SM-42W101

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The SM-42W101 is a trimmer potentiometer which offers an adjustable resistance range between 50 to 100K ohms. It is a two-terminal voltage divider with a well-defined 3- or 5-position switch. It is ideal for controlling the voltage in voltage regulator circuits, audio applications, and general factory automation.The SM-42W101 is a miniature, dual in line package (DIP) designed to fit into tight spaces, with a lead pitch of 0.4 mm and an operating temperature range of -40°C to 125°C. It also has a low-temperature coefficient, which ensures that the electrical characteristics remain consistent in extreme environmental conditions.The use of a trimmer potentiometer is intensive and varied in various electrical and electronic applications. It is a versatile device capable of controlling a wide range of voltages, amplitudes, currents, and waveforms. Furthermore, SM-42W101 can control multiple circuits at the same time and is known for its excellent long-term stability and reliability. It also has low dissipation power, making it ideal for energy-saving applications. The SM-42W101 has a single contact wiper which, when connected, slides along a circular helical track cut into a circular disc. This contact is connected to a resistance element and is adjustable when the actuator is rotated to the desired resistance value. This helical electrical connection between the contact and the resistance element produces an adjustable electrical resistance which is the basic operating principle of a trimmer potentiometer.The SM-42W101 trimmer potentiometer\'s application field are in motor control circuits, analog to digital conversion, motor monitoring, digital process control, power supplies and amplifiers. It is also often used in circuits where the setting must be adjusted such as timing circuits for a delay, gain control, brightness control, phase control, audio level control, or thermostats.In addition, the SM-42W101 is designed with an excellent temperature resistance, superior heat dissipation, and wide voltage and current ranges, making it suitable for any application. It is a single-turn, carbon-film trimmer potentiometer with tolerances ranging from 0.5% to 5%, making it highly accurate and precise. In terms of operation, the SM-42W101 consists of a contact moving on a pre-set resistance track and the resistance changes as the contact is moved. It is a single-turn device, which means that the position is adjustable through one full rotation, providing a variable resistance range between 50 and 100K ohms. When the user rotates the actuator, the resistance increases as the contact is moved away from the center. This is because as the contact moves outward, it passes over an increasing number of resistance elements, resulting in a linear increase in resistance. Overall, the SM-42W101 trimmer potentiometer is a high precision, low-cost device designed for applications such as voltage regulation, motor control, analog to digital conversion, digital process control, and amplifiers. It has an adjustable resistance range between 50 and 100K ohms and is a two-terminal voltage divider with a well-defined 3- or 5-position switch. It is a single-turn, carbon-film trimmer potentiometer with tolerances ranging from 0.5% to 5%, making it highly accurate and precise.

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