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Variable Resistors
Browse our wide range of variable resistors including potentiometers, rheostats and thermistors from market leading electronics brands including Vishay, Bourns, EPCOS and RS Pro. What are variable resistors and how do they work? Variable resistors are electrical components that give you control over the current flow through an electric circuit. Variable resistors can be used in a variety of different types of devices, including the volume and gain control on electric instruments such as guitars and basses. The Variable resistors have a maximum and minimum value which can alter the current. Variable resistors are extremely important, without them you cannot control your circuit. What does a variable resistor do in a circuit? A variable resistor’s role in a circuit is to allow the amount of resistance to be changed. When resistance decreases the flow of the current increases. There are different types of variable resistors that can be used for different functions and environments. Types of resistors The three most common types of variable resistors are: Potentiometers The most common type of variable resistor is the potentiometers. The potentiometer can be used as a voltage regulator by introducing a variable amount of resistance into a circuit or as a means of adjusting the power in a circuit. Potentiometers can also be known as “pot” or, more specifically, slider pot, trimmer pot or thumbwheel pot. Rheostat A rheostat is a variable resistor which is used to control current within an electrical circuit. They can control the resistance without interrupting it. Unlike the Potentiometer the Rheostat only uses 2 leads. A connection is made to one end of the resistive element and the other connection is made to the wiper end of the variable resistor. Rheostats are commonly used in motor control. Trimmer Resistors Unlike other resistors, a trimmer resistor is a smaller component that is used to be placed within your circuit and not adjusted again. They are also known as trimpots. Other types of variable resistors include: Ceramic Transient Voltage Suppressors Metal Oxide Varistors Potentiometer Accessories Potentiometer Knob Potentiometer Mounting Nuts Rheostat Dials Thermistors Trimmer Resistor Adjustment Tools Trimmer Resistor Mount Adapters
Showing 1–24 of 663 results
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10 TURN BLACK DIAL,25.4MM LX25.4MM DIA
IDR714,405.79 -
10 TURN DIAL, 3 DIGIT, 6MM METRIC BORE
IDR623,466.16 -
10 TURN DIGITAL CIRCULAR DIAL,30.6MM DIA
IDR14,296,716.78Box (1 Box of 10) -
10 TURN DIGITAL CIRCULAR DIAL,30.6MM DIA
IDR1,441,503.27 -
10 TURN DIGITAL CIRCULAR DIAL,30.6MM DIA
IDR1,583,209.66 -
10 TURN SILVER DIGITAL DIAL,44.5X25.4MM
IDR989,217.59 -
10 TURN SILVER DIGITAL DIAL,44.5X25.4MM
IDR6,861,274.46Box (1 Box of 10) -
11 TURN DIAL POTENTIOMETER,46MM DIA
IDR425,014.28 -
11 TURN SILVER DIAL,21MM LX25.4MM DIA
IDR764,752.99 -
12MM 500MW PCB POT,DUAL 1K LIN
IDR364,597.64 -
12MM CARBON POTENTIOMETER LINEAR 10K 20%
IDR22,866.02 -
140-0-0 1 TURN WIREWOUND POT,1K 13MM
IDR1,849,315.59 -
149 1SECTION CERMET POT ROTARYSWITCH,10K
IDR512,492.54 -
149 1SECTION CERMET POT ROTARYSWITCH,5K
IDR552,980.08 -
149 1SECTION CERMET POT SINGLESHAFT 10K
IDR243,659.47 -
149 1SECTION CERMET POT SINGLESHAFT 1K
IDR245,442.60 -
149 1SECTION CERMET POT SINGLESHAFT 250K
IDR243,659.47 -
149 1SECTION CERMET POT SINGLESHAFT 500R
IDR245,967.05 -
149 1SECTION CERMET POT SINGLESHAFT 50K
IDR245,442.60 -
149 2SECTION CERMET POT SINGLESHAFT 10K
IDR388,407.67 -
149 2SECTION CERMET POT SINGLESHAFT 5K
IDR403,826.50 -
15 TURN BLACK DIAL WITH LOCK, 22.2 DIA
IDR445,677.61 -
15 TURN DIAL,46.02MM DIA,6MM METRIC BORE
IDR515,953.91 -
15 TURN SILVER DIAL,25.4MM LX46MM DIA
IDR658,918.98
