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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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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	-	-
RES3R0	01F3484 Data Sheet	Rheostat, Wirewound, 3 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	-	3ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-
RES6R0	01F3485 Data Sheet Data Sheet	Rheostat, 6 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	10+ $47.66 25+ $47.29 50+ $46.90 100+ $45.49	Restricted Item Minimum order of 10 items Multiples of 1 only Please enter a valid quantity Add	-	6ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-
RES8R0	01F3486 Data Sheet	Rheostat, Wirewound, 8 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	5+ $74.72 10+ $70.97 25+ $59.77 50+ $56.04 100+ $54.17	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	8ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-
RES10R	01F3487 Data Sheet	Rheostat, Wirewound, 10 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $85.86	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	-	-

RES25R	01F3489 Data Sheet	Rheostat, Wirewound, 25 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	5+ $70.79 10+ $67.24 25+ $56.62 50+ $53.09 100+ $51.32	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	25ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RES35R	01F3490 Data Sheet	Rheostat, 35 ohm, 12.5 W, RES Series, Panel Mount OHMITE You previously purchased this product. View in Order History	Each	5+ $70.79 10+ $67.24 25+ $56.62 50+ $53.09 100+ $51.32	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	35ohm	12.5W	RES Series	-	Panel Mount	-	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RES50R	01F3491 Data Sheet Data Sheet	Rheostat, 50 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	5+ $70.79 10+ $67.24 25+ $56.62 50+ $53.09 100+ $51.32	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	50ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RES75R	01F3492 Data Sheet	Rheostat, 75 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $85.86	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	75ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RES100	01F3493 Data Sheet	Rheostat, Wirewound, 100 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	5+ $70.79 10+ $67.24 25+ $56.62 50+ $53.09 100+ $51.32	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	100ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RES250	01F3496 Data Sheet	Rheostat, Wirewound, 250 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	5+ $70.79 10+ $67.24 25+ $56.62 50+ $53.09 100+ $51.32	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	250ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RES500	01F3498 Data Sheet	Rheostat, Wirewound, 500 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	10+ $71.82 25+ $66.66 50+ $65.25 100+ $61.50	Restricted Item Minimum order of 10 items Multiples of 1 only Please enter a valid quantity Add	-	500ohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RES5K0	01F3504 Data Sheet	Rheostat, Wirewound, 5 kohm, 12.5 W, RES Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	5+ $77.44 10+ $73.56 25+ $61.94 50+ $58.08 100+ $56.14	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	5kohm	12.5W	RES Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

RES10K	01F3506 Data Sheet	Rheostat, 10 kohm, 12.5 W, RES Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	5+ $83.60 10+ $79.41 25+ $66.87 50+ $62.70 100+ $60.61	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	10kohm	12.5W	RES Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	-	-	-	-	-

RHS2R0	01F7546 Data Sheet	Rheostat, Wirewound, 2 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $85.48 10+ $81.19 25+ $68.37 50+ $64.11 100+ $61.97	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	2ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS6R0	01F7548 Data Sheet	Rheostat, Wirewound, 6 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $103.66	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	6ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS10R	01F7550 Data Sheet	Rheostat, Wirewound, 10 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $65.43 10+ $60.67 25+ $56.31 50+ $55.12 100+ $51.95	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	10ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS15R	01F7551 Data Sheet Date/Lot Code	Rheostat, Wirewound, 15 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $83.87 5+ $79.87 10+ $75.88 25+ $74.18 50+ $72.48 100+ $70.81 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	15ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS25R	01F7552 Data Sheet Date/Lot Code	Rheostat, Wirewound, 25 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $101.83 5+ $97.48 10+ $93.12 25+ $77.59 50+ $72.75 100+ $70.31 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	25ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS35R	01F7553 Data Sheet	Rheostat, Wirewound, 35 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $99.08	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	35ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS50R	01F7554 Data Sheet Date/Lot Code	Rheostat, Wirewound, 50 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $100.89	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	50ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS75R	01F7555 Data Sheet	Rheostat, Wirewound, 75 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	-	75ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS100	01F7556 Data Sheet Date/Lot Code	Rheostat, Wirewound, 100 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	1+ $89.05 5+ $89.05 10+ $82.69 25+ $77.18 50+ $76.04 100+ $73.52 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	-	100ohm	25W	RHS Series	-	Panel Mount	Flatted	-	-	± 10%	-	Solder Lug	-	34.93mm	-	-

RHS175	01F7558 Data Sheet	Rheostat, Wirewound, 175 ohm, 25 W, RHS Series, Panel Mount, Flatted OHMITE You previously purchased this product. View in Order History	Each	5+ $65.30 10+ $63.81 25+ $63.35 50+ $61.10 100+ $60.62	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	175ohm	25W	RHS 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	-	-