Surface Mount Sense Resistors

OARS, OARS-XP, OARSZ Series

Flexible leads for thermal expansion

Open-airdesignreducesPCBheating

Values down to 1milliohm

Element TCR ±20ppm/°C

Zero-ohm 65A jumper version

RoHS compliant

Surface Mount Sense Resistors

A

O RS, OARS-XP, OARSZ Series

Flexible leads for thermal expansion

Open-air design reduces PCB heating

Values down to 1mΩ

Element TCR ±20ppm/ºC

Zero-ohm 65A jumper version

RoHS compliant

Electrical Data

OARS1/3

OARS-XP

Power rating at 25ºC

watts

2

4

Power rating at 85ºC

watts

1

2

Resistance range

ohms

R002 to R050

R001 to R025

Resistance Tolerance

%

≤

R002: 5, > R002: 1, 5

Standard Values

(Enquire for unlisted values)

1, 2, 2.5, 5, 7.5, 10, 20, 25

Inductance

nH

<10

Ambient temperature range

°C

-55 to +160

OARS-1Z

Comments

Current rating at 25ºC

amps

65

Current rating at 85ºC

amps

46

Ambient temperature range

°C

-55 to +160

Zero-ohm jumper

Physical Data

Dimensions (mm) and recommended solder pads

Type

L

H

T

D

W

OARS1/3 >R003, OARS-1Z

3.05

OARS1/3 - R003

11.18

±0.38

4.83

±0.76

3.18

±0.38

4.07

OARS1/3 - R002

11.56

3.51

4.7

±0.76

3.56

±0.38

4.45

9.37

3.07

OARS-XP

10.7 to

12.0*

2.28 to

4.57*

2.36

±0.25

4.83

±0.76

6.35

±0.38

7.24

9.58

3.18

3.23

* Dependent on ohmic value

a

b

d

c

c

07.11

Electrical Data

OARS1

OARS3

OARS-XP

Power rating

at 70°C ambient, or 140°C

terminal temperature

watts

2

3

5

Resistance range

ohms

R002 to R050

R002 to R015

R001 to R025

Resistance Tolerance

%

≤ R002: 5, > R002: 1, 5

Standard Values

(Enquire for unlisted values)

milliohms

2, 3, 4, 5, 10, 15, 20,

22, 25, 30, 40, 50

2, 3, 4, 5, 10, 15

Inductance

nH

<10

Ambient temperature range

°C

-55 to +160

OARS-1Z

Comments

amps

65

Zero-ohm jumper

Max residual resistance

milliohms

0.3

Ambient temperature range

°C

-55 to +160

Temperature Derating

OARSZ

OARS1/3/XP

Note: For OARS1/3/XP this relates to power rating, for OARSZ it relates to current rating.

1, 2, 2.5, 5, 7.5,

12.5, 10, 20, 25

Surface Mount Sense Resistors

A

O RS, OARS-XP, OARSZ Series

Flexible leads for thermal expansion

Open-air design reduces PCB heating

Values down to 1mΩ

Element TCR ±20ppm/ºC

Zero-ohm 65A jumper version

RoHS compliant

Electrical Data

OARS1/3

OARS-XP

Power rating at 25ºC

watts

2

4

Power rating at 85ºC

watts

1

2

Resistance range

ohms

R002 to R050

R001 to R025

Resistance Tolerance

%

≤

R002: 5, > R002: 1, 5

Standard Values

(Enquire for unlisted values)

1, 2, 2.5, 5, 7.5, 10, 20, 25

Inductance

nH

<10

Ambient temperature range

°C

-55 to +160

OARS-1Z

Comments

Current rating at 25ºC

amps

65

Current rating at 85ºC

amps

46

Ambient temperature range

°C

-55 to +160

Zero-ohm jumper

Physical Data

Dimensions (mm) and recommended solder pads

Type

L

H

T

D

W

OARS1/3 >R003, OARS-1Z

3.05

OARS1/3 - R003

11.18

±0.38

4.83

±0.76

3.18

±0.38

4.07

OARS1/3 - R002

11.56

3.51

4.7

±0.76

3.56

±0.38

4.45

9.37

3.07

OARS-XP

10.7 to

12.0*

2.28 to

4.57*

2.36

±0.25

4.83

±0.76

6.35

±0.38

7.24

9.58

3.18

3.23

* Dependent on ohmic value

a

b

d

c

c

07.11

Make Possible

Resistors

AllpartsarePb-freeandcomplywithEUDirective2011/65/EU(RoHS2)

11.15

General Note

TT Electronics reserves the right to make changes in product specification without notice or liability.

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

© TT Electronics plc

www.ttelectronicsresistors.com