Rheostats:

35 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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24M7077

RoHS

Date/Lot Code

Each
1+
$1,451.090
5+
$1,341.270
10+
$1,231.430
Min: 1 / Mult: 1
10kohm
-
55W
RT Series
Panel Mount
-
Rotary
-
-
± 10%
-
Solder Lug
-
36mm
-55°C
320°C
24M7065

RoHS

Date/Lot Code

Each
1+
$516.780
5+
$492.110
10+
$467.430
Min: 1 / Mult: 1
10kohm
-
25W
RT Series
Panel Mount
-
Rotary
-
-
± 10%
-
Solder Lug
-
25mm
-55°C
320°C
24M7069

RoHS

Date/Lot Code

Each
1+
$542.190
5+
$477.370
10+
$412.540
Min: 1 / Mult: 1
2.2kohm
-
25W
RT Series
Panel Mount
-
Rotary
-
-
± 10%
-
Solder Lug
-
25mm
-55°C
320°C
24M7071

RoHS

Date/Lot Code

Each
1+
$394.890
5+
$375.080
10+
$355.270
Min: 1 / Mult: 1
22ohm
-
25W
RT Series
Panel Mount
-
Rotary
-
-
± 10%
-
Solder Lug
-
25mm
-55°C
320°C
24M7060

RoHS

Date/Lot Code

Each
1+
$564.960
Min: 1 / Mult: 1
1kohm
-
12W
RT12 Series
Panel Mount
-
Screwdriver Slot
-
-
± 10%
-
Solder Lug
-
17mm
-55°C
320°C
64K5852

RoHS

Date/Lot Code

Each
1+
$386.970
5+
$377.070
10+
$367.160
25+
$360.140
Min: 1 / Mult: 1
15ohm
-
150W
L Series
Panel Mount
-
Flatted
-
-
± 10%
-
Solder Lug
-
50.8mm
-
-
64K5659

RoHS

Date/Lot Code

Each
1+
$141.010
5+
$136.250
10+
$131.500
Min: 1 / Mult: 1
100ohm
-
12.5W
E Series
Panel Mount
-
Round Shaft
-
-
± 10%
-
Solder Lug
-
17.46mm
-
-
64K5838

RoHS

Date/Lot Code

Each
1+
$361.430
Min: 1 / Mult: 1
5ohm
-
100W
K Series
Panel Mount
-
Flatted
-
-
± 10%
-
Solder Lug
-
44.45mm
-
-
64K5696

RoHS

Date/Lot Code

Each
1+
$188.870
Min: 1 / Mult: 1
200ohm
-
75W
G Series
Panel Mount
-
Flatted
-
-
± 10%
-
Solder Lug
-
44.45mm
-
-
48AK5832

RoHS

Date/Lot Code

Each
1+
$465.110
5+
$462.230
10+
$459.340
Min: 1 / Mult: 1
4.5kohm
-
150W
L Series
Panel Mount
-
Flatted
High Power
-
± 10%
-
Solder Lug
-
73.03mm
-
-
64K5754

RoHS

Date/Lot Code

Each
1+
$183.150
5+
$164.730
10+
$146.320
25+
$133.620
50+
$124.690
More Pricing...
Min: 1 / Mult: 1
3ohm
-
25W
H Series
Panel Mount
-
Flatted
-
-
± 10%
-
Solder Lug
-
34.93mm
-
-
64K5752

RoHS

Date/Lot Code

Each
1+
$164.140
5+
$155.420
10+
$146.690
25+
$144.260
50+
$141.830
Min: 1 / Mult: 1
250ohm
-
25W
H Series
Panel Mount
-
Flatted
-
-
± 10%
-
Solder Lug
-
34.93mm
-
-
64K5678

RoHS

Date/Lot Code

Each
1+
$157.620
5+
$152.630
10+
$147.640
25+
$136.060
50+
$131.500
Min: 1 / Mult: 1
50ohm
-
12.5W
E Series
Panel Mount
-
Round Shaft
-
-
± 10%
-
Solder Lug
-
17.46mm
-
-
64K5647

RoHS

Date/Lot Code

Each
1+
$24.390
5+
$24.390
10+
$24.390
25+
$24.390
50+
$24.390
Min: 1 / Mult: 1
50ohm
-
12.5W
E Series
Panel Mount
-
Screwdriver Slot
-
-
± 10%
-
Solder Lug
-
17.46mm
-
-
64K5813

RoHS

Date/Lot Code

Each
1+
$234.940
5+
$227.030
10+
$219.110
Min: 1 / Mult: 1
50ohm
-
50W
J Series
Panel Mount
-
Flatted
-
-
± 10%
-
Solder Lug
-
34.93mm
-
-
13P3573
Each
1+
$29.280
5+
$28.210
10+
$27.210
25+
$25.940
50+
$25.000
More Pricing...
Min: 4 / Mult: 1
400ohm
400ohm
25W
Dividohm 210 Series
Panel Mount
625V
Slide
High Power, Flame Proof
± 260ppm/°C
± 10%
Wirewound
Solder Lug
50.8mm
-
-
-
24M7073

RoHS

Date/Lot Code

Each
1+
$448.060
Min: 1 / Mult: 1
4.7ohm
-
25W
RT Series
Panel Mount
-
Rotary
-
-
± 10%
-
Solder Lug
-
25mm
-55°C
320°C
24M7066

RoHS

Date/Lot Code

Each
1+
$366.230
5+
$352.450
10+
$338.660
Min: 1 / Mult: 1
100ohm
-
25W
RT Series
Panel Mount
-
Rotary
-
-
± 10%
-
Solder Lug
-
25mm
-55°C
320°C
24M7072

RoHS

Date/Lot Code

Each
1+
$412.540
Min: 1 / Mult: 1
220ohm
-
25W
RT Series
Panel Mount
-
Rotary
-
-
± 10%
-
Solder Lug
-
25mm
-55°C
320°C
64K5800

Date/Lot Code

Each
1+
$213.380
5+
$207.610
10+
$201.830
25+
$190.840
50+
$184.260
Min: 1 / Mult: 1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
64K5757

RoHS

Date/Lot Code

Each
1+
$178.540
5+
$168.310
10+
$158.070
25+
$149.870
50+
$148.180
More Pricing...
Min: 1 / Mult: 1
5ohm
-
25W
H Series
Panel Mount
-
Flatted
-
-
± 10%
-
Solder Lug
-
34.93mm
-
-
64K5759

RoHS

Date/Lot Code

Each
1+
$156.960
5+
$152.430
10+
$147.900
25+
$142.690
50+
$141.170
Min: 1 / Mult: 1
500ohm
-
25W
H Series
Panel Mount
-
Flatted
-
-
± 10%
-
Solder Lug
-
34.93mm
-
-
46AM3142

RoHS

Date/Lot Code

Each
1+
$994.370
5+
$982.030
10+
$968.830
25+
$916.710
Min: 1 / Mult: 1
2.5kohm
-
55W
RT55 Series
Panel Mount
-
Rotary
-
-
± 10%
-
Solder Lug
-
64mm
-55°C
320°C
46AM3140

RoHS

Date/Lot Code

Each
1+
$904.000
5+
$892.790
10+
$880.790
25+
$833.410
Min: 1 / Mult: 1
150ohm
-
55W
RT55 Series
Panel Mount
-
Rotary
-
-
± 10%
-
Solder Lug
-
64mm
-55°C
320°C
46AM3141

RoHS

Date/Lot Code

Each
1+
$1,133.650
5+
$1,119.580
10+
$1,104.540
25+
$1,045.100
Min: 1 / Mult: 1
16ohm
-
55W
RT55 Series
Panel Mount
-
Rotary
-
-
± 10%
-
Solder Lug
-
64mm
-55°C
320°C
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