Resistors are simple passive electronic components that restrict the flow of current and give off heat as a result. The resistance is a fixed value denoted in a unit called Ohms.
Found in almost all circuits the resistor is very useful for limiting current to devices like LED lights or for protecting a microcontroller's input/output pins from too much current.
Adjustable resistors called potentiometers allow the amount of resistance to be varied between zero and the upper limit specified. Smaller potentiometers typically use carbon or fine wire internally to vary the resistance and are used to provide a measureable resistance as an input to a circuit. Too much current through a small potentiometer will damage it.
Code: MCU-60217
Quality black metal finish knob to suit 0.25" shaft on potentiometers or rotary switches. 14mm high, 24mm diameter. Press fits to potentiometer shaft for a stylish finish to a project. More Details...
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Code: SKU-000731
This clear plastic knob is ideal for use with illuminated rotary encoders. Designed to be a press fit on 6mm shafts the knob has a diameter of 15mm and a grippy finish. More Details...
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Code: MCU-60216
Rotary potentiometer rated at linear 10k Ohm. Metal build with 15000 life cycle, 300 degree range, 0.08W power this is ideal as an analog input. More Details...
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Code: MCU-60214
This 10k Ohm Trimpot (Trimmable Potentiometer) has a knob for fingers and a screwdriver slot. It works well in breadboards where it can be read as an analog input to control circuits. More Details...
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Code: SKU-000544
Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft with a set screw. Dimensions: 15mm high 19mm diameter More Details...
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Code: SKU-000736
Potentiometers are incredibly useful, whether you’re controlling the volume on your stereo or the ‘mood lighting’ in your room. The problem with traditional potentiometers is the fact that your microcontroller doesn’t have an easy way to interface with them. More Details...
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Code: SKU-001204
Do you need that extra push over the cliff? The Small sized GTE (Goes To Eleven) Knob can fit onto potentiometers with a 6mm wide shaft thanks to a brass insert with a set screw. We know that most of you are playing at ten, but with the GTE Knob you can go… one louder. Note: It goes to eleven. More Details...
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Code: SKU-004621
An adjustable potentiometer can open up many interesting user interfaces. With this rotary potentiometer just turn the dial and the resistance changes. This potentiometer from Bourns has a ¼" metal knurled shaft diameter, solder lug terminals, no detents, and has a 100K linear taper. More Details...
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Code: SKU-004623
An adjustable potentiometer can open up many interesting user interfaces. With this rotary potentiometer just turn the dial and the resistance changes. This potentiometer from Bourns has a ¼" metal knurled shaft diameter, PC pin terminals, no detents, and has a 100K logarithmic taper. More Details...
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Code: SKU-000374
Linear potentiometer with 10k Ohm rating. The potentiometer will vary the resistance between zero and 10kOhm as the spindle is turned. This can be used to provide an analog input to a circuit for micro-controller. More Details...
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