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Where To Buy Potentiometer



UNIT FADER is a Slide Potentiometer with color indicator, employ a 35mm slide potentiometer + 14x SK6812 programmable RGB lights. The fader has its own center point positioning, and excellent slide appliances for stable, reliable performance and precise control.The integrated beads support digital addressing, which means you can adjust the brightness and color of each LED light. The product is suitable for lighting, music control, and other applications.




where to buy potentiometer


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A 10K Ohm Potentiometer designed to work in a building brick or conductive sewing based environment. Connect it to your MicroController of choice and program away. Use this as you would any other potentiometer in a project, be it analogue or digital. This potentiometer utilizes a large blue knob for easy finger adjusting.


Like all of our Crazy Circuits components this potentiometer is soldered to a small circuit board with large building brick sized holes in it. The overall PCB size is the same as a 2x3 brick component. The part is designed to connect to other components in a brick based environment using our 1/8th inch wide Maker Tape.


The DS1881 is a dual, nonvolatile (NV) digital potentiometer designed to operate in audio systems that require 5V signal levels. The potentiometer settings can be stored in EEPROM so that they are retained when the power is cycled. The DS1881 has separate supplies for the potentiometers (VCC) and the communication circuitry (VDD). For clickless/popless operation, a zero-crossing detector allows the wiper position to change when there is no voltage across the potentiometer. The device is also designed to minimize crosstalk, and the two digital potentiometers provide 0.5dB channel-to-channel matching to prevent volume differences between channels. Total harmonic distortion (THD) is also minimal as long as the wiper drives a high-impedance load.


The installation of our hollow shaft potentiometers is very easy, because their functional design with flattened hollow shaft hub and anti-rotation pin are optimally aligned for it. If only little space is available in your application, our hollow shaft potentiometers are particularly suitable. The output signal of our models impresses with excellent stability, made possible by the high-quality resistor element as well as the multi-finger precious metal wiper. Does none of our standard products meet your requirements? Together with our partner we design the optimal product, which fits functionally as well as economically. Even with comparatively small quantities, we are able to make individual technical adjustments. We guarantee high product quality and delivery reliability as well as support throughout the entire service life of your application.


Fields of application for potentiometers Potentiometer are long-established sensors. They are popular because it is easy to integrate them into the application, the power consumption is low, the signal is available immediately without computing times and, above all, they have proven themselves over a long period of time, and their mode of operation is well known. Basically, potentiometers are used wherever angles or positions need to be measured. The multitude of potentiometer types and their variants cover a very broad application landscape. The differences between the potentiometers are already apparent within the respective potentiometer technology. It therefore always depends on the respective application whether the potentiometer is suitable for the intended task. In general, potentiometers are not suitable for high mechanical shock loads and not for high speeds > 400 rpm but are considered resistant to EMC influences and insensitive to ESD influences because they are passive components. What is a potentiometer? The potentiometer was invented by Johann Christian Poggendorff in 1841. It has been used as an input element and sensor since the beginning of commercial use in electrical engineering. In principle, the design and function of all potentiometers are the same. They have a so-called resistance element with a movable wiper contact, which taps a voltage potential on a resistance track. Potentiometers are therefore variable voltage dividers. The resistive element is circular for rotary potentiometers and linear for slide potentiometers. For connection to the application, rotary potentiometers have a mechanical connection (usually a shaft) and electrical connections (usually three). Electrical connection and signal output of potentiometers Potentiometers usually have three connections: Two for the resistive element and one for the wiper (signal output). If one follows a usual connection diagram for a potentiometer and applies 0 V to the defined connection "one", 5 V to connection "three" and turns the shaft of the potentiometer, the voltage signal from 0 to 5 volts is "output" via connection "two" (on the wiper). An absolute analog signal is available immediately without switch-on delay and calculation times. The value of the signal output depends on the applied voltage in relation to the position of the slider on the resistance track. By changing the position by means of rotational movement and direction of rotation, a voltage difference between position A and position B can be detected and thus the position can be determined in angular degrees. Our potentiometers almost exclusively provide a linear output signal. Exceptions are our sine/cosine potentiometers. Potentiometer technologies Our precision potentiometers are available in three different resistance elements (technologies). The respective resistance element is decisively responsible for quality and function in the application. Wirewound potentiometers have a resistor track made of wire, which is usually wound around a ceramic, conductive plastic potentiometers have a resistor track made of conductive plastic, and the hybrid potentiometers have a resistor track made of a combination of wire and conductive plastic. Wirewound potentiometer In principle, they can also be used as a variable resistor (in so-called rheostat circuit). Nevertheless, we recommend the voltage divider circuit, since the components were designed for this purpose. They are available in so-called single turn ( 7200) versions. They have a limited-service life due to abrasion and due to the winding jumps of the wire windings "steps" in the output signal, which manifest themselves as noise when the slider moves.


Conductive plastic and hybrid potentiometers. Both technologies must never be used as variable resistors (rheostat circuit), but only in the voltage divider circuit. Conductive plastic is only available as single turn and hybrid only as multiturn variants. Hybrid potentiometers make it possible to use the advantages of conductive plastic potentiometers also in multiturn potentiometers. They have a significantly longer lifespan because the resistance track is very smooth. They also have a theoretically infinite resolution, a particularly smooth output signal, superior linearity and allow higher adjustment speeds. Multiganged/Tandem Potentiometer If redundancy of sensor technology is required in applications, so-called multiganged potentiometers or tandem potentiometers in double version are often used. The field of application ranges from mechanical engineering to aviation. For the tight linearity tolerances of the potentiometers to maintain their quality, it is important to ensure that the heat generated during operation, due to the stringed construction, does not have a negative effect on the properties of the potentiometer. It is therefore necessary to reduce the nominal load according to the table. Oil-filled potentiometers Oil-filled potentiometers are typically used in special application environments where, for example, aggressive gases, harmful salts or moisture can be a problem. These potentiometers are also characterized by the fact that the wiper contact resistance is particularly stable over the entire lifetime, as the oil filling suppresses corrosion on the wiper or near the. Some applications of these potentiometers include control systems in areas such as shipbuilding, coastal electrical installations, mines and pits, ironworks, chemical plants, and machine tools. Some applications, however, require additional approvals, such as explosion protection, which must be obtained separately for each application. Measuring amplifier/signal converter for potentiometers As passive components, potentiometers do not offer standardized output levels such as 0..10 V, 4..20 mA. Please note that the output signal of the potentiometers should be tapped by means of a voltage divider circuit and thus virtually no current flows via the output. Using the signal itself as a voltage or current source for a converter is therefore not necessary. In order to nevertheless generate standardized signals in a simple design, we offer measuring amplifiers that allow standardized signals to be obtained by means of an external voltage supply. IP protection class Almost all our potentiometers are specified with protection class IP40 and almost all of them can be increased to protection class IP65 with a shaft sealing ring on the shaft side. If a degree of protection is required, e.g. for the housing, the MFP500 and AL17IP series as well as the oil-filled OFH, OF5001, OF30, OF50 series meet this requirement. For numerous potentiometer series there are options that allow a sealed housing. Shaft torque Our potentiometers are offered with precision ball bearings or sleeve bearings. In general, potentiometers with precision ball bearings have a lower torque than potentiometers with sleeve bearings. Servo flanged potentiometers are in principle always equipped with ball bearings. For almost all potentiometers it is possible to change the operating torque (e.g. 2 to 3 Ncm at room temperature). In addition to the pleasant haptic properties, an increased rotational resistance prevents unintentional adjustment due to vibrations of the machine. A wide selection of pre-assembled sets and adjustment knobs are available for your application. 041b061a72


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