Surface Mount Sense Resistors
OARS, 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
Power rating at 25°C
Power rating at 85ºC
Resistance range
Resistance Tolerance
Standard Values
watts
watts
ohms
%
milliohms
nH
°C
amps
amps
°C
2
4
1
2
R002 to R050
R001 to R025
≤
R002: 5, > R002: 1, 5
2, 3, 4, 5, 10, 15, 20, 22, 25, 30, 40, 50
<10
-55 to +160
1, 2, 2.5, 5, 7.5, 10, 20, 25
OARS1
OARS-XP
(Enquire for unlisted values)
Inductance
Ambient temperature range
Current rating at 25°C
Current rating at 85°C
Ambient temperature range
OARS-1Z
65
46
-55 to +160
Comments
Zero-ohm jumper
Physical Data
Dimensions (mm) and recommended solder pads
Type
L
H
3.05
OARS1 >R003, OARS-1Z
±
0.76
11.18
OARS1-R003
OARS1-R002
OARS-XP
* Dependent on ohmic value
±0.38
T
D
±0.76
W
±0.38
a
nom.
b
nom.
c
nom.
d
nom.
4.07
4.45
7.24
9.58
3.18
9.37
3.07
4.83
4.7
3.18
3.56
6.35
11.56
±
0.38
10.7 to
12.0*
3.51
±
0.76
2.28 to
4.57*
2.36
±0.25
3.23
±0.76
±0.76
±0.38
±0.38
4.83
c
a
b
d
c
Issue F .09.07
WELWYN [ WELWYN COMPONENTS LIMITED ]
