ST5TW202

Series:	ST5
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Resistance:	2 kOhms
Power (Watts):	0.25W, 1/4W
Tolerance:	±10%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	14
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	Gull Wing
Size / Dimension:	Rectangular - 0.236" x 0.169" Face x 0.266" H (6.00mm x 4.30mm x 6.75mm)

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Trimmer Potentiometers

Trimmer potentiometers are variable resistors used to modify circuits for accurate settings in parameters such as resistance or voltage. They come in various shapes and sizes and offer a wide range of applications to many areas. ST5TW202, from a company called Bourns, is a popular trimmer potentiometer type.

Application Field

The ST5TW202 is a single-turn trimmer potentiometer with a rotational torque of 0.2Ncm (Nm). It has a width of 8.3mm and a height of 5mm, which makes it one of the smallest trimmers available. With a low temperature coefficient of ±150ppm/°C, and an electrically linear resistance curve, it is designed for applications in audio amplifiers, communication equipment, inverters and line-operated devices.

Working Principle

The principle of operation of a trimmer potentiometer is similar to that of a rotary potentiometer. Inside the trimmer potentiometer, there is a resistor element connected between two terminals and a third, usually adjustable, wiper terminal connected to the fixed resistor element. When the wiper is turned, the resistance between the two terminals changes, allowing for setting of the desired value of resistance. By rotating the dial of a ST5TW202 trimmer potentiometer, the electric resistance between the two terminals can be adjusted between 0 to 50K Ohms. The adjustment can be done in small steps and its range of operation can be selected by rotating to the intended value.

Conclusion

ST5TW202, with its small dimensions, low temperature coefficient and linear resistance, offers a highly reliable and versatile solution for many electrical applications. It is easy to install and adjust, making it a popular choice for a variety of uses ranging from audio amplifiers to inverters.

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