73JA100K

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Rotary Potentiometers, Rheostats

A 73JA100K is a rotary potentiometer, or a rheostat, which is a type of variable resistor. It is used to control the voltage or electrical current in a circuit. While a potentiometer is used to vary the resistance in a circuit, a rheostat is used to vary the voltage or the current. It is composed of a resistor that is connected to a rotating contact arm and a scale that is divided into divisions, or units on the circumference of the resistor.

The 73JA100K rotary potentiometer/rheostat is a standard this type of device. It has a resistance of 100 kiloohm and is rated for 20 watts. The body of the device is made of die-cast aluminum and it has both mechanical and electrical safety protection from external abrasions. The device is ideal for use in TV, radio, stereo, and other applications that require both current and voltage control. To use it, one simply has to rotate the contact arm clockwise or counter-clockwise, to increase or decrease the voltage or current flow. Potentiometers are often used in low-power circuits to control the brightness of lights or to adjust the clarity of a sound.

The 73JA100K is a single-turn device, meaning that the contact arm rotates through 360° and returns to its original position with each rotation. This type of device is well-suited for industrial and scientific applications in which a smooth, fine adjustment of the resistance is required. It is easy to operate and the contact arm can be adjusted with a small flat-blade screwdriver or a coin. This device is variable and provides a resistance range of 0 to 100kΩ.

It is important to note that the 73JA100K is a non-linear device, meaning that the resistance does not increase or decrease evenly with each rotation of the contact arm. This is because of the logarithmic scale of its construction. This device is also known as a logarithmic potentiometer/rheostat.

The 73JA100K is designed to operate in temperatures between -20°C and 70°C, and has a relative humidity range of 0 to 90%. It is important to note that the device is a contact-type device and there is no insulation between the resistive element and the contact arm. This device is also self resetting, meaning that it will restore itself to its normal operation after a power interruption.

The 73JA100K offers reliable performance and is available in different sizes, shapes, and resistance ratings. This makes it an ideal choice for a variety of applications, including industrial controls, electronic equipment, and audio/video equipment. It is also easy to install and operate and, because of its high power rating, is suitable for environments where reliable operation is necessary.

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