ST4EG103

Series:	ST4
Packaging:	Bulk
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Resistance:	10 kOhms
Power (Watts):	0.25W, 1/4W
Tolerance:	±20%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	1
Adjustment Type:	Side Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	J Lead
Size / Dimension:	Rectangular - 0.197" x 0.177" Face x 0.224" H (5.00mm x 4.50mm x 5.70mm)

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Trimmer Potentiometers

A trimmer potentiometer, also known as a trim pot, is a type of adjustable resistor used for fine-tuning and calibration applications. Trimmer pots are usually used in both analog and digital circuits to calibrate or adjust a specific circuit function such as voltage, current, frequency or a multitude of other parameters. Trimmer potentiometers are available in different form factors and a wide range of values, and they come in both single-turn and multi-turn variations.The ST4EG103 is a single-turn trimmer potentiometer developed by STMicroelectronics. This device is a multi-purpose precision precision trimmer potentiometer featuring a 0.25W rated power, a full scale resistance of 10Kohm, a ±20% tolerance, a 25mV maximum off resistance, a 5V maximum operating voltage, and a 0.0008” (1.0~3.9mm) shaft diameter. This potentiometer is capable of providing accurate and reliable adjustment for analog circuits.

ST4EG103 Application Field

The ST4EG103 is well suited for use in a wide range of applications including capacitive sensors, amplifier controls, power supplies, digital-to-analog converters, voltage regulators, frequency synthesizers, and programmable controllers. This potentiometer is also well-suited for use in low-power circuits such as LED dimmers, optical gain control circuits, photodiode transimpedance amplifiers, and other precision circuits.

ST4EG103 Working Principle

The ST4EG103 trimmer potentiometer functions similarly to a variable resistor. When a voltage is applied to the two terminals of the trimmer potentiometer, current flows through the device according to the resistance of the element. By adjusting the wiper, the user can vary the resistance, which in turn will adjust the output voltage of the circuit. Most trimmer potentiometers have a number of detents or stops along the body so that the user can precisely adjust the output voltage to the desired level.

Conclusion

The ST4EG103 trimmer potentiometer is a precision device designed for use in a wide range of analog and digital circuits. This trimmer functions in the same way as a variable resistor, allowing the user to precisely adjust the output voltage of their circuit. The ST4EG103 is well-suited for use in capacitive sensors, amplifier controls, power supplies, digital-to-analog converters, voltage regulators, frequency synthesizers, and programmable controllers.

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