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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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RKSR50E	64K5821 Data Sheet + RoHS	Rheostat, Wirewound, 0.5 ohm, 100 W, RKS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $212.69	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	0.5ohm	100W	RKS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	44.45mm	-	-
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	-	-
RJSR50E	64K5790 Data Sheet + RoHS	Rheostat, Wirewound, 0.5 ohm, 50 W, RJS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $137.37	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	-	-
RLSR50E	64K5845 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 0.5 ohm, 150 W, RLS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $303.75 5+ $288.58 10+ $273.41 25+ $235.45	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	0.5ohm	150W	RLS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-mm	50.8mm	-°C	-°C
RKSR50	01F7598 Data Sheet	Rheostat, Wirewound, 0.5 ohm, 100 W, RKS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $231.86	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	0.5ohm	100W	RKS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	44.45mm	-	-

RHS1K0E	64K5737 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 1 kohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $94.60 5+ $90.80 10+ $87.01 25+ $78.36 50+ $76.25 100+ $73.70 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1kohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-mm	34.93mm	-°C	-°C

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	-	-

RGS1K0E	64K5686 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 1 kohm, 75 W, RGS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $148.51 10+ $140.70 25+ $121.17 50+ $113.35 100+ $111.26	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1kohm	75W	RGS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	44.45mm	-	-

RRS1K0E	64K5942 + RoHS	Rheostat, Wirewound, 1 kohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $730.26	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1kohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RES1R0	01F3482 Data Sheet	Rheostat, Wirewound, 1 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $90.65	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RRS1K0	01F7661 Data Sheet	Rheostat, Wirewound, 1 kohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $689.15 5+ $654.70 10+ $620.24	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1kohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RUS1R0E	64K5968 + 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	-	-

RJS1K0	01F7590 Data Sheet Date/Lot Code	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	-	-

RUS1R0	04F8887 Data Sheet	Rheostat, Wirewound, 1 ohm, 1 kW, RUS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $2,014.06	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	-	-

RNS1R0E	64K5899 Data Sheet + RoHS	Rheostat, Wirewound, 1 ohm, 300 W, RNS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $520.22	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	300W	RNS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	60.33mm	-	-

RKS1K0	01F7615 Data Sheet	Rheostat, Wirewound, 1 kohm, 100 W, RKS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $168.11 10+ $159.25 25+ $137.14 50+ $128.29 100+ $119.43	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1kohm	100W	RKS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	44.45mm	-	-

RNS1R0	01F7634 Data Sheet	Rheostat, Wirewound, 1 ohm, 300 W, RNS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $567.03	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	300W	RNS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	60.33mm	-	-

RPS1R0E	64K5922 Data Sheet + RoHS	Rheostat, Wirewound, 1 ohm, 225 W, RPS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $505.74	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	225W	RPS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RRS1R0E	64K5944 Data Sheet + RoHS	Rheostat, Wirewound, 1 ohm, 500 W, RRS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $776.53	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	500W	RRS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	53.98mm	-	-

RHS1K0	01F7563 Data Sheet Date/Lot Code	Rheostat, Wirewound, 1 kohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $94.64 5+ $90.07 10+ $85.51 25+ $81.97 50+ $75.59 100+ $73.70 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	1kohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RKS1K0E	64K5822 Data Sheet + RoHS	Rheostat, Wirewound, 1 kohm, 100 W, RKS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $210.28 5+ $199.77 10+ $189.27 25+ $162.99	Restricted Item	-	1kohm	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	-	-

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	-	-

RJS1R0E	64K5793 Data Sheet + RoHS	Rheostat, Wirewound, 1 ohm, 50 W, RJS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $122.73	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	50W	RJS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RES1R0E	64K5656 Data Sheet + RoHS	Rheostat, 1 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	5+ $79.24 10+ $75.29 25+ $63.39 50+ $59.44 100+ $57.45	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-