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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RHS50R
RHS50R - Rheostat, Wirewound, 50 ohm, 25 W, RHS Series, Panel Mount, Flatted

01F7554

Rheostat, Wirewound, 50 ohm, 25 W, RHS Series, Panel Mount, Flatted

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- 50ohm 25W RHS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RHS750E
RHS750E - Rheostat, Wirewound, 750 ohm, 25 W, RHS Series, Panel Mount, Flatted

64K5763

Rheostat, Wirewound, 750 ohm, 25 W, RHS Series, Panel Mount, Flatted

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- 750ohm 25W RHS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RLS10KE
RLS10KE - Rheostat, Wirewound, 10 kohm, 150 W, RLS Series, Panel Mount, Flatted

64K5849

Rheostat, Wirewound, 10 kohm, 150 W, RLS Series, Panel Mount, Flatted

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- 10kohm 150W RLS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 50.8mm - -
RJS5K0E
RJS5K0E - Rheostat, Wirewound, 5 kohm, 50 W, RJS Series, Panel Mount, Flatted

64K5812

Rheostat, Wirewound, 5 kohm, 50 W, RJS Series, Panel Mount, Flatted

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- 5kohm 50W RJS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RHS15RE
RHS15RE - Rheostat, Wirewound, 15 ohm, 25 W, RHS Series, Panel Mount, Flatted

64K5745

Rheostat, Wirewound, 15 ohm, 25 W, RHS Series, Panel Mount, Flatted

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- 15ohm 25W RHS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RJS225E
RJS225E - Rheostat, Wirewound, 225 ohm, 50 W, RJS Series, Panel Mount, Flatted

64K5804

Rheostat, Wirewound, 225 ohm, 50 W, RJS Series, Panel Mount, Flatted

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- 225ohm 50W RJS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RKS5K0E
RKS5K0E - Rheostat, Wirewound, 5 kohm, 100 W, RKS Series, Panel Mount, Flatted

64K5837

Rheostat, Wirewound, 5 kohm, 100 W, RKS Series, Panel Mount, Flatted

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- 5kohm 100W RKS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 44.45mm - -
RJS2K5E
RJS2K5E - Rheostat, Wirewound, 2.5 kohm, 50 W, RJS Series, Panel Mount, Flatted

64K5800

Rheostat, Wirewound, 2.5 kohm, 50 W, RJS Series, Panel Mount, Flatted

OHMITE

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- 2.5kohm 50W RJS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RHS3R0E
RHS3R0E - Rheostat, Wirewound, 3 ohm, 25 W, RHS Series, Panel Mount, Flatted

64K5754

Rheostat, Wirewound, 3 ohm, 25 W, RHS Series, Panel Mount, Flatted

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- 3ohm 25W RHS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RHS250E
RHS250E - Rheostat, Wirewound, 250 ohm, 25 W, RHS Series, Panel Mount, Flatted

64K5752

Rheostat, Wirewound, 250 ohm, 25 W, RHS Series, Panel Mount, Flatted

OHMITE

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- 250ohm 25W RHS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RT025AS10R0KB
RT025AS10R0KB - RHEOSTAT, 25W 10R

24M7065

RHEOSTAT, 25W 10R

VISHAY

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- 10ohm 25W RT - Panel Mount Rotary - - ± 10% - Solder Lug - 25mm -55°C 320°C
RES50RE
RES50RE - Rheostat, Wirewound, 50 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft

64K5678

Rheostat, Wirewound, 50 ohm, 12.5 W, RES Series, Panel Mount, Round Shaft

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- 50ohm 12.5W RES Series - Panel Mount Round Shaft - - ± 10% - Solder Lug - 17.46mm - -
RJS500E
RJS500E - Rheostat, Wirewound, 500 ohm, 50 W, RJS Series, Panel Mount, Flatted

64K5815

Rheostat, Wirewound, 500 ohm, 50 W, RJS Series, Panel Mount, Flatted

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- 500ohm 50W RJS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RHS2K5
RHS2K5 - Rheostat, Wirewound, 2.5 kohm, 25 W, RHS Series, Panel Mount, Flatted

01F7565

Rheostat, Wirewound, 2.5 kohm, 25 W, RHS Series, Panel Mount, Flatted

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- 2.5kohm 25W RHS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RT025AS4R70KB
RT025AS4R70KB - RHEOSTAT, 25W 4R7

24M7073

RHEOSTAT, 25W 4R7

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- 4.7ohm 25W RT - Panel Mount Rotary - - ± 10% - Solder Lug - 25mm -55°C 320°C
RJS50RE
RJS50RE - RHEOSTAT, WIREWOUND, 50OHM, 50W

92Y3938

RHEOSTAT, WIREWOUND, 50OHM, 50W

OHMITE

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- 50ohm 50W RJS - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RT025AS2201KB
RT025AS2201KB - RHEOSTAT, 25W 2K2

24M7069

RHEOSTAT, 25W 2K2

VISHAY

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- 0 0 0 - 0 0 - 0 0 - 0 0 0 -55°C 0
RT025AS1001KB
RT025AS1001KB - RHEOSTAT, 25W 1K0

24M7064

RHEOSTAT, 25W 1K0

VISHAY

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RJS50KE
RJS50KE - Rheostat, Wirewound, 50 kohm, 50 W, RJS Series, Panel Mount, Flatted

64K5813

Rheostat, Wirewound, 50 kohm, 50 W, RJS Series, Panel Mount, Flatted

OHMITE

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- 50kohm 50W RJS Series - Panel Mount Flatted - - ± 10% - Solder Lug - 34.93mm - -
RT025AS4700KB
RT025AS4700KB - RHEOSTAT, 25W 470R

24M7075

RHEOSTAT, 25W 470R

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RT025AS1500KB
RT025AS1500KB - RHEOSTAT, 25W 150R

24M7068

RHEOSTAT, 25W 150R

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RT012AS2200KB
RT012AS2200KB - RHEOSTAT, 12W 220R

24M7062

RHEOSTAT, 12W 220R

VISHAY

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- 220ohm 12W RT - Panel Mount Rotary - - ± 10% - Solder Lug - 17mm -55°C 320°C
RLSR50E
RLSR50E - Rheostat, Wirewound, 0.5 ohm, 150 W, RLS Series, Panel Mount, Flatted

64K5845

Rheostat, Wirewound, 0.5 ohm, 150 W, RLS Series, Panel Mount, Flatted

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- 0.5ohm 150W RLS Series - Panel Mount Flatted - - ± 10% - Solder Lug -mm 50.8mm -°C -°C
RT025AS22R0KB
RT025AS22R0KB - RHEOSTAT, 25W 22R

24M7071

RHEOSTAT, 25W 22R

VISHAY

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- 22ohm 25W RT - Panel Mount Rotary - - ± 10% - Solder Lug - 25mm -55°C 320°C
RT012AS2201KB
RT012AS2201KB - RHEOSTAT, ROTARY, 2K2, PANEL

84Y6495

RHEOSTAT, ROTARY, 2K2, PANEL

VISHAY

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- 0 0 0 - 0 0 - 0 0 - 0 0 0 -55°C 0