39PNABR10KLF30

Trimmer Potentiometers

A trimmer potentiometer, or “trimpot”, is a device that is used to provide electrical resistance for a variety of applications. The device typically consists of three terminals and operates by providing a variable resistance that can be adjusted by rotating a knob. Common applications of trimpots include volume control in radios and electronic tuning in televisions.

The 39PNABR10KLF30 trimmer potentiometer is a 10K ohm multi-turn resistor with an axial lead design. It has three terminals and is designed to provide a variable resistance between terminals 1 and 3. The device is designed to be adjusted by rotating its small plastic knob, which can be done by hand or with a small screwdriver. The 39PNABR10KLF30 has a rated power of 0.1W and a tolerance of +-20%.

Application Field

The 39PNABR10KLF30 potentiometer finds application in a variety of tasks including input device control in personal computers, music systems and home appliances. It is particularly useful in adjustable resistor applications such as voltage regulators, audio compressors and equalizers. The device is often used as a volume or tone control for a variety of audio and electronic devices, ranging from simple Pre Amplifier and Receiver devices to complex multi-band sound processors and synthesizers.

Working Principle

The 39PNABR10KLF30 trimpot functions by providing a variable resistance between the two outer terminals based on the position of the internal resistor. The internal resistor is connected to the inner terminal and is adjusted by rotating the knob located on the top of the device. As the knob is rotated, the resistance between the outer terminals varies and can be calculated from the following equation:

R = 10k (1 – 0.1(0.1 –5)*A)
where A is the angular position of the resistive element in degrees

This means that for a given angular position of the resistor, the resistance value between terminals 1 and 3 can be determined. As the resistor is moved from its minimum to its maximum position, the resistance value ranges from 0 ohms to 10K ohms.

Conclusion

The 39PNABR10KLF30 trimmer potentiometer provides a convenient way to add an adjustable resistor to electrical circuit designs. It is an easy-to-use, low-cost device that is applicable across a wide range of tasks. Due to its small size, low voltage rating and wide resistance range, the 39PNABR10KLF30 is an ideal choice for a variety of adjustable resistor applications.