SM4A200

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Trimmer potentiometers provide a precision means for adjusting circuits. The SM4A200 is a trimmer potentiometer made by Gudel AG and is used for various industrial, automotive, and even medical applications. It has a solid shaft with a flat knob and rotary action to turn the dial. This type of trimmer pot is designed for mounting on a printed circuit board, and is not suitable for any other type of installation situation such as through-hole or surface mount.

The SM4A200 offers an adjustable resistance range from 5 ohms to 500K ohms, with a maximum rated power of 20mW. The rotation angle is limited to only 220°, and the resolution is 0.25°. This trimmer pot is also available in different tolerances, such as 5%, 10%, and 20%.

The construction of the SM4A200 is based on a multilayer low-resistance substrate with silver-plated contacts. It also utilizes a conductive plastic material that ensures low wear of the sliding contact. The lead-free terminals have a soldering temperature of 260°C, making them suitable for lead-free applications. The device is rated for temperatures of -10°C to +85°C, and the operation life is expected to be between 300-500 cycles.

The basic working principle of the SM4A200 is that as the knob or dial is turned, it increases or decreases the resistance of the internal components. This resistance change is what makes the device usable as an adjustable component in circuits. For example, the resistance of the SM4A200 can be used to adjust the gain of an amplifier, or to adjust the tone of an audio system.

In addition to its basic uses, the SM4A200 has also found a number of applications in the medical field. It is often used in medical devices to adjust the flow of anaesthetics or oxygen, as well as to adjust the pressure of an intravenous machine or the output voltage of cardiac monitors. The trimmer potentiometer is also used to adjust the speed of respirators or the sensitivity of ultrasound sensors.

The SM4A200 is one of the most popular trimmer potentiometers available today, due to its high precision and reliability. It is an easy-to-use and effective device for making adjustments in a wide range of circuits and applications. This trimmer pot is cost-effective and is an ideal choice for any application requiring precision and repeatability.

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