139 L
Vishay Sfernice
Document Number: 54015
Revision 14-Dec-01 www.vishay.com
37
FEATURES
• Measurement Range 25mm to 3000mm
• Long Life
• High Accuracy ± 1% down to ± 0.025%
• Excellent Repeatability
• Essentially Infinite Resolution
• Simple Mounting
• Actuation Tolerant to Some Misalignment
• Reduced Bulk
Theoretical electrical travel (TET = E) from 25mm to 3000mm in increments of 25mm
Independent linearity (over TET) ≤± 1 % - ≤± 0.1 %
on request ≤± 0.05 % for E ≥100mm
≤± 0.025 % for E ≥200mm
Actual electrical travel (AET) AET = E + 1.5mm min.
Ohmic value (RT)400Ω/cm to 2kΩ/cm
Resistance tolerance at 20°C ± 20%
Repeatability ≤0.01%
Maximum power rating 0.05W/cm at 70°C, 0W at 125°C
Wiper current recommended: a few µA, 1mA max. continuous
Load resistance minimum 103 x RT
Insulation resistance ≥1000MΩ500VDC
Dielectric strength ≥1000VRMS 50Hz
Mechanical travel (MT) See dimensions table 1
Housing anodized aluminum
Operating force 2.5N typical
Coupling self alignment
Termination hydraulic type connector DIN 43650
Wiper precious metal multifinger
Sealed to IP53
Mounting movable brackets
The 139 L is a robust industrial linear motion transducer with a
side actuation,
ideally suited for applications with very long
travels.
ELECTRICAL SPECIFICATIONS
Operating life 40 million cycles typical
Temperature range – 55°C + 125°C
Sine vibration on 3 axes 1.5mm peak to peak or 15g - 10Hz - 2000Hz
Mechanical shocks on 3 axes
50g - 11ms - half sine
MECHANICAL SPECIFICATIONS
PERFORMANCE
Precision Linear Transducers, Conductive Plastic (REC)
139 L
Vishay Sfernice
Document Number: 54015
Revision 14-Dec-01
www.vishay.com
38
SERIES
REC
MODEL
139
NUMBER
OF TRACKS
L
L= 1
THEORETICAL
ELECTRICAL TRAVEL
43
Times 25 mm
LINEARITY
D
A: ± 1%
D: ± 0.1%
E: ± 0.05%
F: ± 0.025%
OHMIC VALUE
103
First 2 digits are
significant numbers
3rd digit indicates
number of zeros
MODIFICATIONS
W...
Special feature
code number
ORDERING INFORMATION
DIMENSIONS in millimeters, general tolerance ± 1mm
LENGTH AET MT L
L1 to L20 TET + 1.5 min TET + 7 min. TET + 158 max.
L 21 to L40 TET + 1.5 min. TET + 11 min. TET + 163 max.
L41 to L120 TET + 1.5 min. TET + 15 min. TET + 169 max.
ACCESSORIES ON REQUEST DIMENSIONS in millimeters
Precision Linear Transducers, Conductive Plastic (REC)
TET = Theoretical electrical travel
AET = Actual electrical travel
MT = Mechanical travel
Pin 3: +
Pin 2: Wiper
Pin 1: -
TET
AET
MT
CM
CET
90
M5
L
Movable brackets
12
331.5 51.7
26
Angular clearance
±10°
1+ 4
- 0
26.5 ± 1
18 + 2
- 0
36
61 max.
50
67
Ø 5.2
Female Connector
Vishay’s Reference: 3248610
36 max
48 max
STANDARD MODEL
4. Ground
4
Table 1
