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 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庫存編號 788-7801
製造零件編號RT025AS15R0KB
BrandVishay
TWD5,028.00
單位
15Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 788-7804
製造零件編號RT025AS10R0KB
BrandVishay
TWD3,765.00
單位
10Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 168-0115
製造零件編號RT012AS2201KB
BrandVishay
TWD4,995.40
/個 (每包:25個)
單位
2.2kΩ ±10% 12W 1 Panel Mount 3 mm 6.5mm Solder Lug 22.5 (Dia.) x 40mm - - 40mm +320°C -
RS庫存編號 788-7807
製造零件編號RT025AS1500KB
BrandVishay
TWD4,421.00
單位
150Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 788-7839
製造零件編號RT025AS4R70KB
BrandVishay
TWD5,240.00
單位
4.7Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 788-7826
製造零件編號RT025AS22R0KB
BrandVishay
TWD3,995.00
單位
22Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 788-7683
製造零件編號RT100AS22R0KB
BrandVishay
TWD11,213.00
單位
22Ω ±10% 100W 1 Panel Mount 6 mm 10.5mm Solder Lug 85 (Dia.) x 81mm - - 81mm +320°C -
RS庫存編號 168-0118
製造零件編號RT025AS15R0KB
BrandVishay
TWD4,458.70
/個 (每包:25個)
單位
15Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 788-7810
製造零件編號RT025AS1001KB
BrandVishay
TWD3,641.00
單位
1kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 168-0125
製造零件編號RT025AS22R0KB
BrandVishay
TWD3,447.50
/個 (每包:25個)
單位
22Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 168-0121
製造零件編號RT025AS1001KB
BrandVishay
TWD3,122.60
/個 (每包:25個)
單位
1kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 168-0126
製造零件編號RT025AS2R20KB
BrandVishay
TWD5,115.40
/個 (每包:25個)
單位
2.2Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 168-0119
製造零件編號RT025AS10R0KB
BrandVishay
TWD3,094.40
/個 (每包:25個)
單位
10Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 788-7817
製造零件編號RT025AS2200KB
BrandVishay
TWD4,594.00
單位
220Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 168-0123
製造零件編號RT025AS2200KB
BrandVishay
TWD3,430.80
/個 (每包:25個)
單位
220Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 788-7674
製造零件編號RT100AS1002KB
BrandVishay
TWD9,365.00
單位
10kΩ ±10% 100W 1 Panel Mount 6 mm 10.5mm Solder Lug 85 (Dia.) x 81mm - - 81mm +320°C -
RS庫存編號 167-9884
製造零件編號RT055AS2201KB
BrandVishay
TWD9,921.20
/個 (每包:25個)
單位
2.2kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS庫存編號 168-0117
製造零件編號RT025AS1000KB
BrandVishay
TWD2,888.90
/個 (每包:25個)
單位
100Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS庫存編號 795-4838
製造零件編號RT055AS1001KB
BrandVishay
TWD11,433.00
單位
1kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm 64mm - 60 (Dia.)mm +320°C -
RS庫存編號 788-7706
製造零件編號RT055AS22R0KB
BrandVishay
TWD12,428.00
單位
22Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -