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. 168-0127
Mfr. Part No.RT025AS4700KB
BrandVishay
HK$624.49
Each (In a Pack of 25)
units
470Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 788-7832
Mfr. Part No.RT025AS4700KB
BrandVishay
HK$729.19
Each
units
470Ω ±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
HK$2,283.90
Each
units
10Ω - - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 150mm 446mm - Slide
RS Stock No. 891-5411
Mfr. Part No.RHS2K5E
HK$418.09
Each
units
2.5kΩ ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 827-6404
Mfr. Part No.VRH320 10K K
BrandArcol
HK$1,684.22
Each
units
10kΩ ±10% - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 150mm 446mm - Slide
RS Stock No. 795-4847
Mfr. Part No.RT025AS2201KB
BrandVishay
HK$653.62
Each
units
2.2kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 Dia.x 50mm 50mm - 38 (Dia.)mm +320°C -
RS Stock No. 788-7712
Mfr. Part No.RT055AS4701KB
BrandVishay
HK$1,592.44
Each
units
4.7kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 891-5503
Mfr. Part No.RJS50KE
BrandOhmite
HK$510.48
Each
units
50kΩ ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 167-9886
Mfr. Part No.RT055AS1002KB
BrandVishay
HK$1,450.114
Each (In a Pack of 25)
units
10kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 827-6397
Mfr. Part No.VRH320 33R K
BrandArcol
HK$1,562.02
Each
units
33Ω - - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 150mm 446mm - Slide
RS Stock No. 788-7693
Mfr. Part No.RT055AS1002KB
BrandVishay
HK$1,026.00
Each
units
10kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 167-9889
Mfr. Part No.RT055AS4701KB
BrandVishay
HK$1,450.114
Each (In a Pack of 25)
units
4.7kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 891-5486
Mfr. Part No.RJS2K5E
BrandOhmite
HK$368.03
Each
units
2.5kΩ ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 167-8618
Mfr. Part No.RT025AS2201KB
BrandVishay
HK$696.45
Each (In a Pack of 25)
units
2.2kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 Dia.x 50mm 50mm - 38 (Dia.)mm +320°C -
RS Stock No. 144-5530
Mfr. Part No.RHS5K0E
HK$546.54
Each
units
5kΩ 10% 25W 300 ° Panel Mount 6.35 mm - Solder 39.62 (Dia.) x 34.93mm 39.62 (Dia.)mm - 34.93mm - Linear Shaft
RS Stock No. 168-0124
Mfr. Part No.RT025AS4701KB
BrandVishay
HK$624.49
Each (In a Pack of 25)
units
4.7kΩ ±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
HK$2,270.30
Each
units
10Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 893-5459
Mfr. Part No.RNS75R
BrandOhmite
HK$2,091.464
Each (In a Pack of 5)
units
75Ω ±10% 300W 320 ° Panel Mount 9.53 mm - Solder Lug 152.4 (Dia.) x 60.33mm - - 60.33mm - Linear Shaft
RS Stock No. 788-7823
Mfr. Part No.RT025AS4701KB
BrandVishay
HK$595.40
Each
units
4.7kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 827-6407
Mfr. Part No.VRH320 1K K
BrandArcol
HK$1,398.83
Each
units
1kΩ ±10% - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 150mm 446mm - Slide