Rheostats

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We offer a wide range of rheostats, with power ratings from 25W to 1kW. Track resistances range from 0.5Ohm to 50kOhm.

Like potentiometers, rheostats have a uniform resistance track and a sliding contact – however they are connected into an external circuit differently, and they have a different function. They have two terminals rather than three, where one terminal is connected to the resistance track and the other to the sliding contact. As two-terminal devices they are wired in series with a load such as a lamp. Moving the sliding contact alters the series resistance in circuit, controlling the level of current flowing through the lamp and therefore its brightness.

Types of rheostats


Rotary Rheostats are usually used in power applications; as the name suggests, their resistance tracks are rotary.

Linear Rheostats have a linear movement for changing the resistance path length and therefore the resistance. This type is usually found in laboratory applications.

Preset Rheostats are usually found on printed circuit boards, and used for calibration purposes.

Rheostat applications

Rheostats are used in dimmer circuits, heaters and ovens, and speed control circuits for motors. They are also used for easily varying currents in teaching applications.
 
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RT055AS10R0KB
RT055AS10R0KB - Rheostat, Wirewound, 10 ohm, 55 W, RT, Panel Mount, Rotary

1141329

Rheostat, Wirewound, 10 ohm, 55 W, RT, Panel Mount, Rotary

VISHAY

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1+ €880.80 €1,048.15 2+ €770.94 €917.42 3+ €755.52 €899.07 5+ €740.10 €880.72 10+ €724.68 €862.37 20+ €709.26 €844.02 50+ €693.85 €825.68 100+ €678.43 €807.33 More Pricing...

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10ohm 55W RT Panel Mount Rotary - ± 10% Solder Lug 36mm -55°C 320°C
RT025AS1001KB
RT025AS1001KB - Rheostat, Wirewound, 1 kohm, 25 W, RT, Panel Mount, Rotary

1141324

Rheostat, Wirewound, 1 kohm, 25 W, RT, Panel Mount, Rotary

VISHAY

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1+ €242.92 €289.07 2+ €236.85 €281.85 3+ €230.78 €274.63 5+ €224.70 €267.39 10+ €218.63 €260.17 20+ €188.27 €224.04 50+ €184.50 €219.56 100+ €180.74 €215.08 More Pricing...

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1kohm 25W RT Panel Mount Rotary - ± 10% Solder Lug 25mm -55°C 320°C
RT025AS2201KB
RT025AS2201KB - Rheostat, Wirewound, 2.2 kohm, 25 W, RT, Panel Mount, Rotary

1141327

Rheostat, Wirewound, 2.2 kohm, 25 W, RT, Panel Mount, Rotary

VISHAY

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1+ €252.80 €300.83 2+ €221.20 €263.23 3+ €209.01 €248.72 5+ €196.82 €234.22 10+ €184.63 €219.71 20+ €180.11 €214.33 50+ €175.31 €208.62 100+ €171.80 €204.44 More Pricing...

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2.2kohm 25W RT Panel Mount Rotary - ± 10% Solder Lug 25mm -55°C 320°C
RJS50RE
RJS50RE - Rheostat, Wirewound, 50 ohm, 50 W, RJS, Panel Mount, Flatted

2145763

Rheostat, Wirewound, 50 ohm, 50 W, RJS, Panel Mount, Flatted

OHMITE

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1+ €92.17 €109.68 2+ €80.65 €95.97 3+ €79.04 €94.06 5+ €77.43 €92.14 10+ €75.82 €90.23 20+ €69.32 €82.49 50+ €67.58 €80.42 100+ €66.23 €78.81 More Pricing...

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50ohm 50W RJS Panel Mount Flatted - ± 10% Solder Lug 34.93mm - -
RT012AS2200KB
RT012AS2200KB - Rheostat, Wirewound, 220 ohm, 12 W, RT, Panel Mount, Rotary

1141310

Rheostat, Wirewound, 220 ohm, 12 W, RT, Panel Mount, Rotary

VISHAY

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1+ €450.51 €536.11 2+ €439.25 €522.71 3+ €427.99 €509.31 5+ €416.73 €495.91 10+ €405.47 €482.51 20+ €349.16 €415.50 50+ €342.18 €407.19 100+ €335.19 €398.88 More Pricing...

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220ohm 12W RT Panel Mount Rotary - ± 10% Solder Lug 17mm -55°C 320°C
RT025AS10R0KB
RT025AS10R0KB - Rheostat, Wirewound, 10 ohm, 25 W, RT, Panel Mount, Rotary

1141316

Rheostat, Wirewound, 10 ohm, 25 W, RT, Panel Mount, Rotary

VISHAY

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1+ €260.49 €309.98 2+ €253.26 €301.38 3+ €246.02 €292.76 5+ €238.79 €284.16 10+ €231.55 €275.54 20+ €224.32 €266.94 50+ €219.83 €261.60 100+ €215.35 €256.27 More Pricing...

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10ohm 25W RT Panel Mount Rotary - ± 10% Solder Lug 25mm -55°C 320°C
RT012AS1001KB
RT012AS1001KB - Rheostat, Wirewound, 1 kohm, 12 W, RT, Panel Mount, Screwdriver Slot

1141312

Rheostat, Wirewound, 1 kohm, 12 W, RT, Panel Mount, Screwdriver Slot

VISHAY

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1+ €222.09 €264.29 2+ €217.54 €258.87 3+ €212.99 €253.46 5+ €205.95 €245.08 10+ €199.72 €237.67 20+ €199.60 €237.52 50+ €199.48 €237.38 100+ €199.36 €237.24 More Pricing...

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1kohm 12W RT Panel Mount Screwdriver Slot - ± 10% Solder Lug 17mm -55°C 320°C
RT055AS1002KB..
RT055AS1002KB.. - Rheostat, Wirewound, 10 kohm, 55 W, RT, Panel Mount, Rotary

1141336

Rheostat, Wirewound, 10 kohm, 55 W, RT, Panel Mount, Rotary

VISHAY

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1+ €589.71 €701.75 2+ €516.00 €614.04 3+ €498.80 €593.57 5+ €481.61 €573.12 10+ €464.41 €552.65 20+ €455.12 €541.59 50+ €445.83 €530.54 100+ €436.55 €519.49 More Pricing...

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10kohm 55W RT Panel Mount Rotary - ± 10% Solder Lug 36mm -55°C 320°C
RHS100E
RHS100E - Rheostat, Wirewound, 100 ohm, 25 W, RHS, Panel Mount, Flatted

2145775

Rheostat, Wirewound, 100 ohm, 25 W, RHS, Panel Mount, Flatted

OHMITE

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1+ €83.67 €99.57 2+ €81.88 €97.44 3+ €80.09 €95.31 5+ €78.30 €93.18 10+ €76.51 €91.05 20+ €63.75 €75.86 50+ €59.77 €71.13 100+ €59.25 €70.51 More Pricing...

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100ohm 25W RHS Panel Mount Flatted - ± 10% Solder Lug 34.93mm - -
RT025AS4700KB
RT025AS4700KB - Rheostat, Wirewound, 470 ohm, 25 W, RT, Panel Mount, Rotary

1141323

Rheostat, Wirewound, 470 ohm, 25 W, RT, Panel Mount, Rotary

VISHAY

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1+ €265.81 €316.31 2+ €232.58 €276.77 3+ €224.83 €267.55 5+ €217.08 €258.33 10+ €209.33 €249.10 20+ €180.26 €214.51 50+ €176.65 €210.21 100+ €173.05 €205.93 More Pricing...

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470ohm 25W RT Panel Mount Rotary - ± 10% Solder Lug 25mm -55°C 320°C
RT025AS2200KB
RT025AS2200KB - Rheostat, Wirewound, 220 ohm, 25 W, RT, Panel Mount, Rotary

1141322

Rheostat, Wirewound, 220 ohm, 25 W, RT, Panel Mount, Rotary

VISHAY

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1+ €242.92 €289.07 2+ €236.85 €281.85 3+ €230.78 €274.63 5+ €224.70 €267.39 10+ €218.63 €260.17 20+ €188.27 €224.04 50+ €184.50 €219.56 100+ €180.74 €215.08 More Pricing...

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220ohm 25W RT Panel Mount Rotary - ± 10% Solder Lug 25mm -55°C 320°C
RJS225E
RJS225E - Rheostat, Wirewound, 225 ohm, 50 W, RJS, Panel Mount, Flatted

2145766

Rheostat, Wirewound, 225 ohm, 50 W, RJS, Panel Mount, Flatted

OHMITE

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1+ €87.28 €103.86 2+ €85.53 €101.78 3+ €83.79 €99.71 5+ €82.04 €97.63 10+ €80.30 €95.56 20+ €78.55 €93.47 50+ €76.81 €91.40 100+ €75.06 €89.32 More Pricing...

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225ohm 50W RJS Panel Mount Flatted - ± 10% Solder Lug 34.93mm - -
RHS10K
RHS10K - Rheostat, Wirewound, 10 kohm, 25 W, RHS, Panel Mount, Flatted

1050333

Rheostat, Wirewound, 10 kohm, 25 W, RHS, Panel Mount, Flatted

OHMITE

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1+ €88.66 €105.51 2+ €86.55 €102.99 3+ €84.43 €100.47 5+ €82.32 €97.96 10+ €80.20 €95.44 20+ €67.54 €80.37 50+ €66.22 €78.80 100+ €64.90 €77.23 More Pricing...

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10kohm 25W RHS Panel Mount Flatted - ± 10% Solder 34.93mm - -
RT012AS2201KB
RT012AS2201KB - Rheostat, Wirewound, 2.2 kohm, 12 W, RT12, Panel Mount, Rotary

2550668

Rheostat, Wirewound, 2.2 kohm, 12 W, RT12, Panel Mount, Rotary

VISHAY

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1+ €295.78 €351.98 2+ €258.80 €307.97 3+ €253.62 €301.81

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2.2kohm 12W RT12 Panel Mount Rotary - ± 10% Solder Lug 17mm -55°C 320°C
RKS25RE
RKS25RE - Rheostat, Wirewound, 25 ohm, 100 W, RKS, Panel Mount, Flatted

2145762

Rheostat, Wirewound, 25 ohm, 100 W, RKS, Panel Mount, Flatted

OHMITE

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1+ €151.20 €179.93 2+ €147.42 €175.43 3+ €143.65 €170.94 5+ €139.87 €166.45 10+ €136.09 €161.95 20+ €117.20 €139.47 50+ €114.82 €136.64 100+ €112.43 €133.79 More Pricing...

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25ohm 100W RKS Panel Mount Flatted - ± 10% Solder Lug 44.45mm - -
RT025AS22R0KB
RT025AS22R0KB - Rheostat, Wirewound, 22 ohm, 25 W, RT, Panel Mount, Rotary

1141318

Rheostat, Wirewound, 22 ohm, 25 W, RT, Panel Mount, Rotary

VISHAY

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1+ €260.49 €309.98 2+ €253.26 €301.38 3+ €246.02 €292.76 5+ €238.79 €284.16 10+ €231.55 €275.54 20+ €224.32 €266.94 50+ €219.83 €261.60 100+ €215.35 €256.27 More Pricing...

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22ohm 25W RT Panel Mount Rotary - ± 10% Solder Lug 25mm -55°C 320°C
RT025AS1500KB
RT025AS1500KB - Rheostat, Wirewound, 150 ohm, 25 W, RT, Panel Mount, Rotary

1141321

Rheostat, Wirewound, 150 ohm, 25 W, RT, Panel Mount, Rotary

VISHAY

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1+ €303.65 €361.34 2+ €296.06 €352.31 3+ €288.47 €343.28 5+ €280.88 €334.25 10+ €273.29 €325.22 20+ €235.34 €280.05 50+ €230.63 €274.45 100+ €225.93 €268.86 More Pricing...

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150ohm 25W RT Panel Mount Rotary - ± 10% Solder Lug 25mm -55°C 320°C
RHS10RE.
RHS10RE. - RHEOSTAT, WIREWOUND, 10 OHM, 25W

1129868

RHEOSTAT, WIREWOUND, 10 OHM, 25W

OHMITE

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1+ €88.38 €105.17

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10ohm 25W RHS Series Panel Mount Flatted - ± 10% Solder Lug 34.93mm - -
RKS100E
RKS100E - Rheostat, 100 ohm, 100 W, RKS Series, Panel Mount, Flatted, High Power

4046558

Rheostat, 100 ohm, 100 W, RKS Series, Panel Mount, Flatted, High Power

OHMITE

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1+ €146.23 €174.01 2+ €145.07 €172.63 3+ €143.92 €171.26 5+ €142.76 €169.88 10+ €141.61 €168.52 20+ €140.45 €167.14 50+ €124.64 €148.32 100+ €122.15 €145.36 More Pricing...

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100ohm 100W RKS Series Panel Mount Flatted High Power ± 10% Solder Lug 66.68mm - -
RJS10KE
RJS10KE - Rheostat, 10 kohm, 50 W, RJS Series, Panel Mount, Flatted, High Power

4046529

Rheostat, 10 kohm, 50 W, RJS Series, Panel Mount, Flatted, High Power

OHMITE

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1+ €83.05 €98.83 2+ €82.23 €97.85 3+ €81.41 €96.88 5+ €80.59 €95.90 10+ €79.76 €94.91 20+ €78.94 €93.94 50+ €78.12 €92.96 100+ €77.30 €91.99 More Pricing...

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10kohm 50W RJS Series Panel Mount Flatted High Power ± 10% Solder Lug 57.16mm - -
RES100E
RES100E - Rheostat, 100 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft, High Power

4046414

Rheostat, 100 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft, High Power

OHMITE

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1+ €70.37 €83.74 2+ €69.17 €82.31 3+ €67.97 €80.88 5+ €66.77 €79.46 10+ €65.57 €78.03 20+ €60.22 €71.66 50+ €58.20 €69.26 100+ €57.04 €67.88 More Pricing...

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100ohm 12.5W RES Series Panel Mount Round Shaft High Power ± 10% Solder Lug 33.34mm - -
RJS5K0E
RJS5K0E - Rheostat, 5 kohm, 50 W, RJS Series, Panel Mount, Flatted, High Power

4046551

Rheostat, 5 kohm, 50 W, RJS Series, Panel Mount, Flatted, High Power

OHMITE

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1+ €93.63 €111.42 2+ €91.30 €108.65 3+ €88.96 €105.86 5+ €86.63 €103.09 10+ €84.30 €100.32 20+ €81.97 €97.54 50+ €79.63 €94.76 100+ €77.30 €91.99 More Pricing...

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5kohm 50W RJS Series Panel Mount Flatted High Power ± 10% Solder Lug 57.16mm - -
RHS10RE
RHS10RE - Rheostat, 10 ohm, 25 W, RHS Series, Panel Mount, Flatted, High Power

4046506

Rheostat, 10 ohm, 25 W, RHS Series, Panel Mount, Flatted, High Power

OHMITE

You previously purchased this product. View in Order History

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1+ €83.67 €99.57 2+ €81.88 €97.44 3+ €80.09 €95.31 5+ €78.30 €93.18 10+ €76.51 €91.05 20+ €63.75 €75.86 50+ €59.77 €71.13 100+ €59.25 €70.51 More Pricing...

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10ohm 25W RHS Series Panel Mount Flatted High Power ± 10% Solder Lug 53.98mm - -
RKS50RE
RKS50RE - Rheostat, 50 ohm, 100 W, RKS Series, Panel Mount, Flatted, High Power

4046576

Rheostat, 50 ohm, 100 W, RKS Series, Panel Mount, Flatted, High Power

OHMITE

You previously purchased this product. View in Order History

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1+ €151.21 €179.94 2+ €148.19 €176.35 3+ €145.16 €172.74 5+ €142.14 €169.15 10+ €139.11 €165.54 20+ €136.09 €161.95 50+ €133.06 €158.34 100+ €130.04 €154.75 More Pricing...

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50ohm 100W RKS Series Panel Mount Flatted High Power ± 10% Solder Lug 66.68mm - -
RT025AS4R70KB
RT025AS4R70KB - Rheostat, Wirewound, 4.7 ohm, 25 W, RT, Panel Mount, Rotary

1141315

Rheostat, Wirewound, 4.7 ohm, 25 W, RT, Panel Mount, Rotary

VISHAY

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1+ €381.52 €454.01 2+ €333.83 €397.26 3+ €276.60 €329.15 5+ €247.99 €295.11 10+ €228.91 €272.40 20+ €197.13 €234.58 50+ €193.19 €229.90 100+ €189.24 €225.20 More Pricing...

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4.7ohm 25W RT Panel Mount Rotary - ± 10% Solder Lug 25mm -55°C 320°C