SM-42TA105

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Trimmer potentiometers, such as the SM-42TA105, are widely used components in a wide range of applications. These devices offer precise control of electrical circuits, often serving as a part of the control circuitry of larger electronic systems. This article will discuss the application field and working principle of the SM-42TA105.

The SM-42TA105 is a trimming potentiometer that is designed to provide precise, adjustable voltage division in a wide range of electronic systems. It can be used to control the bias of transistors, various resistors, LED current, and a variety of other electrical functions. It is also used in applications such as volume and tone controls, motor speed control, gain control, and frequency balance.

The SM-42TA105 is a multi-turn trimmer potentiometer with an absolute continuous rated discharge of 3.50A and a maximum voltage of 0.65V. It features a built-in temperature compensation function, as well as a resistance range of 10 ohms to 1 kilo ohm for both linear and audio taper types. It offers high precision and stable performance over a wide temperature range of −20 to +85°C.

The SM-42TA105 is composed of a segmented metal wiper strip attached to a metal housing which is connected, in turn, to a solder terminal. The housing has multiple contacts which contact the segments in proportion to the desired voltage control. As the wiper strip is turned, the metal segments are raised or lowered appropriately, resulting in a corresponding voltage division.

The potentiometer has a rotary knob which is used to adjust the voltage division by turning it clockwise or counterclockwise. When the knob is turned, the wiper strip is pulled up or down, thereby controlling the voltage division of the circuit. The position of the rotary knob corresponds to a specific voltage level which is indicated on the potentiometer dial.

The SM-42TA105 is commonly used in a variety of audio applications, such as for volume and tone control. It is also used in video applications, where it is used to adjust the level of video signals for optimum picture quality. Additionally, it has a broad range of application in telecommunications equipment, motor speed control, and frequency balance.

The SM-42TA105 is a reliable and durable trimmer potentiometer that offers a wide range of uses and applications. Its simple and robust design provide precise voltage division, allowing for precise control and adjustment of electrical circuits. It is an easy to use and highly efficient component for a number of electronic systems. It is also available at a competitive price, making it an ideal choice for many DIY projects.

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