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)