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VRCI T 110 : REV B

Current

Current

The latest, up-to-date edition.

WIREWOUND AND NON-WIREWOUND TRIMMING POTENTIOMETERS

Published date

01-12-2013

PART 1 - TERMS AND DEFINITIONS
1. SYMBOLS AND GENERAL TERMS
    1.1 List of Symbols
          1.1.1 Electrical
          1.1.2 Mechanical
    1.2 General terms
          1.2.1 Trimming Potentiometer
                  1.2.1.1 Wirewound Trimming Potentiometer
                  1.2.1.2 Non-Wirewound Trimming Potentiometer
          1.2.2 Resistance Element
          1.2.3 Adjustment Shaft
                  1.2.3.1 Single Turn Adjustment
                  1.2.3.2 Multiturn Adjustment
          1.2.4 Terminal
                  1.2.4.1 Leadwire Type
                  1.2.4.2 Printed Circuit Terminal
                  1.2.4.3 Solder Lug Terminal
          1.2.5 Wiper
          1.2.6 Stop Clutch
          1.2.7 Stop
          1.2.8 Stacking
          1.2.9 Theoretical Resolution
2. INPUT AND OUTPUT TERMS
    2.1 INPUT TERMS
          2.1.1 Total Applied Voltage
    2.2 Output Terms
          2.2.1 Output Voltage
          2.2.2 Output Ratio (Output Voltage Ratio)
    2.3 Load Terms
          2.3.1 Load Resistance
3. ROTATION AND TRANSLATION
    3.1 Direction of Travel
    3.2 Mechanical Travel
          3.2.1 Mechanical Travel - Solid Stops
          3.2.2 Mechanical Travel - Clutching Action
          3.2.3 Mechanical Travel - Continuous Rotation
    3.3 Adjustment Travel, Electrical
    3.4 Continuity Travel
4. GENERAL ELECTRICAL CHARACTERISTICS
    4.1 Total Resistance
    4.2 Absolute Minimum Resistance
    4.3 End Resistance
    4.4 Temperature Coefficient of Resistance
    4.5 Resistance - Temperature Characteristic
    4.6 Contact Resistance Variation
    4.7 Equivalent Noise Resistance
    4.8 Continuity
    4.9 Setting Stability
    4.10 Dielectric Strength
    4.11 Insulation Resistance
    4.12 Power Rating
    4.13 Life
          4.13.1 Rotational Life
          4.13.2 Load Life
    4.14 Adjustability
5. GENERAL MECHANICAL CHARACTERISTICS
    5.1 Torque
          5.1.1 Starting (Operating) Torque
          5.1.2 Stop Torque
    5.2 Solderability
    5.3 Weldability
    5.4 Terminal Strength
    5.5 Immersion Sealed
PART II - INSPECTION AND TEST PROCEDURES
1. EQUIPMENT DESCRIPTION
    1.1 Mechanical
    1.2 Electrical
2. ROTATION AND TRANSLATION
    2.1 Total Mechanical Travel Stops
    2.2 Total Mechanical Travel-Clutch
    2.3 Adjustment Travel (Electrical)
    2.4 Continuity Travel
3. GENERAL ELECTRICAL CHARACTERISTICS
    3.1 Total Resistance
    3.2 Absolute Minimum Resistance
    3.3 Minimum Voltage
    3.4 End Resistance
    3.5 End Voltage
    3.6 Temperature Coefficient of Resistance
    3.7 Resistance Temperature Characteristics
    3.8 Contact Resistance Variation
    3.9 Equivalent Noise Resistance
    3.10 Continuity
    3.11 Setting Stability
    3.12 Dielectric Withstanding Voltage
    3.13 Insulation Resistance
    3.14 Load Life
    3.15 Rotational Life
    3.16 Adjustability (Output Resistance)
    3.17 Adjustability (Output Voltage Ratio)
4. GENERAL MECHANICAL CHARACTERISTICS
    4.1 Starting Torque
    4.2 Stop Torque
    4.3 Solderability
    4.4 Weldability
    4.5 Terminal Strength
    4.6 Immersion Seal - Non-aqueous cleaning processes
    4.7 Immersion Seal - Aqueous cleaning processes

Provides industry-approved terms and definitions, and preferred inspection and test procedures for wirewound and non-wirewound trimming potentiometers.

DocumentType
Standard
PublisherName
Variable Resistive Components Institute
Status
Current

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