

Datasheet

2,803Expected 2026/03/23

Cut Tape

$1.83

$1.08

$0.962

$0.59

View

Reel

$0.495

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,800

Reel, Cut Tape, MouseReel

OARS

5 mOhms

2 W

1 %

20 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 55 C

+ 160 C

Metal Element

2 Terminal

SMD/SMT

Current Sense Resistors - SMD 2W 0.002 Ohms 1%

OARS1R002FLF
BI Technologies / TT Electronics
3,800: $0.556
Non-Stocked

Mfr. Part No.
OARS1R002FLF

Mouser Part No
66-OARS1R002FLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 2W 0.002 Ohms 1%

Datasheet

Non-Stocked

Cut Tape

$0.556

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

2 mOhms

2 W

1 %

240 PPM / C

11.56 mm (0.455 in)

3.56 mm (0.14 in)

3.51 mm (0.138 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 2W 2 mOhms '5%

OARS1R002JLF
BI Technologies / TT Electronics
3,800: $0.42
Non-Stocked

Mfr. Part No.
OARS1R002JLF

Mouser Part No
66-OARS1R002JLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 2W 2 mOhms '5%

Datasheet

Non-Stocked

Cut Tape

$0.42

$0.419

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

2 mOhms

2 W

5 %

240 PPM / C

11.56 mm (0.455 in)

3.56 mm (0.14 in)

3.51 mm (0.138 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 1W 0.004 1%

OARS1R004FLF
BI Technologies / TT Electronics
3,800: $0.476
Non-Stocked

Mfr. Part No.
OARS1R004FLF

Mouser Part No
66-OARS1R004FLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 1W 0.004 1%

Learn More

Datasheet

Non-Stocked

Cut Tape

$0.476

$0.464

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

4 mOhms

2 W

1 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 2W 4 mOhms '5%

OARS1R004JLF
BI Technologies / TT Electronics
3,800: $0.452
Non-Stocked

Mfr. Part No.
OARS1R004JLF

Mouser Part No
66-OARS1R004JLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 2W 4 mOhms '5%

Datasheet

Non-Stocked

Cut Tape

$0.452

$0.441

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

2 W

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD .005 OHM 1W 5%

OARS1R005JTR-LF
BI Technologies / TT Electronics
3,800: $0.347
Non-Stocked

Mfr. Part No.
OARS1R005JTR-LF

Mouser Part No
66-OARS1R005JTR-LF

BI Technologies / TT Electronics

Current Sense Resistors - SMD .005 OHM 1W 5%

Learn More

Datasheet

Non-Stocked

Cut Tape

$0.347

$0.327

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

5 mOhms

2 W

5 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD .01 OHM 1W 5%

OARS1R010JTR-LF
BI Technologies / TT Electronics
3,800: $0.297
Non-Stocked

Mfr. Part No.
OARS1R010JTR-LF

Mouser Part No
66-OARS1R010JTR-LF

BI Technologies / TT Electronics

Current Sense Resistors - SMD .01 OHM 1W 5%

Learn More

Datasheet

Non-Stocked

Cut Tape

$0.297

$0.278

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

10 mOhms

2 W

5 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 1W 0.015 5%

OARS1R015JLF
BI Technologies / TT Electronics
3,800: $0.377
Non-Stocked

Mfr. Part No.
OARS1R015JLF

Mouser Part No
66-OARS1R015JLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 1W 0.015 5%

Learn More

Datasheet

Non-Stocked

Cut Tape

$0.377

$0.363

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

15 mOhms

2 W

5 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD .015 OHM 1W 5%

OARS1R015JTR-LF
BI Technologies / TT Electronics
3,800: $0.297
Non-Stocked

Mfr. Part No.
OARS1R015JTR-LF

Mouser Part No
66-OARS1R015JTR-LF

BI Technologies / TT Electronics

Current Sense Resistors - SMD .015 OHM 1W 5%

Learn More

Datasheet

Non-Stocked

Cut Tape

$0.297

$0.278

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

15 mOhms

2 W

5 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 2W 22 mOhms '1%

OARS1R022FLF
BI Technologies / TT Electronics
3,800: $0.412
Non-Stocked

Mfr. Part No.
OARS1R022FLF

Mouser Part No
66-OARS1R022FLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 2W 22 mOhms '1%

Datasheet

Non-Stocked

Cut Tape

$0.412

$0.40

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

2 W

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD .022 OHM 1W 1%

OARS1R022FTR-LF
BI Technologies / TT Electronics
3,800: $0.314
Non-Stocked

Mfr. Part No.
OARS1R022FTR-LF

Mouser Part No
66-OARS1R022FTR-LF

BI Technologies / TT Electronics

Current Sense Resistors - SMD .022 OHM 1W 1%

Learn More

Datasheet

Non-Stocked

Cut Tape

$0.314

$0.295

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

22 mOhms

2 W

1 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 2W 22 mOhms '5%

OARS1R022JLF
BI Technologies / TT Electronics
3,800: $0.386
Non-Stocked

Mfr. Part No.
OARS1R022JLF

Mouser Part No
66-OARS1R022JLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 2W 22 mOhms '5%

Datasheet

Non-Stocked

Cut Tape

$0.386

$0.376

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

2 W

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD 2W 25 mOhms '5%

OARS1R025JLF
BI Technologies / TT Electronics
3,800: $0.386
Non-Stocked

Mfr. Part No.
OARS1R025JLF

Mouser Part No
66-OARS1R025JLF

BI Technologies / TT Electronics

Current Sense Resistors - SMD 2W 25 mOhms '5%

Datasheet

Non-Stocked

Cut Tape

$0.386

$0.376

Min.: 3,800
Mult.: 1,900

Reel: 1,900

Reel

OARS

2 W

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

Current Sense Resistors - SMD .03 OHM 1W 1%

OARS1R030FTR-LF
BI Technologies / TT Electronics
1: $1.86
Non-Stocked Lead-Time 30 Weeks

Mfr. Part No.
OARS1R030FTR-LF

Mouser Part No
66-OARS1R030FTR-LF

BI Technologies / TT Electronics

Current Sense Resistors - SMD .03 OHM 1W 1%

Learn More

Datasheet

Non-Stocked Lead-Time 30 Weeks

Cut Tape

$1.86

$1.07

$0.776

$0.575

Reel

$0.469

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,900

Reel, Cut Tape, MouseReel

OARS

30 mOhms

2 W

1 %

40 PPM / C

11.18 mm (0.44 in)

3.18 mm (0.125 in)

3.05 mm (0.12 in)

- 40 C

+ 125 C

Metal Element

2 Terminal

SMD/SMT

AEC-Q200

OARS Open Air Sense Resistors

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