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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Description Prix 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
N° de stock RS 788-7829
Référence fabricantRT025AS2R20KB
MarqueVishay
103,61 €
Each
Unité
2.2Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
N° de stock RS 891-5317
Référence fabricantRES175E
MarqueArcol Ohmite
45,13 €
Each
Unité
175Ω ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
N° de stock RS 891-5354
Référence fabricantRES500E
MarqueArcol Ohmite
43,46 €
Each
Unité
500Ω ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
N° de stock RS 891-5638
Référence fabricantRNS300E
MarqueOhmite
229,50 €
Each
Unité
300Ω ±10% 300W 320 ° Panel Mount 9.53 mm - Solder Lug 152.4 (Dia.) x 60.33mm - - 60.33mm - Linear Shaft
N° de stock RS 891-5395
Référence fabricantRHS1R0E
MarqueArcol Ohmite
48,08 €
Each
Unité
±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
N° de stock RS 893-3406
Référence fabricantRES2R0E
MarqueOhmite
47,66 €
Each
Unité
±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
N° de stock RS 892-8221
Référence fabricantRKS750E
MarqueOhmite
99,64 €
Each
Unité
750Ω ±10% 100W 300 ° Panel Mount 6.35 mm - Solder Lug 79.38 (Dia.) x 44.45mm - - 44.45mm - Linear Shaft
N° de stock RS 788-7794
Référence fabricantRT025AS1000KB
MarqueVishay
106,45 €
Each
Unité
100Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
N° de stock RS 167-9891
Référence fabricantRT055AS10R0KB
MarqueVishay
288,18 €
Each (In a Pack of 25)
Unité
10Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
N° de stock RS 167-9889
Référence fabricantRT055AS4701KB
MarqueVishay
257,917 €
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4.7kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
N° de stock RS 891-5499
Référence fabricantRJS300E
MarqueOhmite
62,63 €
Each
Unité
300Ω ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
N° de stock RS 891-5442
Référence fabricantRHS750E
MarqueArcol Ohmite
52,52 €
Each
Unité
750Ω ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
N° de stock RS 167-9885
Référence fabricantRT055AS3300KB
MarqueVishay
229,552 €
Each (In a Pack of 25)
Unité
330Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
N° de stock RS 891-5622
Référence fabricantRNS1R0E
MarqueOhmite
274,51 €
Each
Unité
±10% 300W 320 ° Panel Mount 9.53 mm - Solder Lug 152.4 (Dia.) x 60.33mm - - 60.33mm - Linear Shaft
N° de stock RS 788-7826
Référence fabricantRT025AS22R0KB
MarqueVishay
106,76 €
Each
Unité
22Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
N° de stock RS 144-5525
Référence fabricantRHS10RE
MarqueArcol Ohmite
56,70 €
Each
Unité
10Ω 10% 25W 300 ° Panel Mount 6.35 mm - Solder 39.62 (Dia.) x 34.93mm 39.62 (Dia.)mm - 34.93mm - Linear Shaft
N° de stock RS 144-5529
Référence fabricantRHS50RE
MarqueArcol Ohmite
50,04 €
Each
Unité
50Ω 10% 25W 300 ° Panel Mount 6.35 mm - Solder 39.62 (Dia.) x 34.93mm 39.62 (Dia.)mm - 34.93mm - Linear Shaft
N° de stock RS 891-5433
Référence fabricantRHS500E
MarqueArcol Ohmite
40,19 €
Each
Unité
500Ω ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
N° de stock RS 893-1088
Référence fabricantRES200E
MarqueOhmite
43,926 €
Each (In a Pack of 5)
Unité
200Ω ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
N° de stock RS 891-5613
Référence fabricantRLS7R5E
MarqueOhmite
153,928 €
Each (In a Pack of 5)
Unité
7.5Ω ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - - 50.8mm - Linear Shaft