SM31TA504

Trimmer Potentiometers

The SM31TA504 is a trimmer potentiometer, which is a three-terminal resistor with a rotating or sliding contact used to adjust the magnitude of an electrical signal, typically voltage and current. The device brings a variety of different features and advantages over other types of variable resistors, from precision and stability through to being unaffected by vibration and wide compatibility.

Application Field

Trimmer potentiometers are mainly used for precision adjustment of an electronic circuit. These devices are often used in voltage regulation in the power supply circuit, and stabilization of current output in the power amplifier circuit, making them suitable for applications such as Audio-frequency, RF amplifiers, TV sound and medical machinery.

The SM31TA504 trimmer potentiometer is mainly used as an adjustable resistor, which can meet the needs of low-power, low-current and medium-frequency circuits. It is suitable for various automatic adjustment and electronic instruments due to its high precision, stability and anti-vibration.

Working Principle

Trimmer potentiometers are designed for finer adjustment of voltage, current or resistance, providing more precise control than other types of variable resistors. There is a shaft mounted on the device that can be used to control the output of the device. By changing the orientation of the shaft, the resistance between the electrodes can be adjusted to accurately adjust the output.

The output of the SM31TA504 is a 3-terminal device. When the adjustment knob is turned, the resistance between the 2 terminals, R1 and 2, changes. This change in resistance alters the resistance of the circuit, thereby causing an input voltage to output voltage ratio change. The output voltage produced by the device is proportional to the mechanical operation.

The SM31TA504 can be adjusted with high precision. This is because it has a contact force designed with minimal contact noise, allowing the contact force to remain stable when adjusting the resistance. The solder lugs are made of high-temperature resistant materials, making them ideal for applications in high-temperature working environments.

The SM31TA504 trimmer potentiometer is an ideal choice for applications requiring high precision adjustment, such as radio, television, automotive electronics, industrial instrumentation, etc.