72PMR5KLF

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Trimmer Potentiometers

Trimmer potentiometers, or trimpots, are small-sized variable resistors used in a variety of applications. They can be used to control voltage levels, supply current, and set precise frequency values in electric circuits. They are popular with electronics engineers because of their versatility, low cost, and their ability to be easily adjusted without much effort or complex circuitry.

72PMR5KLF Application

The 72PMR5KLF is an especially popular trimmer potentiometer, well-known for its reliability and dependability when used in a variety of applications. It features a miniature ceramic-for-metal frame, 12-pin-tab connections and 1/2″ intervals between the connecting legs. The trimpot also supports a wide voltage rating of up to 200V and a resistance value of between 5 5.5K ohms. It is commonly used in fine tuning and calibration, precision active filters, high-impedance analog circuits and signal level control circuits. The 72PMR5KLF is perfect for use in set-top boxes, A/V receivers, video amplifiers, and other audio and video related products.

72PMR5KLF Working Principle

The 72PMR5KLF uses a variable resistor principle. When a voltage is applied to the central pin, the voltage is distributed along the semi-circular resistor track. This in turn affects the resistance of the entire circuit. The resistance value can be adjusted by moving the sliding contact along the resistor track. The central pin provides the feedback loop between the current source and the variable resistor. By adjusting the sliding contact along the track, the resistance value changes and this affects the current supplied to the circuit.

Advantages & Disadvantages

Trimpots are popular across numerous industries because of their low cost, small size, and versatility. They are reliable and easy to use, and do not require complex circuitry or soldering work. They are simple to adjust and calibrate for precise applications. The only major drawback of trimpots is their limited operating temperature range. Most designs work best when operated within a temperature range of -40 to +85°C.

Conclusion

The 72PMR5KLF trimmer potentiometer is an inexpensive, versatile, and dependable component used in a variety of applications. It makes use of a variable resistor principle to adjust current and voltage levels in electric circuits. It is an excellent choice for fine tuning, calibration, precision filters, and high-impedance analog circuits. The only major disadvantage is its limited temperature range.

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