PDB181-K220K-503B

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Rotary Potentiometers, Rheostats, are very useful electronic components for controlling the flow of electricity or resistance in a circuit. The PDB181-K220K-503B is a type of rotary potentiometer with a resistance range of 50K ohms and a 4-wire connection. It can be used in a variety of applications, such as controlling the gain of an amplifier, controlling the brightness of a light, or regulating the current in an AC or DC circuit.

The PDB181-K220K-503B features a two-pole construction, meaning it has two independent resistors. The main resistor is fixed and is used to control the amplitude of an input signal. The second resistor, or "tap", is adjustable and is used to further adjust the signal amplitude. The two resistors can be adjusted with a rotating knob connected to the rotary potentiometer.

The rotary potentiometer also features a wide operating temperature range, from -40°C to +105°C, making it suitable for use in extreme temperatures. It also has a high level of durability, with a rated life of up to 100,000 revolutions. Its construction is also highly resistant to vibration and shock, allowing it to be used in highly demanding environments.

The PDB181-K220K-503B is also highly reliable, with a maximum tolerance of +-10%. This means that the user can expect a stable performance on a consistent basis. Finally, the rotary potentiometer also features a high level of accuracy, with an inaccuracy rating of only +-0.005%, making it perfect for use in precise applications.

In terms of its application fields, the PDB181-K220K-503B is frequently used in audio amplifiers, radio tuners, synthesizers, and audio mixers to control gain and tone. It is also popular in industrial applications where precise control of a signal is necessary, such as in motor speed control and motion control systems. In addition, it can also be used in light dimmers, voltage regulators, temperature controllers, and voltage dividers.

In terms of its working principle, the PDB181-K220K-503B uses a simple voltage divider network to control the flow of current. The two resistors are connected in series, with the rotary knob connected to the second resistor. When the knob is turned, the resistance of the second resistor changes, changing the ratio of the two resistors. This in turn changes the voltage applied to the circuit, allowing for precise control of the current.

Overall, the PDB181-K220K-503B is a reliable and highly accurate rotary potentiometer that can be used in a variety of applications. Its wide operating temperature range, high level of durability, and accurate readings make it the perfect choice for controlling the gain and tone of audio signals, or for precise control of motion, voltage, or temperature in industrial applications.

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