0.5 1 2 3
400
300
200
100
0
Temperature (°C)
Power in Watts
X
Y
Z
Low Ohmic For Current Sensing
Type OS Series
Literature No. 1773260
Issued: 09-05
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
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Key Features
■ Small Size Light Weight
■ Easy to Mount
■ Completely Non Inductive
■ Temperature Range
-55°C to +155°C
■ High Power up to 5 Watts
■ High Current up to 14 Amps
■ Custom Designs Welcomed
Type OS Series
The OS Series is designed for current
sensing using a range of low TCR
resistive alloys to create the value and
current capability you require.
The ribbon is welded to 1mm diameter
solid (OFHC) copper leads that are
tin/lead electroplated. The OS is
ideally suited to current detection in
power supply circuits, electric meter
sensing, protection feed back circuits
and a wide range of automotive
positions.
Characteristics -
Electrical
Resistance Value: R005, R01, R015, R022, R025, R033, R047,
R051 (or custom)
Resistance Tolerance: 5%, 10% (tighter by discussion)
Temperature Coefficient of Resistance: Material 20ppm/°C Effective 100ppm/°C over range
Rated Ambient Temperature: +70°C
Operating Temperature Range: - 40°C + 200°C
Load Life @ 125°C: 1000 hours ∆R< ± 2% max.
Temperature Cycling: - 40°C + 125°C 1000 ∆R< ± 2% max.
Moisture No Load: 1000 hours ∆R< ± 1% max.
Pack Quantity: 500 boxed - loose pack
Dimensions
Temperature Rise Curve
Typical Temperature Rise Under
Load Condition Type 0S3
Type S L C ±0.25 P ±0.1 R ±0.1 B ±0.05
OS-1 11.43 5.0±2.5 3.2 1.2 2.0 1.7
OS-3 15.20 25.4 Max 3.2 1.2 2.0 1.7
OS-5 20.30 25.4 Max 3.2 1.2 2.0 1.7
How to Order
OS 3 R01 15 J
Common Part
1 - 1 Watt
3 - 3 Watt
5 - 5 Watt
(Or Custom)
Rated Power
0.01 Ohm
(10 milli Ohm) R01
Resistance Value
Insertion Pitch
OS - Open Wire
Resistor (Radial)
LW - Leaded Wire
(Axial) Resistor
(Custom)
12 - 12mm
15 - 15mm
20 - 20mm
Tolerance
J ±5%
K ±10%
Tighter by Discussion
