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 Operate
Rheostats 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 Types
Several 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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Omschrijving Prijs 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-stocknr. 788-7823
FabrikantnummerRT025AS4701KB
FabrikantVishay
67,36 €
Each
Aantal stuks
4.7kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS-stocknr. 168-0124
FabrikantnummerRT025AS4701KB
FabrikantVishay
54,312 €
Each (In a Pack of 25)
Aantal stuks
4.7kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS-stocknr. 788-7810
FabrikantnummerRT025AS1001KB
FabrikantVishay
67,36 €
Each
Aantal stuks
1kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS-stocknr. 168-0121
FabrikantnummerRT025AS1001KB
FabrikantVishay
54,312 €
Each (In a Pack of 25)
Aantal stuks
1kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS-stocknr. 168-0123
FabrikantnummerRT025AS2200KB
FabrikantVishay
54,672 €
Each (In a Pack of 25)
Aantal stuks
220Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS-stocknr. 788-7817
FabrikantnummerRT025AS2200KB
FabrikantVishay
77,06 €
Each
Aantal stuks
220Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS-stocknr. 167-9905
FabrikantnummerRT230AS1000KB
FabrikantVishay
634,72 €
Each (In a Pack of 25)
Aantal stuks
100Ω ±10% 250W 1 Panel Mount 10 mm 12mm Solder Lug 143 (Dia.) x 125mm - - 125mm +320°C -
RS-stocknr. 788-7677
FabrikantnummerRT500AS1001KB
FabrikantVishay
1.036,06 €
Each
Aantal stuks
1kΩ ±10% 500W 1 Panel Mount 10 mm 12mm Solder Lug 143 (Dia.) x 158mm - - 158mm +320°C -
RS-stocknr. 788-7687
FabrikantnummerRT230AS1000KB
FabrikantVishay
454,48 €
Each
Aantal stuks
100Ω ±10% 250W 1 Panel Mount 10 mm 12mm Solder Lug 143 (Dia.) x 125mm - - 125mm +320°C -
RS-stocknr. 167-9917
FabrikantnummerRT500AS1001KB
FabrikantVishay
932,457 €
Each (In a Pack of 25)
Aantal stuks
1kΩ ±10% 500W 1 Panel Mount 10 mm 12mm Solder Lug 143 (Dia.) x 158mm - - 158mm +320°C -
RS-stocknr. 788-7839
FabrikantnummerRT025AS4R70KB
FabrikantVishay
89,20 €
Each
Aantal stuks
4.7Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS-stocknr. 167-9907
FabrikantnummerRT500AS1000KB
FabrikantVishay
867,475 €
Each (In a Pack of 25)
Aantal stuks
100Ω ±10% 500W 1 Panel Mount 10 mm 12mm Solder Lug 143 (Dia.) x 158mm - - 158mm +320°C -
RS-stocknr. 168-0122
FabrikantnummerRT025AS1501KB
FabrikantVishay
87,268 €
Each (In a Pack of 25)
Aantal stuks
1.5kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS-stocknr. 788-7813
FabrikantnummerRT025AS1501KB
FabrikantVishay
88,03 €
Each
Aantal stuks
1.5kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS-stocknr. 788-7696
FabrikantnummerRT500AS1000KB
FabrikantVishay
730,30 €
Each
Aantal stuks
100Ω ±10% 500W 1 Panel Mount 10 mm 12mm Solder Lug 143 (Dia.) x 158mm - - 158mm +320°C -
RS-stocknr. 168-0128
FabrikantnummerRT025AS4R70KB
FabrikantVishay
64,13 €
Each (In a Pack of 25)
Aantal stuks
4.7Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS-stocknr. 788-7719
FabrikantnummerRT055AS3300KB
FabrikantVishay
118,40 €
Each
Aantal stuks
330Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS-stocknr. 167-9886
FabrikantnummerRT055AS1002KB
FabrikantVishay
156,184 €
Each (In a Pack of 25)
Aantal stuks
10kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS-stocknr. 788-7683
FabrikantnummerRT100AS22R0KB
FabrikantVishay
184,42 €
Each
Aantal stuks
22Ω ±10% 100W 1 Panel Mount 6 mm 10.5mm Solder Lug 85 (Dia.) x 81mm - - 81mm +320°C -
RS-stocknr. 167-9889
FabrikantnummerRT055AS4701KB
FabrikantVishay
123,50 €
Each (In a Pack of 25)
Aantal stuks
4.7kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -