The TMC3K-B20K-TR is a cermet trimming potentiometer produced by Noble. This component functions as an adjustable resistor within electronic circuits, enabling precise calibration and fine-tuning. The 'B' designation denotes a linear taper, signifying a direct proportionality between the adjustment angle and the resulting resistance change. The '20K' indicates a total resistance value of 20 kiloohms.

Applications

• Calibration of measuring instruments
• Setting the output voltage of DC-DC converters
• Adjusting the bias current of transistors
• Tuning the frequency of LC oscillators
• Controlling the brightness of displays

Features

• Cermet element ensuring high stability over time and temperature
• Linear taper providing predictable resistance adjustment
• Small footprint suitable for high-density circuit designs
• Through-hole termination for secure PCB mounting
• Sealed design protecting the element from dust and humidity
• Tape and reel packaging for automated pick and place

Benefits

• Allows precise control over circuit parameters
• Maintains stable performance under varying conditions
• Simplifies integration into existing circuit layouts
• Offers dependable operation in demanding environments
• Reduces maintenance due to extended operational life

Additional Details

The TMC3K series trimmers are known for their rugged construction and their ability to maintain their resistance setting even when exposed to wide temperature variations and mechanical stress. The cermet resistive element offers excellent long-term stability and a high power dissipation capability for its physical size. The sealed housing provides protection against environmental contaminants, ensuring reliable performance. It is designed for through-hole mounting which gives a strong mechanical connection to the circuit board. The linear taper makes adjustment straightforward and predictable. The TMC3K-B20K-TR has a resistance of 20 kilohms and comes in tape and reel format for efficient assembly.