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.

...
อ่านเพิ่มเติม อ่านน้อยกว่า

คัดกรอง / Filters

กำลังดูสินค้า 241 - 250 รายการจาก 250 รายการ / Viewing 241 - 250 of 250 products
ผลการค้นหาต่อหน้า / Results Per Page
รายละเอียดสินค้า / Description ราคา / 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. 788-7703
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT055AS10R0KB
Brand :Vishay
THB10,437.75
Each
Units
10Ω ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 788-7804
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS10R0KB
Brand :Vishay
THB2,759.13
Each
Units
10Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 144-5521
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RES100E
Brand :Arcol Ohmite
THB1,666.80
Each
Units
100Ω 10% 12.5W 300 ° Panel Mount 3.18 mm - Solder 22.23 (Dia.) x 17.46mm 22.23 (Dia.)mm - 17.46mm - Linear Shaft
RS Stock No. 788-7700
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT055AS2201KB
Brand :Vishay
THB9,149.04
Each
Units
2.2kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 891-5329
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RES1K5E
Brand :Arcol Ohmite
THB1,744.34
Each
Units
1.5kΩ ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 788-7801
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS15R0KB
Brand :Vishay
THB3,750.95
Each
Units
15Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 2509192940
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RNS2R0E
Brand :Ohmite
THB7,845.08
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 2508305924
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.232P19
Brand :Ohmite
THB2,739.92
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 2509031132
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.232P21
Brand :Ohmite
THB2,209.22
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 2509192647
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RKS300E
Brand :Ohmite
THB3,414.46
Each
Units
- - - - - - - - - - - - - -
Related Products
Ohmite RH series wirewound rheostats are designed and ...
Description:
Ohmite RH series wirewound rheostats are designed and manufactured to operate smoothly and reliably over long periods of use. The RH series has a ceramic body with high grade resistance alloy linear taper windings and a vitreous enamel coating. HR ...
Ohmite RK Series wirewound potentiometers are designed and ...
Description:
Ohmite RK Series wirewound potentiometers are designed and manufactured to operate smoothly and reliably over long periods of use. The RK Series has a ceramic body, high-grade resistance alloy linear taper windings, vitreous enamel coating, metal spring contact arm, metal ...
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. ...
Ohmite RE Series wirewound potentiometers are designed and ...
Description:
Ohmite RE Series wirewound potentiometers are designed and manufactured to operate smoothly and reliably over long periods of use. The RE Series has a ceramic body, high-grade resistance alloy linear taper windings, vitreous enamel coating, metal spring contact arm, metal ...