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Rheostats:

420 Products Found
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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1141341

RoHS

Each
1+
US$182.629
5+
US$166.441
10+
US$156.860
25+
US$151.045
50+
US$148.298
Min: 1 / Mult: 1
1kohm
100W
RT Series
Panel Mount
Rotary
-
± 10%
Solder Lug
-
-
50mm
-55°C
320°C
1141337

RoHS

Each
1+
US$211.506
Min: 1 / Mult: 1
22ohm
100W
RT Series
Panel Mount
Rotary
-
± 10%
Solder Lug
-
-
50mm
-55°C
320°C
1129893

RoHS

Each
1+
US$145.671
5+
US$141.343
10+
US$137.015
25+
US$124.821
50+
US$120.533
More Pricing...
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
4046613

RoHS

Each
5+
US$486.634
Min: 5 / Mult: 5
10ohm
300W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
0
-
-
4046656

RoHS

Each
5+
US$519.826
Min: 5 / Mult: 5
50ohm
225W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
0
-
-
4046394

RoHS

Each
5+
US$111.595
Min: 5 / Mult: 5
200ohm
12.5W
0
Panel Mount
Screwdriver Slot
High Power
± 10%
Solder Lug
-
-
0
-
-
4046601

RoHS

Each
5+
US$263.779
Min: 5 / Mult: 5
0
150W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
73.03mm
-
-
4046526

RoHS

Each
5+
US$78.993
Min: 5 / Mult: 5
0
25W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
53.98mm
-
-
4046667

RoHS

Each
1+
US$870.920
Min: 1 / Mult: 1
1kohm
500W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
0
-
-
4046537

RoHS

Each
5+
US$112.091
Min: 5 / Mult: 5
0
50W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
57.16mm
-
-
4046577

RoHS

Each
5+
US$184.049
Min: 5 / Mult: 5
5kohm
100W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
66.68mm
-
-
4046658

RoHS

Each
5+
US$575.771
Min: 5 / Mult: 5
0
225W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
0
-
-
4046673

RoHS

Each
1+
US$834.445
Min: 1 / Mult: 1
2kohm
500W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
0
-
-
4046454

RoHS

Each
5+
US$175.044
Min: 5 / Mult: 5
0
75W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
66.68mm
-
-
4046455

RoHS

Each
5+
US$145.336
Min: 5 / Mult: 5
200ohm
75W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
66.68mm
-
-
4046597

RoHS

Each
5+
US$296.582
Min: 5 / Mult: 5
0
150W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
73.03mm
-
-
4046709

RoHS

Each
1+
US$1,838.480
Min: 1 / Mult: 1
500ohm
1kW
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
0
-
-
4046384

RoHS

Each
5+
US$162.274
Min: 5 / Mult: 5
0
12.5W
0
Panel Mount
Screwdriver Slot
High Power
± 10%
Solder Lug
-
-
0
-
-
4046624

RoHS

Each
5+
US$449.691
Min: 5 / Mult: 5
0
300W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
0
-
-
4046653

RoHS

Each
5+
US$489.917
Min: 5 / Mult: 5
0
225W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
0
-
-
4046410

RoHS

Each
5+
US$110.282
Min: 5 / Mult: 5
0
12.5W
0
Panel Mount
Screwdriver Slot
High Power
± 10%
Solder Lug
-
-
0
-
-
4046448

RoHS

Each
5+
US$145.336
Min: 5 / Mult: 5
100ohm
75W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
66.68mm
-
-
4046573

RoHS

Each
5+
US$226.460
Min: 5 / Mult: 5
0
100W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
66.68mm
-
-
4046520

RoHS

Each
5+
US$81.780
Min: 5 / Mult: 5
0
25W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
53.98mm
-
-
4046463

RoHS

Each
5+
US$160.626
Min: 5 / Mult: 5
0
75W
0
Panel Mount
Flatted
High Power
± 10%
Solder Lug
-
-
66.68mm
-
-
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