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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	Newark Part No.	Description / Manufacturer	Price for:	Price	Quantity	Resistance	Track Resistance	Power Rating	Product Range	Voltage Rating	Resistor Mounting	Adjustment Type	Temperature Coefficient	Rheostat Type	Resistance Tolerance	Resistor Technology	Resistor Terminals	Product Length	Product Height	Operating Temperature Min	Operating Temperature Max
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RT012AS1001KB	24M7060 Data Sheet + RoHS	RHEOSTAT, 12W 1K0 VISHAY You previously purchased this product. View in Order History	Each	1+ $397.55	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1kohm	12W	RT	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17mm	-55°C	320°C
RHS10K	01F7568 Data Sheet Date/Lot Code	Rheostat, Wirewound, 10 kohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $101.91 5+ $97.55 10+ $93.19 25+ $77.64 50+ $72.80 100+ $70.87 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	10kohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Screw	-	34.93mm	-	-
RJS5K0	01F7594 Data Sheet Date/Lot Code	Rheostat, Wirewound, 5 kohm, 50 W, RJS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $99.49 5+ $90.92 10+ $85.64	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	5kohm	50W	RJS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-
RLS500E	64K5866 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 500 ohm, 150 W, RLS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $160.42 5+ $160.42 10+ $160.42	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	500ohm	150W	RLS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	50.8mm	-	-
RNS50RE	64K5914 Data Sheet + RoHS	Rheostat, Wirewound, 50 ohm, 300 W, RNS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $318.52 5+ $318.52 10+ $318.52 25+ $318.52	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	50ohm	300W	RNS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	60.33mm	-	-

RNS100E	64K5901 Data Sheet + RoHS	Rheostat, Wirewound, 100 ohm, 300 W, RNS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $318.52 5+ $318.52 10+ $318.52 25+ $318.52	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	100ohm	300W	RNS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	60.33mm	-	-

RJS50R	01F7582 Data Sheet Date/Lot Code	Rheostat, Wirewound, 50 ohm, 50 W, RJS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $100.42 5+ $100.42 10+ $93.25 25+ $81.06 50+ $79.25 100+ $78.33 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	50ohm	50W	RJS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RLS4K5E	64K5863 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 4.5 kohm, 150 W, RLS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $225.37 5+ $225.37 10+ $225.37 25+ $195.32	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	4.5kohm	150W	RLS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	50.8mm	-	-

RES100E	71AK8247 New product + RoHS Date/Lot Code	RHEOSTAT, 100R, 10%, 12.5W, PANEL ROHS COMPLIANT: YES OHMITE You previously purchased this product. View in Order History	Each	1+ $76.21 5+ $74.48 10+ $72.75 25+ $70.50 50+ $67.91 100+ $67.89 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	-	-

RJS8R0E	64K5818 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 8 ohm, 50 W, RJS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $88.66 5+ $88.66 10+ $88.66 25+ $88.66 50+ $88.66 100+ $88.66 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	8ohm	50W	RJS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS1R0E	64K5739 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 1 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $85.60 5+ $85.60 10+ $85.60 25+ $79.49 50+ $74.19 100+ $73.68 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RLS1R0E	64K5848 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 1 ohm, 150 W, RLS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $235.73 5+ $220.02 10+ $220.02 25+ $220.02	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	150W	RLS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	50.8mm	-	-

REL50RE	64K5647 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 50 ohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $114.11 5+ $108.41 10+ $102.71 25+ $88.45 50+ $82.74 100+ $81.22 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	50ohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RJS22R	01F7580 Data Sheet Date/Lot Code	Rheostat, 22 ohm, 50 W, RJS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $18.31 5+ $18.31 10+ $18.31 25+ $18.31 50+ $18.31 100+ $18.31 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	22ohm	50W	RJS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RKS400E	64K5836 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 400 ohm, 100 W, RKS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $164.08	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	400ohm	100W	RKS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	44.45mm	-	-

RKS50RE	64K5839 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 50 ohm, 100 W, RKS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $156.72 5+ $151.52 10+ $146.32 25+ $140.10	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	50ohm	100W	RKS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	44.45mm	-	-

RES1K0E	64K5654 Data Sheet + RoHS	Rheostat, Wirewound, 1 kohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $81.00	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1kohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RLS15RE	64K5852 Data Sheet + RoHS	Rheostat, Wirewound, 15 ohm, 150 W, RLS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $249.04 5+ $236.60 10+ $224.15 25+ $193.03	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	15ohm	150W	RLS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	50.8mm	-	-

RES10KE	64K5657 Data Sheet + RoHS	Rheostat, Wirewound, 10 kohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $92.95	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	10kohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RHS500	01F7561 Data Sheet + RoHS	Rheostat, Wirewound, 500 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $81.68 10+ $77.59 25+ $65.34 50+ $61.26 100+ $59.22	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	500ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RJS10K	01F7596 Data Sheet	Rheostat, Wirewound, 10 kohm, 50 W, RJS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $100.30 10+ $97.54	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	10kohm	50W	RJS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RLS50RE	64K5865 Data Sheet + RoHS	Rheostat, Wirewound, 50 ohm, 150 W, RLS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $214.07 10+ $192.26 25+ $185.44 50+ $182.71 100+ $178.62	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	50ohm	150W	RLS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	50.8mm	-	-

RNS2K5E	64K5905 Data Sheet Data Sheet + RoHS	Rheostat, 2.5 kohm, 300 W, RNS Series, Panel Mount, Rotary OHMITE You previously purchased this product. View in Order History	Each	1+ $479.84	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	2.5kohm	300W	RNS Series	-	Panel Mount	Rotary	-	-	± 10%	-	Solder Lug	-	60.33mm	-	-

RJS1K0E	64K5791 Data Sheet + RoHS	Rheostat, Wirewound, 1 kohm, 50 W, RJS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $126.52 5+ $120.20 10+ $113.88 25+ $98.06 50+ $91.73 100+ $90.04 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1kohm	50W	RJS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS250	01F7559 Data Sheet	Rheostat, Wirewound, 250 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $81.68 10+ $77.59 25+ $65.34 50+ $61.26 100+ $59.22	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	250ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-