1/2" (12.7 mm) Single - Turn Wirewound
Bushing Mount Type Precision Potentiometer
Model 140
Vishay Spectrol
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 57097
88 Revision: 28-Jun-07
FEATURES
•Ohmic value range: 50 Ω up to 20 kΩ
•Smallest size available: 12.7 mm
•Mechanical stops on request
•High torque and sealed versions available
RoHS
COMPLIANT
ELECTRICAL SPECIFICATIONS
PARAMETER
Total Resistance 50 Ω to 20 kΩ
To l e ra n c e ± 5 %
Absolute Minimum Resistance Linearity x total resistance or
0.5 Ω, whichever is greater
Linearity (Independent) ± 1.0 %
Noise 100 Ω ENR
Power Rating 2 W at 40 °C ambient derating linearly to zero at 125 °C
Insulation Resistance 1000 MΩ min. 500 VDC
Dielectric Strength 1000 VRMS, 60 Hz
Electrical Angle 320° ± 5°
End Voltage Linearity x total applied voltage for total resistance above 20 Ω;
2.0 % of total applied voltage for 20 Ω and below
MATERIAL SPECIFICATIONS
Shaft Stainless steel, non magnetic
non-passivated
Housing Aluminum, anodized
Rear Lid Molded glass filled
thermoset plastic
Terminals Brass, gold plated
Mounting Hardware
Lockwasher Internal Tooth:
Panel Nut:
Steel, nickel plated.
Brass, nickel plated
ENVIRONMENTAL SPECIFICATIONS
Vibration 20 G thru 2000 Hz
Shock 50 g
Salt Spray 96 h
Rotational Life 500 000
shaft revolutions
Load Life 900 h
Temperature Range - 55 °C to + 125 °C (operating)
ORDERING INFORMATION/DESCRIPTION
140B 0 0 20K BO10
MODEL MECHANICAL OPTIONS SPECIAL FEATURE OHMIC VALUE PACKAGING
0. Stops, slotted shaft (std)
1. Plain shaft
2. Shaft lock
3. Continuous rotation
4. Combination 1 and 2
5. Combination 1 and 3
6. Combination 2 and 3
7. Combination 1, 2 and 3
0. Standard torque
1. Center tap (10K max. Rt)
2. High torque
3. Sealed construction
4. Combination 1 and 2
5. Combination 1 and 3
6. Combination 2 and 3
7. Combination 1, 2 and 3
Box of 10 pieces
SAP PART NUMBERING GUIDELINES
140B 7 0 103 B10
MODEL MECHANICAL OPTION FEATURE OHMIC VALUE PACKAGING
From 0 to 7 From 0 to 7 103 = 10K Box of
10 pieces