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.

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RS-artikelnummer 788-7734
Tillv. art.nrRSSD20117A10R0JB15
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307,28 kr
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10 Ω 5% 100W - Radial BA25 Wire Wound Flange Mount Vitreous Enamel RSSD 22 (Dia.) x 117mm 22mm 117mm +450°C
RS-artikelnummer 788-7659
Tillv. art.nrRSSD25168A2R20KB06
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448,55 kr
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2.2 Ω ±10% 200W - Radial BA25 - Bolt On Vitreous Enamel RSSD 27 x 168mm 27mm 168mm +450°C
RS-artikelnummer 892-4960
Tillv. art.nrD75K15RE
VarumärkeOhmite
225,93 kr
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15 Ω ±10% 75W ±260ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel D75 14.3 x 152.4mm 14.3mm 152.4mm +350°C
RS-artikelnummer 893-0940
Tillv. art.nrE300KR80E
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425,90 kr
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0.8 Ω ±10% 300W ±400ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel E300 28.58 x 215.9mm 28.58mm 215.9mm +400°C
RS-artikelnummer 788-7747
Tillv. art.nrRSSD20117A22R0JB15
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307,28 kr
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22 Ω 5% 100W - Radial BA25 Wire Wound Flange Mount Vitreous Enamel RSSD 22 (Dia.) x 117mm 22mm 117mm +450°C
RS-artikelnummer 144-5503
Tillv. art.nrD100K25RE
VarumärkeArcol Ohmite
237,49 kr
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25 Ω ±10% 100W ±260ppm/°C Solder - Wire Wound Bolt On Vitreous Enamel 210 19.1 x 165.1mm 19.1mm 165.1mm +350°C
RS-artikelnummer 893-0943
Tillv. art.nrE300KR31E
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431,82 kr
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0.31 Ω ±10% 300W ±400ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel E300 28.58 x 215.9mm 28.58mm 215.9mm +400°C
RS-artikelnummer 788-7744
Tillv. art.nrRSSD20117A47R0JB15
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332,61 kr
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47 Ω 5% 100W - Radial BA25 Wire Wound Flange Mount Vitreous Enamel RSSD 22 (Dia.) x 117mm 22mm 117mm +450°C
RS-artikelnummer 144-5507
Tillv. art.nrD50K50RE
VarumärkeArcol Ohmite
182,99 kr
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50 Ω ±10% 50W ±260ppm/°C Solder - Wire Wound Bolt On Vitreous Enamel 210 14.3 x 101.6mm 14.3mm 101.6mm +350°C
RS-artikelnummer 892-4755
Tillv. art.nrD100K500E
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359,63 kr
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500 Ω ±10% 100W ±260ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel D100 19.1 x 165.1mm 19.1mm 165.1mm +350°C
RS-artikelnummer 893-5519
Tillv. art.nrD225K250E-B
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109,933 kr
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250 Ω ±10% 225W ±260ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel D225 28.6 x 266.7mm 28.6mm 266.7mm +350°C
RS-artikelnummer 892-8353
Tillv. art.nrD25K250E
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132,66 kr
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250 Ω ±10% 25W ±260ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel D25 14.3 x 50.8mm 14.3mm 50.8mm +350°C
RS-artikelnummer 788-7788
Tillv. art.nrRSSD30250A3300JB06
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617,94 kr
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330 Ω 5% 280W - Radial BA25 Wire Wound Bolt On Vitreous Enamel RSSD 32 (Dia.) x 250mm 32mm 250mm +450°C
RS-artikelnummer 892-8451
Tillv. art.nrD50K200E
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152,62 kr
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200 Ω ±10% 50W ±260ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel D50 14.3 x 101.6mm 14.3mm 101.6mm +350°C
RS-artikelnummer 892-8537
Tillv. art.nrD225K10KE
VarumärkeOhmite
301,10 kr
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10000 Ω ±10% 225W ±260ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel D225 28.6 x 266.7mm 28.6mm 266.7mm +350°C
RS-artikelnummer 893-5112
Tillv. art.nrD25K7K0E
VarumärkeOhmite
99,711 kr
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7000 Ω ±10% 25W ±260ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel D25 14.3 x 50.8mm 14.3mm 50.8mm +350°C
RS-artikelnummer 893-5513
Tillv. art.nrD225K500E-B
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134,11 kr
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500 Ω ±10% 225W ±260ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel D225 28.6 x 266.7mm 28.6mm 266.7mm +350°C
RS-artikelnummer 892-4872
Tillv. art.nrD25K1R0E
VarumärkeOhmite
269,87 kr
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1 Ω ±10% 25W ±260ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel D25 14.3 x 50.8mm 14.3mm 50.8mm +350°C
RS-artikelnummer 788-7716
Tillv. art.nrRSSD10X50A10R0JS06
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190,99 kr
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10 Ω 5% 25W - Radial BA25 Wire Wound Flange Mount Vitreous Enamel RSSD 11.5 (Dia.) x 50mm 11.5mm 50mm +450°C
RS-artikelnummer 892-4878
Tillv. art.nrD25K1K5E
VarumärkeOhmite
137,11 kr
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1500 Ω ±10% 25W ±260ppm/°C Radial - - Bolt On, Bracket Vitreous Enamel D25 14.3 x 50.8mm 14.3mm 50.8mm +350°C