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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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D25K400	13P3573 Data Sheet	Rheostat, 400 ohm, 25 W, 210 Series, Panel Mount, Slide, High Power, Flame Proof OHMITE You previously purchased this product. View in Order History	Each	1+ $21.90 5+ $21.10 10+ $20.35 25+ $19.41	Restricted Item Minimum order of 4 items Multiples of 1 only Please enter a valid quantity Add	400ohm	400ohm	25W	210 Series	625V	Panel Mount	Slide	± 260ppm/°C	High Power, Flame Proof	± 10%	Wirewound	Solder Lug	50.8mm	-	-	-
RCL10R	13B305 Data Sheet	Rheostat, 10 ohm, 7.5 W, RCL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $381.36	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	10ohm	7.5W	RCL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	15.88mm	-	-
RCS50RE	64K5588 Data Sheet + RoHS	Rheostat, 50 ohm, 7.5 W, RCS Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $332.93	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	50ohm	7.5W	RCS Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	15.88mm	-	-
REE25R	13B319 Data Sheet + RoHS	Rheostat, 25 ohm, 12.5 W, REE Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	5+ $177.56 10+ $168.21 25+ $144.85 50+ $135.50	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	25ohm	12.5W	REE Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	30.96mm	-	-
REE5K0E	64K5614 Data Sheet + RoHS	Rheostat, 5 kohm, 12.5 W, REE Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $202.18	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	5kohm	12.5W	REE Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	30.96mm	-	-

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	-	-

REL10KE	64K5626 Data Sheet + RoHS	Rheostat, Wirewound, 10 kohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $142.48	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	10kohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

REL5R0E	64K5646 Data Sheet + RoHS	Rheostat, Wirewound, 5 ohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $113.97	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	5ohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

REL10RE	64K5627 Data Sheet + RoHS	Rheostat, 10 ohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $106.85	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	10ohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

REL1R0E	64K5625 Data Sheet + RoHS	Rheostat, 1 ohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $113.97	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	1ohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

REL6R0E	64K5649 Data Sheet + RoHS	Rheostat, 6 ohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $113.97	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	6ohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

REL25RE	64K5639 Data Sheet + RoHS	Rheostat, 25 ohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $106.85	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	25ohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

REL100E	64K5628 Data Sheet + RoHS	Rheostat, 100 ohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $106.85	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	100ohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

REL35R	13B330 Data Sheet + RoHS	Rheostat, 35 ohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	5+ $96.00 10+ $91.19 25+ $76.80 50+ $72.00 100+ $69.59	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	35ohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

REL25R	13B329 Data Sheet + RoHS	Rheostat, 25 ohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	5+ $96.00 10+ $91.19 25+ $76.80 50+ $72.00 100+ $69.59	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	25ohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

REL250E	64K5640 Data Sheet + RoHS	Rheostat, 250 ohm, 12.5 W, REL Series, Panel Mount, Screwdriver Slot OHMITE You previously purchased this product. View in Order History	Each	1+ $106.85	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	250ohm	12.5W	REL Series	-	Panel Mount	Screwdriver Slot	-	-	± 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	-	-

RES25RE	64K5670 Data Sheet + RoHS	Rheostat, Wirewound, 25 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $78.76	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	-	-

RES5K0E	64K5676 Data Sheet + RoHS	Rheostat, Wirewound, 5 kohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $86.17	Restricted Item Minimum order of 5 items Multiples of 1 only Please enter a valid quantity Add	-	5kohm	12.5W	RES Series	-	Panel Mount	Round Shaft	-	-	± 10%	-	Solder Lug	-	17.46mm	-	-

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	-	-

RES250E	64K5671 Data Sheet + RoHS	Rheostat, Wirewound, 250 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $78.76	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	-	-

RES6R0E	64K5680 Data Sheet + RoHS	Rheostat, Wirewound, 6 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $83.20	Restricted Item Minimum order of 5 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	-	-

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	-	-

RES500E	64K5679 Data Sheet + RoHS Date/Lot Code	Rheostat, Wirewound, 500 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft OHMITE You previously purchased this product. View in Order History	Each	1+ $90.84 5+ $86.96 10+ $83.08 25+ $69.21 50+ $61.58 100+ $60.07 More Pricing...	Restricted Item Minimum order of 1 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	-	-

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	-	-