ST32ETH204

Series:	ST-32
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	200 kOhms
Power (Watts):	0.125W, 1/8W
Tolerance:	±20%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	1
Adjustment Type:	Side Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	Gull Wing
Size / Dimension:	Square - 0.142" L x 0.138" W x 0.185" H (3.60mm x 3.50mm x 4.70mm)

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Trimmer Potentiometers: ST32ETH204 Application Field and Working PrincipleTrimmer potentiometers, also known as adjustable or preset potentiometers, are composed of three flexible terminals, two of which are adjustable. They are versatile but less reliable than fixed potentiometers. The ST32ETH204 is a specific model of trimmer potentiometer that fits into a range of contexts. This article will explain the application field and working principle of this model.Application FieldTrimmer potentiometers are primarily used in applications where the required resistance setting needs to be adjusted or precisely set. Since most trimmer potentiometers are able to gain and hold accuracy over long periods of time, they are widely used in environment where intermittent or continuous adjustment is required. This includes radios, TVs, amplifiers, modems, navigation units, air control systems, and a range of industrial equipment.The ST32ETH204 model of trimmer potentiometer is used in applications that require high-reliability over prolonged periods of time. This includes both electronic and industrial circuit boards. The rotary motion of the trimmer controls the electrical resistance of the ST32ETH204, ensuring that its electric current distribution remains precise and stable for even the most demanding applications.Working PrincipleTrimmer potentiometers are comprised of a single wiper element which is typically made of a conductive metal, such as gold or silver. This wiper terminals acts like a switch, and adjusts the circuit’s resistance when it is rotated. This creates a voltage division which is the source of the resistance correspondingly.The ST32ETH204 model is a rotary trimmer potentiometer and its working principle is based on the principle known as the “Law of Variable Resistors”. This principle states that, by adjusting the position of the wiper, the electrical resistance between two points in an electric circuit can be varied or adjusted. The ST32ETH204 is designed with a range of 5 to 50kΩ resistance. It has a mechanical resistance of 10 turns and can be mechanically adjusted for precise settings.ConclusionThe ST32ETH204 trimmer potentiometer is commonly used in industrial or electronic applications that require high-reliability and the ability to maintain accurate resistance settings over long periods of time. It works on the basis of the “Law of Variable Resistors” and operates with a single wiper element that rotates in order to vary the electrical resistance between two points in an electric circuit. Thanks to this model’s wide resistance range and adjustable settings, it is a popular choice for the most demanding and precise applications.

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