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 resistorAdjustable 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.

...
Read more Read less

Filters

Viewing 1 - 20 of 179 products
Results per page
Description Price Resistance Tolerance Power Rating Temperature Coefficient Termination Style Package/Case Technology Mounting Style Case Style Series Dimensions Diameter Length Maximum Operating Temperature
RS Stock No. 788-7740
Mfr. Part No.RSSD20117A4R70KB15
BrandVishay
kr 274,87
Each
Units
4.7 Ω 10% 100W - Radial BA25 Wire Wound Flange Mount Vitreous Enamel RSSD 22 (Dia.) x 117mm 22mm 117mm +450°C
RS Stock No. 788-7797
Mfr. Part No.RSSD30250A4R70KB06
BrandVishay
kr 538,38
Each
Units
4.7 Ω 10% 280W - Radial BA25 Wire Wound Bolt On Vitreous Enamel RSSD 32 (Dia.) x 250mm 32mm 250mm +450°C
RS Stock No. 788-7781
Mfr. Part No.RSSD30250A10R0JB06
BrandVishay
kr 566,40
Each
Units
10 Ω 5% 280W - Radial BA25 Wire Wound Bolt On Vitreous Enamel RSSD 32 (Dia.) x 250mm 32mm 250mm +450°C
RS Stock No. 788-7784
Mfr. Part No.RSSD30250A22R0JB06
BrandVishay
kr 554,23
Each
Units
22 Ω 5% 280W - Radial BA25 Wire Wound Bolt On Vitreous Enamel RSSD 32 (Dia.) x 250mm 32mm 250mm +450°C
RS Stock No. 892-4787
Mfr. Part No.D12K50RE
BrandOhmite
kr 149,25
Each
Units
50 Ω ±10% 12W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D12 7.94 x 44.4mm 7.94mm 44.4mm +350°C
RS Stock No. 788-7790
Mfr. Part No.RSSD30250A47R0JB06
BrandVishay
kr 548,45
Each
Units
47 Ω 5% 280W - Radial BA25 Wire Wound Bolt On Vitreous Enamel RSSD 32 (Dia.) x 250mm 32mm 250mm +450°C
RS Stock No. 893-1069
Mfr. Part No.D225K30R-B
BrandOhmite
kr 124,697
Each (In a Pack of 25)
Units
30 Ω ±10% 225W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D225 28.6 x 266.7mm 28.6mm 266.7mm +350°C
RS Stock No. 788-7734
Mfr. Part No.RSSD20117A10R0JB15
BrandVishay
kr 281,65
Each
Units
10 Ω 5% 100W - Radial BA25 Wire Wound Flange Mount Vitreous Enamel RSSD 22 (Dia.) x 117mm 22mm 117mm +450°C
RS Stock No. 892-5749
Mfr. Part No.D12K10KE
BrandOhmite
kr 108,581
Each (In a Pack of 25)
Units
10 kΩ ±10% 12W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D12 7.94 x 44.4mm 7.94mm 44.4mm +350°C
RS Stock No. 892-5752
Mfr. Part No.D175K500E
BrandOhmite
kr 272,28
Each
Units
500 Ω ±10% 175W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D175 28.6 x 215.9mm 28.6mm 215.9mm +350°C
RS Stock No. 892-8533
Mfr. Part No.D175K5R0E
BrandOhmite
kr 392,02
Each
Units
5 Ω ±10% 175W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D175 28.6 x 215.9mm 28.6mm 215.9mm +350°C
RS Stock No. 892-5755
Mfr. Part No.D25K3R0E
BrandOhmite
kr 127,92
Each
Units
3 Ω ±10% 25W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D25 14.3 x 50.8mm 14.3mm 50.8mm +350°C
RS Stock No. 788-7722
Mfr. Part No.RSSD10X50A5R60KS06
BrandVishay
kr 171,58
Each
Units
5.6 Ω 10% 25W - Radial BA25 Wire Wound Flange Mount Vitreous Enamel RSSD 11.5 (Dia.) x 50mm 11.5mm 50mm +450°C
RS Stock No. 144-5506
Mfr. Part No.D25K300E
kr 110,27
Each
Units
300 Ω ±10% 25W ±260ppm/°C Solder - Wire Wound Bolt On Vitreous Enamel 210 14.3 (Dia.) x 50.8mm 14.3mm 50.8mm +350°C
RS Stock No. 892-4721
Mfr. Part No.D100K1R0E
BrandOhmite
kr 252,64
Each
Units
1 Ω ±10% 100W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D100 19.1 x 165.1mm 19.1mm 165.1mm +350°C
RS Stock No. 892-8537
Mfr. Part No.D225K10KE
BrandOhmite
kr 323,63
Each
Units
10 kΩ ±10% 225W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D225 28.6 x 266.7mm 28.6mm 266.7mm +350°C
RS Stock No. 788-7778
Mfr. Part No.RSSD30250AR470MB06
BrandVishay
kr 722,23
Each
Units
470 mΩ 20% 280W - Radial BA25 - Bolt On Vitreous Enamel RSSD 32 (Dia.) x 250mm 32mm 250mm +450°C
RS Stock No. 892-8300
Mfr. Part No.D25K200E
BrandOhmite
kr 132,10
Each
Units
200 Ω ±10% 25W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D25 14.3 x 50.8mm 14.3mm 50.8mm +350°C
RS Stock No. 892-4888
Mfr. Part No.D25K25KE
BrandOhmite
kr 124,03
Each
Units
25 kΩ ±10% 25W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D25 14.3 x 50.8mm 14.3mm 50.8mm +350°C
RS Stock No. 892-8347
Mfr. Part No.D50K750E
BrandOhmite
kr 161,31
Each
Units
750 Ω ±10% 50W ±260ppm/°C - - - Bolt On, Bracket Vitreous Enamel D50 14.3 x 101.6mm 14.3mm 101.6mm +350°C
Related Products
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 series. Unique due to ...
Description:
Vishay Sfernice model, RSSD series. Unique 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 strength. High dissipation and excellent resistance to ...
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 ...
Ohmite 280 series Corrib® resistors are ideal for ...
Description:
Ohmite 280 series Corrib® resistors are ideal for applications involving high currents at very low resistance values. These heavy duty resistors are designed to withstand frequent start-stop cycles characteristic of motor starting, dynamic braking and other similar applications. Corrib® resistors ...