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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Manufacturer Part No	Order Code	Description / Manufacturer	Price For	Price (ex VAT) (inc VAT)	Quantity	Track Resistance	Power Rating	Product Range	Resistor Mounting	Adjustment Type	Rheostat Type	Resistance Tolerance	Resistor Terminals	Product Length	Product Width	Product Height	Operating Temperature Min	Operating Temperature Max
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RT055AS10R0KB	1141329 Data Sheet + RoHS	Rheostat, Wirewound, 10 ohm, 55 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £809.60 £971.52 2+ £708.58 £850.30 3+ £694.41 £833.29 5+ £680.24 £816.29 10+ £666.07 £799.28 20+ £651.89 £782.27 50+ £637.72 £765.26 100+ £623.55 £748.26 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10ohm	55W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	36mm	-55°C	320°C
RT025AS1001KB	1141324 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 1 kohm, 25 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £213.77 £256.52 2+ £208.43 £250.12 3+ £203.09 £243.71 5+ £197.74 £237.29 10+ £192.40 £230.88 20+ £165.68 £198.82 50+ £162.37 £194.84 100+ £159.05 £190.86 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1kohm	25W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	25mm	-55°C	320°C
RT025AS2201KB	1141327 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 2.2 kohm, 25 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £232.36 £278.83 2+ £203.31 £243.97 3+ £192.11 £230.53 5+ £180.90 £217.08 10+ £169.70 £203.64 20+ £165.54 £198.65 50+ £161.13 £193.36 100+ £157.91 £189.49 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2.2kohm	25W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	25mm	-55°C	320°C
RJS50RE	2145763 Data Sheet + RoHS	Rheostat, Wirewound, 50 ohm, 50 W, RJS, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ £89.48 £107.38 2+ £78.29 £93.95 3+ £75.68 £90.82 5+ £73.07 £87.68 10+ £70.46 £84.55 20+ £60.69 £72.83 50+ £59.47 £71.36 100+ £58.28 £69.94 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	50ohm	50W	RJS	Panel Mount	Flatted	-	± 10%	Solder Lug	-	-	34.93mm	-	-
RT012AS2200KB	1141310 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 220 ohm, 12 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £396.45 £475.74 2+ £386.54 £463.85 3+ £376.63 £451.96 5+ £366.72 £440.06 10+ £356.81 £428.17 20+ £307.26 £368.71 50+ £301.11 £361.33 100+ £294.97 £353.96 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	220ohm	12W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	17mm	-55°C	320°C

RT025AS10R0KB	1141316 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 10 ohm, 25 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £229.23 £275.08 2+ £222.86 £267.43 3+ £216.50 £259.80 5+ £210.13 £252.16 10+ £203.77 £244.52 20+ £197.40 £236.88 50+ £193.45 £232.14 100+ £189.50 £227.40 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10ohm	25W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	25mm	-55°C	320°C

RT012AS1001KB	1141312 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 1 kohm, 12 W, RT, Panel Mount, Screwdriver Slot VISHAY You previously purchased this product. View in Order History	Each	1+ £204.30 £245.16 2+ £202.13 £242.56 3+ £199.95 £239.94 5+ £190.91 £229.09 10+ £183.65 £220.38 20+ £183.41 £220.09 50+ £183.17 £219.80 100+ £179.43 £215.32 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1kohm	12W	RT	Panel Mount	Screwdriver Slot	-	± 10%	Solder Lug	-	-	17mm	-55°C	320°C

RT055AS1002KB..	1141336 Data Sheet + RoHS	Rheostat, Wirewound, 10 kohm, 55 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £542.02 £650.42 2+ £474.26 £569.11 3+ £458.45 £550.14 5+ £442.65 £531.18 10+ £426.84 £512.21 20+ £418.30 £501.96 50+ £409.77 £491.72 100+ £401.23 £481.48 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10kohm	55W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	36mm	-55°C	320°C

RHS100E	2145775 Data Sheet + RoHS	Rheostat, Wirewound, 100 ohm, 25 W, RHS, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ £73.63 £88.36 2+ £72.16 £86.59 3+ £70.68 £84.82 5+ £69.21 £83.05 10+ £67.74 £81.29 20+ £66.27 £79.52 50+ £64.79 £77.75 100+ £63.32 £75.98 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	100ohm	25W	RHS	Panel Mount	Flatted	-	± 10%	Solder Lug	-	-	34.93mm	-	-

RT025AS4700KB	1141323 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 470 ohm, 25 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £244.30 £293.16 2+ £213.77 £256.52 3+ £206.65 £247.98 5+ £199.52 £239.42 10+ £192.40 £230.88 20+ £165.68 £198.82 50+ £162.37 £194.84 100+ £159.05 £190.86 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	470ohm	25W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	25mm	-55°C	320°C

RT025AS2200KB	1141322 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 220 ohm, 25 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £213.77 £256.52 2+ £208.43 £250.12 3+ £203.09 £243.71 5+ £197.74 £237.29 10+ £192.40 £230.88 20+ £165.68 £198.82 50+ £162.37 £194.84 100+ £159.05 £190.86 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	220ohm	25W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	25mm	-55°C	320°C

RJS225E	2145766 Data Sheet + RoHS	Rheostat, Wirewound, 225 ohm, 50 W, RJS, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ £76.81 £92.17 2+ £75.27 £90.32 3+ £73.74 £88.49 5+ £72.20 £86.64 10+ £70.67 £84.80 20+ £69.13 £82.96 50+ £67.59 £81.11 100+ £66.06 £79.27 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	225ohm	50W	RJS	Panel Mount	Flatted	-	± 10%	Solder Lug	-	-	34.93mm	-	-

RHS10K	1050333 Data Sheet	Rheostat, Wirewound, 10 kohm, 25 W, RHS, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ £78.02 £93.62 2+ £76.16 £91.39 3+ £74.30 £89.16 5+ £72.44 £86.93 10+ £70.58 £84.70 20+ £59.44 £71.33 50+ £57.70 £69.24 100+ £55.95 £67.14 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10kohm	25W	RHS	Panel Mount	Flatted	-	± 10%	Solder	-	-	34.93mm	-	-

RT012AS2201KB	2550668 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 2.2 kohm, 12 W, RT12, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £271.85 £326.22 2+ £237.87 £285.44 3+ £233.11 £279.73	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2.2kohm	12W	RT12	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	17mm	-55°C	320°C

RKS25RE	2145762 Data Sheet + RoHS	Rheostat, Wirewound, 25 ohm, 100 W, RKS, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ £133.06 £159.67 2+ £129.74 £155.69 3+ £126.41 £151.69 5+ £123.09 £147.71 10+ £119.76 £143.71 20+ £103.14 £123.77 50+ £98.49 £118.19 100+ £96.92 £116.30 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	25ohm	100W	RKS	Panel Mount	Flatted	-	± 10%	Solder Lug	-	-	44.45mm	-	-

RT025AS22R0KB	1141318 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 22 ohm, 25 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £254.70 £305.64 2+ £248.34 £298.01 3+ £241.97 £290.36 5+ £235.61 £282.73 10+ £229.24 £275.09 20+ £197.40 £236.88 50+ £193.45 £232.14 100+ £189.50 £227.40 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	22ohm	25W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	25mm	-55°C	320°C

RT025AS1500KB	1141321 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 150 ohm, 25 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £267.21 £320.65 2+ £260.53 £312.64 3+ £253.86 £304.63 5+ £247.18 £296.62 10+ £240.50 £288.60 20+ £207.10 £248.52 50+ £202.96 £243.55 100+ £198.82 £238.58 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	150ohm	25W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	25mm	-55°C	320°C

RHS10RE.	1129868 Data Sheet + RoHS Date/Lot Code	RHEOSTAT, WIREWOUND, 10 OHM, 25W OHMITE You previously purchased this product. View in Order History	Each	1+ £77.52 £93.02	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10ohm	25W	RHS Series	Panel Mount	Flatted	-	± 10%	Solder Lug	-	-	34.93mm	-	-

RKS100E	4046558 Data Sheet + RoHS	Rheostat, 100 ohm, 100 W, RKS Series, Panel Mount, Flatted, High Power OHMITE You previously purchased this product. View in Order History	Each	1+ £128.68 £154.42 2+ £127.66 £153.19 3+ £126.65 £151.98 5+ £125.63 £150.76 10+ £124.62 £149.54 20+ £123.60 £148.32 50+ £109.68 £131.62 100+ £107.49 £128.99 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	100ohm	100W	RKS Series	Panel Mount	Flatted	High Power	± 10%	Solder Lug	-	-	66.68mm	-	-

RJS10KE	4046529 Data Sheet + RoHS	Rheostat, 10 kohm, 50 W, RJS Series, Panel Mount, Flatted, High Power OHMITE You previously purchased this product. View in Order History	Each	1+ £91.48 £109.78 2+ £89.65 £107.58 3+ £87.82 £105.38 5+ £85.99 £103.19 10+ £84.16 £100.99 20+ £82.33 £98.80 50+ £80.50 £96.60 100+ £78.67 £94.40 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10kohm	50W	RJS Series	Panel Mount	Flatted	High Power	± 10%	Solder Lug	-	-	57.16mm	-	-

RES100E	4046414 Data Sheet + RoHS	Rheostat, 100 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft, High Power OHMITE You previously purchased this product. View in Order History	Each	1+ £63.88 £76.66 2+ £62.60 £75.12 3+ £61.32 £73.58 5+ £60.05 £72.06 10+ £58.77 £70.52 20+ £57.49 £68.99 50+ £56.21 £67.45 100+ £54.94 £65.93 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	100ohm	12.5W	RES Series	Panel Mount	Round Shaft	High Power	± 10%	Solder Lug	-	-	33.34mm	-	-

RJS5K0E	4046551 Data Sheet + RoHS	Rheostat, 5 kohm, 50 W, RJS Series, Panel Mount, Flatted, High Power OHMITE You previously purchased this product. View in Order History	Each	1+ £82.39 £98.87 2+ £78.72 £94.46 3+ £75.06 £90.07 5+ £71.39 £85.67 10+ £67.72 £81.26 20+ £66.65 £79.98 50+ £66.64 £79.97 100+ £66.63 £79.96 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	5kohm	50W	RJS Series	Panel Mount	Flatted	High Power	± 10%	Solder Lug	-	-	57.16mm	-	-

RHS10RE	4046506 Data Sheet + RoHS	Rheostat, 10 ohm, 25 W, RHS Series, Panel Mount, Flatted, High Power OHMITE You previously purchased this product. View in Order History	Each	1+ £73.63 £88.36 2+ £72.16 £86.59 3+ £70.68 £84.82 5+ £69.21 £83.05 10+ £67.74 £81.29 20+ £66.27 £79.52 50+ £64.79 £77.75 100+ £63.32 £75.98 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10ohm	25W	RHS Series	Panel Mount	Flatted	High Power	± 10%	Solder Lug	-	-	53.98mm	-	-

RKS50RE	4046576 Data Sheet + RoHS	Rheostat, 50 ohm, 100 W, RKS Series, Panel Mount, Flatted, High Power OHMITE You previously purchased this product. View in Order History	Each	1+ £133.06 £159.67 2+ £130.40 £156.48 3+ £127.74 £153.29 5+ £125.08 £150.10 10+ £122.42 £146.90 20+ £119.75 £143.70 50+ £117.09 £140.51 100+ £114.43 £137.32 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	50ohm	100W	RKS Series	Panel Mount	Flatted	High Power	± 10%	Solder Lug	-	-	66.68mm	-	-

RT025AS4R70KB	1141315 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 4.7 ohm, 25 W, RT, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	Each	1+ £326.96 £392.35 2+ £286.09 £343.31 3+ £237.05 £284.46 5+ £212.53 £255.04 10+ £196.18 £235.42 20+ £168.94 £202.73 50+ £165.56 £198.67 100+ £162.18 £194.62 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.7ohm	25W	RT	Panel Mount	Rotary	-	± 10%	Solder Lug	-	-	25mm	-55°C	320°C