Rheostats | e絡盟 Hong Kong

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.

			Price For		Quantity

RT055AS1002KB	1141336 Data Sheet RoHS	VISHAY Rheostat Wirewound 10 kohm 55 W RT Series Panel Mount Rotary	Each	1+ HK$7,839.640 5+ HK$7,197.930 10+ HK$6,556.230	Total:HK$7,839.64 Min: 1 / Mult: 1	10kohm	55W	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	36mm	-55°C	320°C
RT025AS2201KB	1141327 Data Sheet RoHS	VISHAY Rheostat Wirewound 2.2 kohm 25 W RT Series Panel Mount Rotary	Each	1+ HK$3,128.870 5+ HK$2,730.200 10+ HK$2,331.530	Total:HK$3,128.87 Min: 1 / Mult: 1	2.2kohm	25W	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C
RT025AS22R0KB	1141318 Data Sheet RoHS	VISHAY Rheostat Wirewound 22 ohm 25 W RT Series Panel Mount Rotary	Each	1+ HK$2,022.060 5+ HK$1,980.510 10+ HK$1,938.960	Total:HK$2,022.06 Min: 1 / Mult: 1	22ohm	25W	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C
RT025AS10R0KB	1141316 Data Sheet RoHS	VISHAY Rheostat Wirewound 10 ohm 25 W RT Series Panel Mount Rotary	Each	1+ HK$2,982.260 5+ HK$2,830.520 10+ HK$2,678.770	Total:HK$2,982.26 Min: 1 / Mult: 1	10kohm	25W	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C
RT012AS1001KB	1141312 Data Sheet RoHS	VISHAY Rheostat Wirewound 1 kohm 12 W RT12 Series Panel Mount Screwdriver Slot	Each	1+ HK$4,339.710 5+ HK$3,797.240 10+ HK$3,146.290	Total:HK$4,339.71 Min: 1 / Mult: 1	1kohm	12W	RT12 Series	Panel Mount	Screwdriver Slot	-	± 10%	Solder Lug	17mm	-55°C	320°C
RT025AS2200KB	1141322 Data Sheet RoHS	VISHAY Rheostat Wirewound 220 ohm 25 W RT Series Panel Mount Rotary	Each	1+ HK$2,702.720 5+ HK$2,517.130 10+ HK$2,331.530	Total:HK$2,702.72 Min: 1 / Mult: 1	220ohm	25W	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C
RT025AS1000KB	1141320 Data Sheet RoHS	VISHAY Rheostat Wirewound 100 ohm 25 W RT Series Panel Mount Rotary	Each	1+ HK$2,021.040 5+ HK$1,980.620 10+ HK$1,940.200	Total:HK$2,021.04 Min: 1 / Mult: 1	100ohm	25W	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C
RT025AS4R70KB	1141315 Data Sheet RoHS	VISHAY Rheostat Wirewound 4.7 ohm 25 W RT Series Panel Mount Rotary	Each	1+ HK$2,933.960 5+ HK$2,732.340 10+ HK$2,530.710	Total:HK$2,933.96 Min: 1 / Mult: 1	4.7ohm	25W	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	25mm	-55°C	320°C
RT055AS1001KB	1141333 Data Sheet RoHS	VISHAY Rheostat Wirewound 1 kohm 55 W RT Series Panel Mount Rotary	Each	1+ HK$6,934.960 5+ HK$6,888.980 10+ HK$6,842.990	Total:HK$6,934.96 Min: 1 / Mult: 1	1kohm	55W	RT Series	Panel Mount	Rotary	-	± 10%	Solder Lug	36mm	-55°C	320°C
RJS50RE	2145763 Data Sheet RoHS	OHMITE Rheostat Wirewound 50 ohm 50 W J Series Panel Mount Flatted	Each	1+ HK$1,373.540 2+ HK$1,342.360 3+ HK$1,311.180 5+ HK$1,280.000 10+ HK$1,248.820 More Pricing...	Total:HK$1,373.54 Min: 1 / Mult: 1	50ohm	50W	J Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RJS1K0E.	1129893 Data Sheet RoHS	OHMITE RHEOSTAT WIREWOUND 1KOHM 50W	Each	5+ HK$1,230.440 10+ HK$1,201.290 20+ HK$1,177.270	Total:HK$6,152.20 Min: 5 / Mult: 5	-	-	-	-	-	-	-	-	-	-	-
RHS10K	1050333 Data Sheet	OHMITE Rheostat Wirewound 10 kohm 25 W H Series Panel Mount Flatted	Each	1+ HK$2,335.810 2+ HK$2,043.840 3+ HK$1,693.470 5+ HK$1,518.280 10+ HK$1,361.410 More Pricing...	Total:HK$2,335.81 Min: 1 / Mult: 1	10kohm	25W	H Series	Panel Mount	Flatted	-	± 10%	Solder	34.93mm	-	-
RT055AS50R0KB	4733164 Data Sheet RoHS	VISHAY Rheostat Wirewound 50 ohm 55 W RT55 Series Panel Mount Rotary	Each	1+ HK$6,542.050 2+ HK$5,898.600 3+ HK$5,603.630 5+ HK$5,323.490 10+ HK$5,057.340	Total:HK$6,542.05 Min: 1 / Mult: 1	50ohm	55W	RT55 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	64mm	-55°C	320°C
RT025AS25R0KB	4733156 Data Sheet RoHS	VISHAY Rheostat Wirewound 25 ohm 25 W RT25 Series Panel Mount Rotary	Each	1+ HK$2,144.630 2+ HK$2,037.380 3+ HK$1,935.490 5+ HK$1,933.640 10+ HK$1,837.000 More Pricing...	Total:HK$2,144.63 Min: 1 / Mult: 1	25ohm	25W	RT25 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	50mm	-55°C	320°C
RT025AS2501KB	4733154 Data Sheet RoHS	VISHAY Rheostat Wirewound 2.5 kohm 25 W RT25 Series Panel Mount Rotary	Each	1+ HK$2,250.020 2+ HK$2,137.520 3+ HK$2,030.590 5+ HK$2,028.740 10+ HK$1,927.260 More Pricing...	Total:HK$2,250.02 Min: 1 / Mult: 1	2.5kohm	25W	RT25 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	50mm	-55°C	320°C
RT025AS75R0KB	4733159 Data Sheet RoHS	VISHAY Rheostat Wirewound 75 ohm 25 W RT25 Series Panel Mount Rotary	Each	1+ HK$2,144.630 2+ HK$2,037.380 3+ HK$1,935.490 5+ HK$1,933.640 10+ HK$1,837.000 More Pricing...	Total:HK$2,144.63 Min: 1 / Mult: 1	75ohm	25W	RT25 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	50mm	-55°C	320°C
RT025AS250RKB	4733155 Data Sheet RoHS	VISHAY Rheostat Wirewound 250 ohm 25 W RT25 Series Panel Mount Rotary	Each	1+ HK$2,250.020 2+ HK$2,137.520 3+ HK$2,030.590 5+ HK$2,028.740 10+ HK$1,927.260 More Pricing...	Total:HK$2,250.02 Min: 1 / Mult: 1	250ohm	25W	RT25 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	50mm	-55°C	320°C
RT055AS5001KB	4733163 Data Sheet RoHS	VISHAY Rheostat Wirewound 5 kohm 55 W RT55 Series Panel Mount Rotary	Each	1+ HK$7,354.800 2+ HK$6,631.380 3+ HK$6,299.770 5+ HK$5,984.840 10+ HK$5,685.550	Total:HK$7,354.80 Min: 1 / Mult: 1	5kohm	55W	RT55 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	64mm	-55°C	320°C
RT025AS100RKB	4733152 Data Sheet RoHS	VISHAY Rheostat Wirewound 100 ohm 25 W RT25 Series Panel Mount Rotary	Each	1+ HK$1,949.700 2+ HK$1,852.230 3+ HK$1,759.610 5+ HK$1,757.960 10+ HK$1,670.070 More Pricing...	Total:HK$1,949.70 Min: 1 / Mult: 1	100ohm	25W	RT25 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	50mm	-55°C	320°C
RT025AS175RKB	4733153 Data Sheet RoHS	VISHAY Rheostat Wirewound 175 ohm 25 W RT25 Series Panel Mount Rotary	Each	1+ HK$2,250.020 2+ HK$2,137.520 3+ HK$2,030.590 5+ HK$2,028.740 10+ HK$1,927.260 More Pricing...	Total:HK$2,250.02 Min: 1 / Mult: 1	175ohm	25W	RT25 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	50mm	-55°C	320°C
RT025AS50R0KB	4733158 Data Sheet RoHS	VISHAY Rheostat Wirewound 50 ohm 25 W RT25 Series Panel Mount Rotary	Each	1+ HK$2,144.630 2+ HK$2,037.380 3+ HK$1,935.490 5+ HK$1,933.640 10+ HK$1,837.000 More Pricing...	Total:HK$2,144.63 Min: 1 / Mult: 1	50ohm	25W	RT25 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	50mm	-55°C	320°C
RT055AS2501KB	4733162 Data Sheet RoHS	VISHAY Rheostat Wirewound 2.5 kohm 55 W RT55 Series Panel Mount Rotary	Each	1+ HK$6,542.050 2+ HK$5,898.600 3+ HK$5,603.630 5+ HK$5,323.490 10+ HK$5,057.340	Total:HK$6,542.05 Min: 1 / Mult: 1	2.5kohm	55W	RT55 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	64mm	-55°C	320°C
RT055AS150RKB	4733160 Data Sheet RoHS	VISHAY Rheostat Wirewound 150 ohm 55 W RT55 Series Panel Mount Rotary	Each	1+ HK$5,947.480 2+ HK$5,362.490 3+ HK$5,094.390 5+ HK$4,839.660 10+ HK$4,597.700	Total:HK$5,947.48 Min: 1 / Mult: 1	150ohm	55W	RT55 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	64mm	-55°C	320°C
RT025AS500RKB	4733157 Data Sheet RoHS	VISHAY Rheostat Wirewound 500 ohm 25 W RT25 Series Panel Mount Rotary	Each	1+ HK$2,250.020 2+ HK$2,137.520 3+ HK$2,030.590 5+ HK$2,028.740 10+ HK$1,927.260 More Pricing...	Total:HK$2,250.02 Min: 1 / Mult: 1	500ohm	25W	RT25 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	50mm	-55°C	320°C
RT055AS16R0KB	4733161 Data Sheet RoHS	VISHAY Rheostat Wirewound 16 ohm 55 W RT55 Series Panel Mount Rotary	Each	1+ HK$7,458.440 2+ HK$6,724.730 3+ HK$6,388.490 5+ HK$6,069.130 10+ HK$5,765.630	Total:HK$7,458.44 Min: 1 / Mult: 1	16ohm	55W	RT55 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	64mm	-55°C	320°C

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