TC89P-1-202

Series:	Trimpot® TC89 - Open Frame
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Resistance:	2 kOhms
Power (Watts):	0.5W, 1/2W
Tolerance:	±20%
Temperature Coefficient:	±250ppm/°C
Number of Turns:	1
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Through Hole
Termination Style:	PC Pins
Size / Dimension:	Rectangular - 0.453" x 0.346" Face x 0.335" H (11.50mm x 8.80mm x 8.50mm)

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Trimmer Potentiometers - TC89P-1-202 Application Field and Working Principle

Trimmer potentiometers, normally referred to as trimmers, are components used to adjust the resistance value in circuits. They are excellent for high-precision, low-cost static applications requiring low-current circuit designs. In this article, we will discuss the application field and working principle of a TC89P-1-202 trimmer potentiometer.

Application Field

TC89P-1-202 trimmer potentiometers are typically used for supplying a variable resistance in normal and light-load circuits such as volume controls, DC adjustable bias, pulse width modulation, digital-analog conversion, and temperature compensation. Their slim design and low-power requirement make them ideal for space-constrained designs and very low-power circuit designs.

Working Principle

TC89P-1-202 trimmer potentiometers are designed with two main components: a conductive element and a counter-conductive element. The conductive element has a circular motion driven by a knob, which allows the position of the counter-conductive element to be adjusted. When the position of the counter-conductive element is changed, the total resistance value changes. The resistance of TC89P-1-202 trimmer potentiometers is determined by two factors: the total number of turns and the area of the counter-conductive element. The total number of turns is determined by the size of the conductive element; the greater the number of turns, the higher the resistance value. The size of the counter-conductive element affects the amount of the current flowing through the trimmer potentiometer; the larger the counter-conductive element, the greater the current flowing through the trimmer potentiometer. Moreover, the resistance range of a TC89P-1-202 trimmer potentiometer depends on the range provided by the manufacturer; typically, it varies from 0.5 ohms to 1.5 megohms. Moreover, the tolerance of the resistance values is ±20% of the nominal value.

Conclusion

TC89P-1-202 trimmer potentiometers are specifically designed for providing adjustable resistive power in space-constrained applications. They are the ideal choice for precision circuits because of their low power consumption and low-cost design. The resistance value of the trimmer potentiometer is determined by the number of turns and the size of the counter-conductive element. The resistance range of a TC89P-1-202 typically varies from 0.5 ohms to 1.5 megohms and has a tolerance of ±20%.

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