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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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RRS5R0E	64K5960 Data Sheet + RoHS	Rheostat, Wirewound, 5 ohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $688.72	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	5ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-
RLS15R	01F7633 Data Sheet	Rheostat, Wirewound, 15 ohm, 150 W, RLS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $159.70 10+ $143.43 25+ $138.34 50+ $136.31 100+ $133.26	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	15ohm	150W	RLS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	50.8mm	-	-
RLS2R0E	64K5855 Data Sheet + RoHS	Rheostat, 2 ohm, 150 W, RLS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $268.73	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	2ohm	150W	RLS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	50.8mm	-	-
RNS200E	64K5907 Data Sheet + RoHS	Rheostat, Wirewound, 200 ohm, 300 W, RNS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $440.95	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	200ohm	300W	RNS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	60.33mm	-	-
RNS10RE	64K5900 Data Sheet + RoHS	Rheostat, Wirewound, 10 ohm, 300 W, RNS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $426.20 10+ $412.26 25+ $359.24	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	10ohm	300W	RNS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-mm	60.33mm	-°C	-°C

RES10RE	64K5658 Data Sheet + RoHS	Rheostat, Wirewound, 10 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	5+ $84.55 10+ $80.78 25+ $67.30 50+ $63.10 100+ $61.00	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	10ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RRS250E	64K5955 Data Sheet + RoHS	Rheostat, Wirewound, 250 ohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $721.07	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	250ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RNS150E	64K5903 Data Sheet + RoHS	Rheostat, Wirewound, 150 ohm, 300 W, RNS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $440.95	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	150ohm	300W	RNS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	60.33mm	-	-

RJSR50	01F7572 Data Sheet Data Sheet	Rheostat, 0.5 ohm, 50 W, RJS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $149.76	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	0.5ohm	50W	RJS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RUS100E	64K5971 Data Sheet + RoHS	Rheostat, Wirewound, 100 ohm, 1 kW, RUS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $1,673.84	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	100ohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-

RRS500E	64K5962 Data Sheet + RoHS	Rheostat, Wirewound, 500 ohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $721.07	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	500ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RNS100	01F7640 Data Sheet	Rheostat, Wirewound, 100 ohm, 300 W, RNS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $480.64	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	100ohm	300W	RNS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	60.33mm	-	-

RNS2K5	01F7645 Data Sheet	Rheostat, Wirewound, 2.5 kohm, 300 W, RNS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $523.03	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	2.5kohm	300W	RNS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	60.33mm	-	-

RRS8R0E	64K5964 Data Sheet + RoHS	Rheostat, Wirewound, 8 ohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $688.72	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	8ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RRS2K5E	64K5951 Data Sheet + RoHS	Rheostat, Wirewound, 2.5 kohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $757.96	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	2.5kohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RJS150	01F7585 Data Sheet	Rheostat, Wirewound, 150 ohm, 50 W, RJS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $84.47 10+ $84.45 25+ $84.44 50+ $84.42 100+ $84.39	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	150ohm	50W	RJS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RPS10RE	64K5923 Data Sheet + RoHS	Rheostat, Wirewound, 10 ohm, 225 W, RPS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $440.95	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	10ohm	225W	RPS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RNS1K5	01F7644 Data Sheet	Rheostat, Wirewound, 1.5 kohm, 300 W, RNS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $508.87	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1.5kohm	300W	RNS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	60.33mm	-	-

RRS80RE	64K5965 Data Sheet + RoHS	Rheostat, Wirewound, 80 ohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $721.07	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	80ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RKS2K5E	64K5830 Data Sheet + RoHS	Rheostat, Wirewound, 2.5 kohm, 100 W, RKS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $187.50	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	2.5kohm	100W	RKS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	44.45mm	-	-

RUS1K0E	64K5966 Data Sheet + RoHS	Rheostat, 1 kohm, 1 kW, RUS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $1,614.12	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1kohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-

RHS8R0E	64K5764 Data Sheet + RoHS	Rheostat, Wirewound, 8 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $95.15	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	8ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RKS500E	64K5840 Data Sheet + RoHS	Rheostat, Wirewound, 500 ohm, 100 W, RKS Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $164.08	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	500ohm	100W	RKS Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	44.45mm	-	-

RRS25RE	64K5954 Data Sheet + RoHS	Rheostat, Wirewound, 25 ohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $721.07	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	25ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RUS5R0E	64K5984 Data Sheet + RoHS	Rheostat, Wirewound, 5 ohm, 1 kW, RUS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $1,766.30	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	5ohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-