Single-Turn Sealed Cermet Trimmer Potentiometers with Knob Adjustment

Single-turn sealed cermet trimmer potentiometers are used for manual resistance adjustment in calibration and control circuits.
The addition of a knob structure enables finger adjustment without tools, which is beneficial in applications requiring frequent tuning or field calibration.
Sealed construction supports use in industrial environments by reducing exposure to contaminants.

Mechanical and Adjustment Features

Knob-adjustable trimmers provide direct manual control while maintaining compact square form factors.
Multiple terminal configurations allow flexible PCB layout and orientation.

• Single-turn adjustment mechanism
• Knob for finger-operated tuning
• Sealed structure for industrial use
• Multiple terminal style options
• Square package for PCB mounting

Electrical Characteristics

Cermet resistive elements offer stable resistance over temperature and time.
Tolerance options of 5% and 10% support general calibration requirements.
Rotational life is specified at 200 adjustment cycles, which is suitable for applications with limited tuning operations.

• Resistance tolerance: 5% or 10%
• Rotational life: 200 cycles
• Stable resistance characteristics
• Suitable for low-frequency adjustment circuits

Applications

• Industrial control boards
• Analog signal calibration
• Voltage and current adjustment circuits
• Instrumentation and measurement equipment
• Field-adjustable electronic modules

Design Considerations

• Ensure mechanical clearance for knob rotation
• Select terminal configuration based on PCB layout
• Verify adjustment cycle requirements for application
• Consider sealed structure for harsh environments

For ordering, the knob-adjustable version is specified by adding the suffix “T” to the standard part number.
Refer to the TSR-3386 series datasheet for detailed electrical and mechanical specifications.

For design-in support and technical inquiries, please contact:

sales@suntan.com.hk

info@suntan.com.hk