Adjustable Resistors

Adjustable resistors, also known as potentiometers, allow a degree of control over the resistance within a circuit. This gives them an advantage over other types of fixed resistor, depending on your needs.
They are composed of a fixed resistive element, and a slider that is able to pass along the element. This is what changes the resistance of the circuit, and it is usually controlled externally.

What are adjustable resistors used for?
Adjustable resistors are most commonly used for volume control in TV and radio. They can also be used as part of a light dimmer, to indirectly affect the level of light.

Types of adjustable resistor
Adjustable resistors largely vary based on material:

  • Wirewound adjustable resistors use a coil of resistance wire, and offer the highest performance.
  • Cermet adjustable resistors are composed of ceramic and metal. They can withstand high temperatures, and are often used in trimmer resistors.
  • Carbon composition adjustable resistors are some of the most common types used, as they are a good all-purpose resistor.
  • Conductive plastic adjustable resistors use conductive plastic ink, and have a low noise output.

...
Lees meer Lees minder

Filters

161 - 166 van 166 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs Resistance Tolerance Power Rating Temperature Coefficient Termination Style Package/Case Technology Mounting Style Case Style Series Dimensions Diameter Length Maximum Operating Temperature
RS-stocknr. 788-7772
FabrikantnummerRSSD30250A1000JB06
FabrikantVishay
56,81 €
Each
Aantal stuks
100Ω 5% 280W - Radial BA25 Wire Wound Bolt On Vitreous Enamel RSSD 32 (Dia.) x 250mm 32mm 250mm +450°C
RS-stocknr. 788-7781
FabrikantnummerRSSD30250A10R0JB06
FabrikantVishay
56,81 €
Each
Aantal stuks
10Ω 5% 280W - Radial BA25 Wire Wound Bolt On Vitreous Enamel RSSD 32 (Dia.) x 250mm 32mm 250mm +450°C
RS-stocknr. 788-7778
FabrikantnummerRSSD30250AR470MB06
FabrikantVishay
71,91 €
Each
Aantal stuks
470mΩ 20% 280W - Radial BA25 - Bolt On Vitreous Enamel RSSD 32 (Dia.) x 250mm 32mm 250mm +450°C
RS-stocknr. 2508374163
FabrikantnummerD75K300E
FabrikantOhmite
29,05 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 2508389244
FabrikantnummerE300K1R6E
FabrikantOhmite
40,31 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 2508373132
FabrikantnummerD175K10RE
FabrikantOhmite
38,78 €
Each
Aantal stuks
- - - - - - - - - - - - - -
Related Products
Ohmite 210 series adjustable power resistors for applications ...
Description:
Ohmite 210 series adjustable power resistors for applications requiring settings at different resistance values. These wirewound resistors are equipped with an adjustable lug, making them ideal for adjusting circuits, obtaining odd resistance values and setting equipment to meet various line ...
A versatile range of adjustable resistor elements ideal ...
Description:
A versatile range of adjustable resistor elements ideal for both continuous and high energy short time duties. Manufactured from an edge wound strip of stainless steel supported on ceramic insulators ZC coils offer an adjustable solution for medium current applications. ...
Vishay Sfernice model, RSSD seriesUnique due to their ...
Description:
Vishay Sfernice model, RSSD seriesUnique due to their ability to withstand intermittent overloads and to work in assemblies which are subject to severe impact / vibration conditions, these resistors demonstrate great mechanical strengthHigh dissipation and excellent resistance to thermal stressSupplied ...
RSSD medium and high power resistors are noted ...
Description:
RSSD medium and high power resistors are noted for their ability to withstand heavy transient and severe shock and vibrationconditions. They complement the ohmic range of Vishay styles RW, RWST and RA in the low value area, and can be ...