Series:	ST7
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	2 kOhms
Power (Watts):	0.25W, 1/4W
Tolerance:	±20%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	3
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	Gull Wing
Size / Dimension:	Square - 0.252" L x 0.240" W x 0.134" H (6.40mm x 6.10mm x 3.40mm)

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Trimmer Potentiometers

Trimmer potentiometers are variable resistors with a wide range of uses. They are commonly used for audio signal routing, and also can be used in motor and power control systems. The ST7ETB202 is a trimmer potentiometer with a wide range of applications and working principles.

Application Field

The versatile ST7ETB202 trimmer potentiometer is suitable for a variety of applications. Among these are radio receivers, signal level multipliers and signal mixers. It is also used in industrial control systems, antenna tuning, and power systems. Additionally, it can be used in electronic toys and other consumer product applications. In radio receivers, trimmer potentiometers can be used to adjust the sensitivity of the receiver, or to adjust the bandwidth of a frequency range. They can also be used to attenuate (reduce) the strength of the signal, or to match the signal line impedance. In the industrial control system, trimmer potentiometers are used to adjust the voltage, current, or resistance of an electric system. They are often used to calibrate temperature, pressure and flow sensors, as well as to adjust the filters in a system. Last but not least, trimmer potentiometers are also used in electronic toys and other consumer products. They can be used to adjust the speed of a motor, or to adjust sound and visual elements, such as in gaming systems.

Working principle

The ST7ETB202 trimmer potentiometer consists of a resistive element connected to two terminals (a total of three pins). It can be adjusted using a flathead screwdriver or special rotary tool. As the tool is rotated, the resistance value of the trimmer potentiometer is adjusted. The ST7ETB202 is a “single-turn” trimmer potentiometer, which means that it has one complete rotation of the adjusting screw between the maximum and minimum resistance values. This allows for fine adjustments, but makes it difficult to set exact resistance values. The trimmer potentiometer features a ceramic element which is enclosed in a protective case for safety.

Conclusion

The ST7ETB202 is a versatile trimmer potentiometer which can be used in a wide variety of applications. It uses a single-turn system, allowing for fine adjustments, but making exact values difficult to set. It features a ceramic element and a protective case, providing durability and safety.

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