Rheostats

A rheostat is a variable resistor which is used to control current within an electrical circuit. They are able to vary the resistance in a circuit without interruption. Rheostats are very similar in construction to potentiometers.How Rheostats OperateRheostats use two connections, even when 3 terminals are present, the first connection is made to one end of the resistive element and the other connection to the wiper (sliding contact). Resistive wire is wound around an insulating ceramic core, as the wiper slides over the windings the resistance, and therefore current, produced is altered.Rheostat TypesSeveral types of rheostats exist, with varying functions and applications. Rotary type – Mostly used in power control applications. Rotary rheostats feature a turnable shaft that adjusts the resistance. They are used to control multiple applications in parallel or to increase the power rating or adjusting range. Slide type – Slide rheostats are often used for education and in laboratory environments. Linear or slide types are constructed of resistive wire wound on an insulating cylinder, a sliding contact moves along the winding to increase or decrease the resistance.

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Description Price Maximum Resistance Tolerance Power Rating Number of Turns Mounting Type Shaft Diameter Mounting Hole Diameter Termination Style Dimensions Depth Height Length Maximum Operating Temperature Actuator Type
RS Stock No. 891-5430
Mfr. Part No.RHS5K0E
MYR256.01
Each
units
5kΩ ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 167-9820
Mfr. Part No.RT025AS47R0KB
BrandVishay
MYR275.75
Each (In a Pack of 25)
units
47Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 788-7703
Mfr. Part No.RT055AS10R0KB
BrandVishay
MYR1,342.46
Each
units
10Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 892-5027
Mfr. Part No.RUS25R
BrandOhmite
MYR4,617.524
Each (In a Pack of 5)
units
25Ω ±10% 1kW 335 ° Panel Mount 9.53 mm - Solder Lug 304.8 (Dia.) x 76.2mm - - 76.2mm - Linear Shaft
RS Stock No. 892-2507
Mfr. Part No.18E-100
BrandOhmite
MYR5.576
Each (In a Pack of 50)
units
- - 175 W, 225 W - - - - - - - - - - -
RS Stock No. 168-0125
Mfr. Part No.RT025AS22R0KB
BrandVishay
MYR281.04
Each (In a Pack of 25)
units
22Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 827-6400
Mfr. Part No.VRH320 10R K
BrandArcol
MYR890.15
Each
units
10Ω - - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 150mm 446mm - Slide
RS Stock No. 891-5593
Mfr. Part No.RLS250E
BrandOhmite
MYR625.44
Each
units
250Ω ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - - 50.8mm - Linear Shaft
RS Stock No. 788-7677
Mfr. Part No.RT500AS1001KB
BrandVishay
MYR5,623.40
Each
units
1kΩ ±10% 500W 1 Panel Mount 10 mm 12mm Solder Lug 143 (Dia.) x 158mm - - 158mm +320°C -
RS Stock No. 788-7826
Mfr. Part No.RT025AS22R0KB
BrandVishay
MYR328.15
Each
units
22Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 892-2453
Mfr. Part No.RUS10RE
BrandOhmite
MYR4,236.266
Each (In a Pack of 5)
units
10Ω ±10% 1kW 335 ° Panel Mount 9.53 mm - Solder Lug 304.8 (Dia.) x 76.2mm - - 76.2mm - Linear Shaft
RS Stock No. 167-9891
Mfr. Part No.RT055AS10R0KB
BrandVishay
MYR1,223.099
Each (In a Pack of 25)
units
10Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 892-2469
Mfr. Part No.RUS50RE
BrandOhmite
MYR4,289.85
Each
units
50Ω ±10% 1kW 335 ° Panel Mount 9.53 mm - Solder Lug 304.8 (Dia.) x 76.2mm - - 76.2mm - Linear Shaft
RS Stock No. 144-5521
Mfr. Part No.RES100E
MYR215.62
Each
units
100Ω 10% 12.5W 300 ° Panel Mount 3.18 mm - Solder 22.23 (Dia.) x 17.46mm 22.23 (Dia.)mm - 17.46mm - Linear Shaft
RS Stock No. 892-8271
Mfr. Part No.RJS1K6E
BrandOhmite
MYR320.85
Each
units
1.6kΩ ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 891-5534
Mfr. Part No.RJSR50E
BrandOhmite
MYR390.72
Each
units
500mΩ ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 891-5345
Mfr. Part No.RES3R0E
MYR234.40
Each
units
±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 891-5464
Mfr. Part No.RJS150E
BrandOhmite
MYR228.43
Each
units
150Ω ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 788-7807
Mfr. Part No.RT025AS1500KB
BrandVishay
MYR344.26
Each
units
150Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 168-0128
Mfr. Part No.RT025AS4R70KB
BrandVishay
MYR429.33
Each (In a Pack of 25)
units
4.7Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
Related Products
The Vishay RT Series of linear wire wound ...
Description:
The Vishay RT Series of linear wire wound rheostats are designed for use in professional and industrial equipment. Particularly in equipment where transients, repeated overloads, impacts and vibrations characterise everyday operation.Suggested accessories for these rheostats include control buttons and displays. ...