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	Availability	Price For	Price (Incl JCT)	Quantity	Track Resistance	Power Rating	Plug Type	Product Range	Resistor Mounting	Adjustment Type	Rheostat Type	Resistance Tolerance	Resistor Terminals	Product Height	Operating Temperature Min	Operating Temperature Max
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RHS100E	2145775 Data Sheet + RoHS	Rheostat, Wirewound, 100 ohm, 25 W, H Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	1 available for 2 - 3 business days delivery + Check Stock & Lead Times 1 deliver in 2-3 business days from our SG warehouse :(SG stock) Order before 17:00 Mon-Fri (excluding National Holidays) More stock available week commencing 10/6/25	Each	1+ ¥16,544.97 (¥18,199.47) 2+ ¥11,811.81 (¥12,992.99) 3+ ¥11,214.88 (¥12,336.37) 5+ ¥10,617.96 (¥11,679.76) 10+ ¥10,021.03 (¥11,023.13) 20+ ¥10,014.36 (¥11,015.80) 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	-	H Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RT025AS2201KB	1141327 Data Sheet + RoHS	Rheostat, Wirewound, 2.2 kohm, 25 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	11 available for 3 - 4 business days delivery + Check Stock & Lead Times 11 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays) More stock available week commencing 6/23/25	Each	1+ ¥37,386.29 (¥41,124.92) 5+ ¥36,936.96 (¥40,630.66) 10+ ¥36,487.64 (¥40,136.40)	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 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C
RT025AS2200KB	1141322 Data Sheet + RoHS	Rheostat, Wirewound, 220 ohm, 25 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	8 available for 3 - 4 business days delivery + Check Stock & Lead Times 8 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays) More stock available week commencing 6/23/25	Each	1+ ¥39,562.72 (¥43,518.99) 5+ ¥37,783.58 (¥41,561.94) 10+ ¥35,892.40 (¥39,481.64)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	220ohm	25W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C
RT025AS4700KB	1141323 Data Sheet + RoHS	Rheostat, Wirewound, 470 ohm, 25 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	1 available for 3 - 4 business days delivery + Check Stock & Lead Times 1 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays) More stock available week commencing 6/23/25	Each	1+ ¥39,562.72 (¥43,518.99) 5+ ¥37,783.58 (¥41,561.94) 10+ ¥35,892.40 (¥39,481.64)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	470ohm	25W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C
RT025AS10R0KB	1141316 Data Sheet + RoHS	Rheostat, Wirewound, 10 ohm, 25 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History	33 available for 3 - 4 business days delivery + Check Stock & Lead Times 33 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays) More stock available week commencing 6/23/25	Each	1+ ¥38,671.80 (¥42,538.98) 5+ ¥36,863.69 (¥40,550.06) 10+ ¥35,055.57 (¥38,561.13)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10ohm	25W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C

RT055AS1002KB..	1141336 Data Sheet + RoHS	Rheostat, Wirewound, 10 kohm, 55 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥155,415.40 (¥170,956.94) 5+ ¥135,988.47 (¥149,587.32) 10+ ¥115,303.74 (¥126,834.11)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10kohm	55W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	36mm	-55°C	320°C

RT012AS1001KB	1141312 Data Sheet + RoHS	Rheostat, Wirewound, 1 kohm, 12 W, RT12 Series, Panel Mount, Screwdriver Slot VISHAY You previously purchased this product. View in Order History		Each	1+ ¥77,499.51 (¥85,249.46) 5+ ¥67,812.07 (¥74,593.28) 10+ ¥56,187.14 (¥61,805.85)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1kohm	12W	-	RT12 Series	Panel Mount	Screwdriver Slot	-	± 10%	Solder Lug	17mm	-55°C	320°C

RJS1K0E.	1129893 Data Sheet RoHS	RHEOSTAT, WIREWOUND, 1KOHM, 50W OHMITE You previously purchased this product. View in Order History		Each	1+ ¥30,904.83 (¥33,995.31) 2+ ¥29,351.05 (¥32,286.16) 3+ ¥27,797.27 (¥30,577.00) 5+ ¥26,243.49 (¥28,867.84) 10+ ¥24,689.70 (¥27,158.67) 20+ ¥22,865.13 (¥25,151.64) 50+ ¥21,040.56 (¥23,144.62) 100+ ¥20,619.75 (¥22,681.73) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1kohm	50W	50W	J Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-

RHS25RE	2145771 Data Sheet + RoHS	Rheostat, Wirewound, 25 ohm, 25 W, H Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History		Each	1+ ¥15,917.97 (¥17,509.77) 2+ ¥15,723.60 (¥17,295.96) 3+ ¥15,529.23 (¥17,082.15) 5+ ¥15,334.86 (¥16,868.35) 10+ ¥15,140.49 (¥16,654.54) 20+ ¥13,630.99 (¥14,994.09) 50+ ¥12,121.48 (¥13,333.63) 100+ ¥11,662.01 (¥12,828.21) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	25ohm	25W	-	H Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-

RKS50RE	4046576 Data Sheet + RoHS	Rheostat, 50 ohm, 100 W, K Series, Panel Mount, Flatted, High Power OHMITE You previously purchased this product. View in Order History		Each	1+ ¥44,115.72 (¥48,527.29) 5+ ¥39,647.57 (¥43,612.33) 10+ ¥35,179.41 (¥38,697.35)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	50ohm	100W	-	K Series	Panel Mount	Flatted	High Power	± 10%	Solder Lug	66.68mm	-	-

RT025AS22R0KB	1141318 Data Sheet + RoHS	Rheostat, Wirewound, 22 ohm, 25 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥39,638.94 (¥43,602.83) 5+ ¥36,740.64 (¥40,414.70) 10+ ¥33,842.33 (¥37,226.56)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	22ohm	25W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C

RT012AS2201KB	2550668 Data Sheet + RoHS	Rheostat, Wirewound, 2.2 kohm, 12 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥85,116.82 (¥93,628.50) 5+ ¥80,861.84 (¥88,948.02) 10+ ¥76,606.86 (¥84,267.55)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2.2kohm	12W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	17mm	-55°C	320°C

RT025AS1500KB	1141321 Data Sheet + RoHS	Rheostat, Wirewound, 150 ohm, 25 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥56,667.84 (¥62,334.62) 5+ ¥49,584.36 (¥54,542.80) 10+ ¥41,084.18 (¥45,192.60)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	150ohm	25W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C

RT012AS2200KB	1141310 Data Sheet + RoHS	Rheostat, Wirewound, 220 ohm, 12 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥105,664.64 (¥116,231.10) 5+ ¥92,456.56 (¥101,702.22) 10+ ¥76,606.86 (¥84,267.55)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	220ohm	12W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	17mm	-55°C	320°C

RT025AS1000KB	1141320 Data Sheet + RoHS	Rheostat, Wirewound, 100 ohm, 25 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥49,551.81 (¥54,506.99) 5+ ¥44,469.98 (¥48,916.98) 10+ ¥39,388.14 (¥43,326.95)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	100ohm	25W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C

RT012AS1500KB	1141309 Data Sheet + RoHS	Rheostat, Wirewound, 150 ohm, 12 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥77,499.51 (¥85,249.46) 5+ ¥67,812.07 (¥74,593.28) 10+ ¥56,187.14 (¥61,805.85)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	150ohm	12W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	17mm	-55°C	320°C

RT055AS3300KB	1141332 Data Sheet + RoHS	Rheostat, Wirewound, 330 ohm, 55 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥118,684.83 (¥130,553.31) 5+ ¥106,351.74 (¥116,986.91) 10+ ¥94,018.65 (¥103,420.52)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	330ohm	55W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	36mm	-55°C	320°C

RT025AS1001KB	1141324 Data Sheet + RoHS	Rheostat, Wirewound, 1 kohm, 25 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥36,185.74 (¥39,804.31) 5+ ¥35,844.81 (¥39,429.29) 10+ ¥35,503.88 (¥39,054.27)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1kohm	25W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C

RT012AS1000KB	1141308 Data Sheet + RoHS	Rheostat, Wirewound, 100 ohm, 12 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥71,604.97 (¥78,765.47) 5+ ¥64,290.23 (¥70,719.25) 10+ ¥56,975.49 (¥62,673.04)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	100ohm	12W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	17mm	-55°C	320°C

RT025AS4R70KB	1141315 Data Sheet + RoHS	Rheostat, Wirewound, 4.7 ohm, 25 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥60,680.64 (¥66,748.70) 5+ ¥53,095.56 (¥58,405.12) 10+ ¥43,993.46 (¥48,392.81)	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 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C

RT055AS10R0KB	1141329 Data Sheet + RoHS	Rheostat, Wirewound, 10 ohm, 55 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥138,816.24 (¥152,697.86) 5+ ¥127,683.86 (¥140,452.25) 10+ ¥116,551.47 (¥128,206.62)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10ohm	55W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	36mm	-55°C	320°C

RT055AS1001KB	1141333 Data Sheet + RoHS	Rheostat, Wirewound, 1 kohm, 55 W, RT Series, Panel Mount, Rotary VISHAY You previously purchased this product. View in Order History		Each	1+ ¥135,677.43 (¥149,245.17) 5+ ¥118,717.75 (¥130,589.53) 10+ ¥110,289.30 (¥121,318.23)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1kohm	55W	-	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	36mm	-55°C	320°C

RHS10K	1050333 Data Sheet	Rheostat, Wirewound, 10 kohm, 25 W, H Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History		Each	1+ ¥39,626.40 (¥43,589.04) 2+ ¥34,673.10 (¥38,140.41) 3+ ¥28,729.14 (¥31,602.05) 5+ ¥25,757.16 (¥28,332.88) 10+ ¥22,471.68 (¥24,718.85) 20+ ¥21,172.23 (¥23,289.45) 50+ ¥19,872.77 (¥21,860.05) 100+ ¥19,475.32 (¥21,422.85) More Pricing...	Restricted Item	10kohm	25W	-	H Series	Panel Mount	Flatted	-	± 10%	Solder	34.93mm	-	-

RJS50RE	2145763 Data Sheet + RoHS	Rheostat, Wirewound, 50 ohm, 50 W, J Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History		Each	1+ ¥29,390.63 (¥32,329.69) 2+ ¥27,912.87 (¥30,704.16) 3+ ¥26,435.11 (¥29,078.62) 5+ ¥24,957.35 (¥27,453.09) 10+ ¥23,479.59 (¥25,827.55) 20+ ¥21,744.37 (¥23,918.81) 50+ ¥20,009.14 (¥22,010.05) 100+ ¥18,662.66 (¥20,528.93) More Pricing...	Restricted Item	50ohm	50W	-	J Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-

RHS10KE.	1129866 Data Sheet RoHS	RHEOSTAT, WIREWOUND, 10KOHM, 25W OHMITE You previously purchased this product. View in Order History		Each	1+ ¥20,471.55 (¥22,518.71) 2+ ¥19,434.26 (¥21,377.69) 3+ ¥18,396.97 (¥20,236.67) 5+ ¥17,359.68 (¥19,095.65) 10+ ¥16,322.38 (¥17,954.62) 20+ ¥15,659.33 (¥17,225.26) 50+ ¥14,996.28 (¥16,495.91) 100+ ¥14,696.36 (¥16,166.00) More Pricing...	Restricted Item	10kohm	25W	-	RHS Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-