SM4W202

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

Potentiometers are one of the most popular components used in electronics due to their versatility and simple operation. Trimmer potentiometers, commonly referred to as trimmers, are a type of potentiometer used in a wide variety of applications such as audio level control, knob control, and resistance variation. The SM4W202 is a trimmer-potentiometer, often used in medical and consumer electronics, with a low profile design suitable for high density PCBs and a wide operating range. It is available in three potential ranges, 0.1K – 5K, 1K – 10K, and 5K – 100KOhm depending on the model. This article presents the application field and working principle of SM4W202 trimmer potentiometer.

Applications

SM4W202 trimmer potentiometers are largely utilized in medical and consumer electronics for applications such as portable ECG monitors, digital cameras, video games, video recorders, and other home theater/audio systems. The small size of the SM4W202 allows for excellent PCB integration in high-density circuit boards and also provides a low resistance variation range. In addition, its tight tolerance (±30%) makes it suitable for variable audio level control, while its wide operating range gives it the ability to adjust other parameters including gate and roir levels.

Working Principle

A trimmer-potentiometer consists of two electrodes, a conducting wire, and a spring element. When an electrical signal is applied to the conducting wire, the spring element is activated and the rotational control is moved along an axis. This action creates a resistance that can be varied according to the amount of force applied. The range of resistance can be adjusted by turning the rotational control and is limited to a given range of values depending on the model.

The SM4W202 is a rotary trimmer-potentiometer that uses the same principle as other common potentiometers. It is characterized by a low profile design to fit on high density PCBs, and its narrow tolerance allows for accurate control. The SM4W202 has a 0.2W power rating and a maximum operating temperature range of -20°C to +85°C allowing for safe operation under prolonged and intensive thermal conditions. Its operating range is between 0.1K – 5KOhm for model WS2, 1K – 10KOhm for WSA, and 5K – 100KOhm for WSL.

In conclusion, the SM4W202 trimmer potentiometer is an excellent component for a wide range of applications. Its small size and low profile design make it well suited for high density PCBs, while its wide operating range provides flexibility and accuracy. It is available in three potential ranges, 0.1K – 5K, 1K – 10K, and 5K – 100KOhm, and its operating temperature range of -20°C to +85°C makes it ideal for long-term use.

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