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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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RJS50RE	92Y3938 Data Sheet + RoHS	RHEOSTAT, WIREWOUND, 50OHM, 50W OHMITE You previously purchased this product. View in Order History	Each	1+ $104.36 5+ $100.32 10+ $96.27 25+ $87.92 50+ $85.62 100+ $84.12 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	50ohm	50W	RJS	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-
RT012AS2201KB	84Y6495 Data Sheet + RoHS	RHEOSTAT, ROTARY, 2K2, PANEL VISHAY You previously purchased this product. View in Order History	Each	1+ $411.23 5+ $404.36 10+ $397.50	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	0	0	0	-	0	0	-	0	0	-	0	0	0	-55°C	0
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	-	-
RUS50RE	64K5985 Data Sheet + RoHS	Rheostat, Wirewound, 50 ohm, 1 kW, RUS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $1,684.72	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	50ohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-
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	-	-

RUS4R0E	64K5982 Data Sheet + RoHS	Rheostat, Wirewound, 4 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	-	4ohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-

RUS25RE	64K5979 Data Sheet + RoHS	Rheostat, Wirewound, 25 ohm, 1 kW, RUS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $1,684.72	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	25ohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-

RUS225E	64K5978 Data Sheet + RoHS	Rheostat, 225 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	-	225ohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-

RUS2R5E	64K5977 Data Sheet + RoHS	Rheostat, Wirewound, 2.5 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	-	2.5ohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-

RUS2K5E	64K5975 Data Sheet + RoHS	Rheostat, 2.5 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	-	2.5kohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-

RUS16RE	64K5973 Data Sheet + RoHS	Rheostat, 16 ohm, 1 kW, RUS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $1,684.72	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	16ohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-

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	-	-

RUS10RE	64K5970 Data Sheet + RoHS	Rheostat, Wirewound, 10 ohm, 1 kW, RUS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $1,684.72	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	10ohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-

RUS1R0E	64K5968 Data Sheet + RoHS	Rheostat, Wirewound, 1 ohm, 1 kW, RUS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $1,847.76	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	1kW	RUS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	76.2mm	-	-

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	-	-

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	-	-

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	-	-

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	-	-

RRS50RE	64K5961 Data Sheet + RoHS	Rheostat, 50 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	-	50ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

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	-	-

RRS40RE	64K5959 Data Sheet + RoHS	Rheostat, Wirewound, 40 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	-	40ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RRS3R0E	64K5956 Data Sheet + RoHS	Rheostat, 3 ohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $772.42 5+ $733.83 10+ $695.25	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	3ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

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	-	-

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	-	-

RRS2R0E	64K5952 Data Sheet + RoHS	Rheostat, 2 ohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $685.08 5+ $685.06 10+ $685.04	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	2ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-