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

RT025AS75R0KB	4733159 Data Sheet RoHS	VISHAY Rheostat Wirewound 75 ohm 25 W RT25 Series Panel Mount Rotary	Each	1+ HK$2,609.050 5+ HK$2,454.940 10+ HK$2,296.370	Total:HK$2,609.05 Min: 1 / Mult: 1	75ohm	25W	RT25 Series	Panel Mount	Rotary	-	± 10%	Solder Lug	50mm	-55°C	320°C
RHS10KE.	1129866 Data Sheet RoHS	OHMITE RHEOSTAT WIREWOUND 10KOHM 25W	Each	5+ HK$1,201.870 10+ HK$1,166.750 20+ HK$1,143.420	Total:HK$6,009.35 Min: 5 / Mult: 5	10kohm	25W	RHS Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RHS1K0E.	1129863 Data Sheet RoHS	OHMITE RHEOSTAT WIREWOUND 1KOHM 25W	Each	5+ HK$988.230 10+ HK$978.080 20+ HK$958.520	Total:HK$4,941.15 Min: 5 / Mult: 5	1kohm	25W	RHS Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RHS50RE	2145770 Data Sheet RoHS	OHMITE Rheostat Wirewound 50 ohm 25 W H Series Panel Mount Flatted	Each	1+ HK$1,215.820 2+ HK$1,173.890 3+ HK$1,131.960 5+ HK$1,090.030 10+ HK$1,048.100 More Pricing...	Total:HK$1,215.82 Min: 1 / Mult: 1	50ohm	25W	H Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RJS500E	2145764 Data Sheet RoHS	OHMITE Rheostat Wirewound 500 ohm 50 W J Series Panel Mount Flatted	Each	1+ HK$1,287.550 2+ HK$1,261.240 3+ HK$1,234.930 5+ HK$1,208.620 10+ HK$1,182.310 More Pricing...	Total:HK$1,287.55 Min: 1 / Mult: 1	500ohm	50W	J Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RHS10KE	2145774 Data Sheet RoHS	OHMITE Rheostat Wirewound 10 kohm 25 W H Series Panel Mount Flatted	Each	1+ HK$1,291.130 2+ HK$1,264.060 3+ HK$1,236.980 5+ HK$1,209.900 10+ HK$1,182.820 More Pricing...	Total:HK$1,291.13 Min: 1 / Mult: 1	10kohm	25W	H Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RHS100E.	1129869 Data Sheet RoHS	OHMITE RHEOSTAT WIREWOUND 100OHM 25W	Each	5+ HK$978.380 10+ HK$949.870 20+ HK$930.880	Total:HK$4,891.90 Min: 5 / Mult: 5	100ohm	25W	RHS Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RHS5K0E.	1129885 Data Sheet RoHS	OHMITE RHEOSTAT WIREWOUND 5KOHM 25W	Each	1+ HK$1,200.940 2+ HK$1,168.650 3+ HK$1,136.360 5+ HK$1,104.070 10+ HK$1,071.780 More Pricing...	Total:HK$1,200.94 Min: 1 / Mult: 1	5kohm	25W	RHS Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RHS50RE.	1129886 Data Sheet RoHS	OHMITE RHEOSTAT WIREWOUND 50OHM 25W	Each	5+ HK$1,085.800 10+ HK$1,043.480 20+ HK$1,022.620	Total:HK$5,429.00 Min: 5 / Mult: 5	50ohm	25W	RHS Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RHS100E	2145775 Data Sheet RoHS	OHMITE Rheostat Wirewound 100 ohm 25 W H Series Panel Mount Flatted	Each	1+ HK$1,063.900 2+ HK$1,035.400 3+ HK$1,006.890 5+ HK$978.380 10+ HK$949.870 More Pricing...	Total:HK$1,063.90 Min: 1 / Mult: 1	100ohm	25W	H Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
RHS1K0E	2145772 Data Sheet RoHS	OHMITE Rheostat Wirewound 1 kohm 25 W H Series Panel Mount Flatted	Each	1+ HK$1,018.680 2+ HK$1,008.530 3+ HK$998.380 5+ HK$988.230 10+ HK$978.080 More Pricing...	Total:HK$1,018.68 Min: 1 / Mult: 1	1kohm	25W	H Series	Panel Mount	Flatted	-	± 10%	Solder Lug	34.93mm	-	-
CR2510K	1760713 RoHS	HONEYWELL / CLAROSTAT RESISTORS WIREWOUND VARIABLE ROTARY (PO	Each	Pricing is unavailable. Please contact customer services.		-	-	-	-	-	-	-	-	-	-	-
RKS100E	4046558 Data Sheet RoHS	OHMITE Rheostat 100 ohm 100 W K Series Panel Mount Flatted High Power	Each	1+ HK$2,175.080 5+ HK$2,023.170 10+ HK$1,871.260	Total:HK$2,175.08 Min: 1 / Mult: 1	100ohm	100W	K Series	Panel Mount	Flatted	High Power	± 10%	Solder Lug	66.68mm	-	-
RHS10RE	4046506 Data Sheet RoHS	OHMITE Rheostat 10 ohm 25 W H Series Panel Mount Flatted High Power	Each	1+ HK$1,195.210 2+ HK$1,158.050 3+ HK$1,120.890 5+ HK$1,083.730 10+ HK$1,046.560 More Pricing...	Total:HK$1,195.21 Min: 1 / Mult: 1	10kohm	25W	H Series	Panel Mount	Flatted	High Power	± 10%	Solder Lug	53.98mm	-	-
RKS50RE	4046576 Data Sheet RoHS	OHMITE Rheostat 50 ohm 100 W K Series Panel Mount Flatted High Power	Each	1+ HK$2,273.740 5+ HK$2,047.750 10+ HK$1,821.760	Total:HK$2,273.74 Min: 1 / Mult: 1	50ohm	100W	K Series	Panel Mount	Flatted	High Power	± 10%	Solder Lug	66.68mm	-	-
RJS10KE	4046529 Data Sheet RoHS	OHMITE Rheostat 10 kohm 50 W J Series Panel Mount Flatted High Power	Each	1+ HK$1,474.930 2+ HK$1,429.910 3+ HK$1,384.880 5+ HK$1,339.850 10+ HK$1,294.820 More Pricing...	Total:HK$1,474.93 Min: 1 / Mult: 1	10kohm	50W	J Series	Panel Mount	Flatted	High Power	± 10%	Solder Lug	57.16mm	-	-

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