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. 891-5597
Mfr. Part No.RLS25RE
BrandOhmite
MYR546.48
Each
units
25Ω ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - - 50.8mm - Linear Shaft
RS Stock No. 892-2440
Mfr. Part No.RRS5R0E
BrandOhmite
MYR1,787.14
Each
units
±10% 500W 325 ° Panel Mount 9.53 mm - Solder Lug 203.2 (Dia.) x 53.98mm - - 53.98mm - Linear Shaft
RS Stock No. 891-5367
Mfr. Part No.RES8R0E
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. 891-5607
Mfr. Part No.RLS4K5E
BrandOhmite
MYR705.60
Each
units
4.5kΩ ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - - 50.8mm - Linear Shaft
RS Stock No. 891-5600
Mfr. Part No.RLS500E
BrandOhmite
MYR656.75
Each
units
500Ω ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - - 50.8mm - Linear Shaft
RS Stock No. 892-8344
Mfr. Part No.RHS125E
BrandOhmite
MYR258.21
Each
units
125Ω ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 891-5553
Mfr. Part No.RKS500E
BrandOhmite
MYR489.96
Each
units
500Ω ±10% 100W 300 ° Panel Mount 6.35 mm - Solder Lug 79.38 (Dia.) x 44.45mm - - 44.45mm - Linear Shaft
RS Stock No. 892-6663
Mfr. Part No.6532E
BrandOhmite
MYR234.96
Each
units
- - - - Coupling Clip - - - - - - - - Linear Shaft
RS Stock No. 144-5540
Mfr. Part No.RLS15RE
MYR557.63
Each
units
15Ω 10% 150W 300 ° Panel Mount 6.35 mm - Solder 101.6 (Dia.) x 50.8mm 101.6 (Dia.)mm - 50.8mm - Linear Shaft
RS Stock No. 788-7719
Mfr. Part No.RT055AS3300KB
BrandVishay
MYR1,319.10
Each
units
330Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 891-5294
Mfr. Part No.RCS100E
MYR878.962
Each (In a Pack of 5)
units
100Ω ±10% 7.5W 300 ° Panel Mount 3.18 mm - Solder Lug 13.08 (Dia.) x 15.88mm - - 15.88mm - Linear Shaft
RS Stock No. 891-5635
Mfr. Part No.RNS25RE
BrandOhmite
MYR1,077.28
Each
units
25Ω ±10% 300W 320 ° Panel Mount 9.53 mm - Solder Lug 152.4 (Dia.) x 60.33mm - - 60.33mm - Linear Shaft
RS Stock No. 892-2450
Mfr. Part No.RUS500E
BrandOhmite
MYR4,110.09
Each
units
500Ω ±10% 1kW 335 ° Panel Mount 9.53 mm - Solder Lug 304.8 (Dia.) x 76.2mm - - 76.2mm - Linear Shaft
RS Stock No. 891-5310
Mfr. Part No.RES10RE
MYR221.93
Each
units
10Ω ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 144-5531
Mfr. Part No.RJS12RE
MYR320.33
Each
units
12Ω 10% 50W 300 ° Panel Mount 6.35 mm - Solder 58.67 (Dia.) x 34.93mm 58.67 (Dia.)mm - 34.93mm - Linear Shaft
RS Stock No. 788-7699
Mfr. Part No.RT055AS1000KB
BrandVishay
MYR1,190.68
Each
units
100Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 891-5569
Mfr. Part No.RKS5R0E
BrandOhmite
MYR615.82
Each
units
±10% 100W 300 ° Panel Mount 6.35 mm - Solder Lug 79.38 (Dia.) x 44.45mm - - 44.45mm - Linear Shaft
RS Stock No. 893-5171
Mfr. Part No.RCS5K0E
BrandOhmite
MYR1,132.40
Each (In a Pack of 5)
units
5kΩ ±10% 7.5W 300 ° Panel Mount 3.18 mm - Solder Lug 13.08 (Dia.) x 15.88mm - - 15.88mm - Linear Shaft
RS Stock No. 891-5376
Mfr. Part No.RHS100E
MYR210.99
Each
units
100Ω ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 893-4702
Mfr. Part No.RLS35RE
BrandOhmite
MYR625.44
Each
units
35Ω ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - - 50.8mm - Linear Shaft
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. ...