SM-43B203

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Trimmer Potentiometers are a type of variable resistance with a fixed resistance value and adjustable taps. The SM-43B203 is an example of this type of device. It is a 3-terminal, 0.25W, mini trim potentiometer. This particular trimmer can be used for fine adjustment and tuning of gain circuits, filter circuits, and oscillator circuits. Depending on the type of application, the three pins of the trimmer can be connected in series, or in parallel to the circuit being adjusted.

The working principle of SM-43B203 is based on the well-known principle for potentiometers. It uses a resistor network combined with a sliding contact, also known as a wiper, to produce a variable resistance value. The resistor network is composed of two resistors in series, with the wiper in-between them. As the wiper is moved, the resistance value between the two resistors changes, thus changing the total resistance of the network.

The resistor network of the SM-43B203 consists of two resistors of 600Ω and 200Ω. With the wiper in the middle of the two resistors, the total resistance of the network is 400Ω. As the wiper is moved, the resistance decreases, reaching a minimum of 200Ω when the wiper is at the lower resistor. The maximum resistance of 600Ω is only reached when the wiper is at the upper resistor. As the wiper is moved, the resistance changes in a linear fashion, creating an adjustable output voltage.

The SM-43B203 is primarily used in audio applications, as it is used to fine-tune gain circuits or other audio related functions. In addition to audio applications, the trimmer can also be used for other applications where a precise, adjustable resistance is required. This could include calibration of circuit components, adjustment of voltage levels, and even fine tuning of temperature control circuits.

The SM-43B203 is a very reliable and cost-effective way to add adjustable resistance to a circuit. It is small, and yet has a resistance range from 200Ω to 600Ω. The resistance is adjustable in a linear fashion, from low to high. This makes it ideal for applications where precise adjustment is required or where a large range of resistance values is needed.

Overall, the SM-43B203 is an ideal trimmer potentiometer for a variety of applications. With its robust design and linear adjustable resistance, it can be used to fine-tune gain circuits, adjust voltage levels, or even to fine-tune temperature control circuits. It is an excellent device for all types of applications requiring a precise adjustable variable resistor.

The specific data is subject to PDF, and the above content is for reference