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 221 - 240 รายการจาก 250 รายการ / Viewing 221 - 240 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. 892-8448
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RLS350E
Brand :Ohmite
THB4,686.044
Each: (In a Pack of 5)
Units
350Ω ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - - 50.8mm - Linear Shaft
RS Stock No. 144-5528
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS25RE
Brand :Arcol Ohmite
THB2,016.69
Each
Units
25Ω 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. 893-5459
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RNS75R
Brand :Ohmite
THB7,499.326
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. 167-9820
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS47R0KB
Brand :Vishay
THB2,101.081
Each: (In a Pack of 25)
Units
47Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 891-5408
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS25KE
Brand :Arcol Ohmite
THB2,400.26
Each
Units
25kΩ ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 892-6698
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RES125E
Brand :Ohmite
THB1,730.47
Each
Units
125Ω ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 891-5597
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RLS25RE
Brand :Ohmite
THB4,248.90
Each
Units
25Ω ±10% 150W 300 ° Panel Mount 6.35 mm - Solder Lug 101.6 (Dia.) x 50.8mm - - 50.8mm - Linear Shaft
RS Stock No. 168-0119
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS10R0KB
Brand :Vishay
THB2,344.57
Each: (In a Pack of 25)
Units
10Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 893-4718
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RNS15RE
Brand :Ohmite
THB7,603.91
Each
Units
15Ω ±10% 300W 320 ° Panel Mount 9.53 mm - Solder Lug 152.4 (Dia.) x 60.33mm - - 60.33mm - Linear Shaft
RS Stock No. 892-2444
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RRS8R0E
Brand :Ohmite
THB13,895.10
Each
Units
±10% 500W 325 ° Panel Mount 9.53 mm - Solder Lug 203.2 (Dia.) x 53.98mm - - 53.98mm - Linear Shaft
RS Stock No. 892-8085
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RUS100E
Brand :Ohmite
THB28,324.28
Each
Units
100Ω ±10% 1kW 335 ° Panel Mount 9.53 mm - Solder Lug 304.8 (Dia.) x 76.2mm - - 76.2mm - Linear Shaft
RS Stock No. 893-5193
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RJS10K
Brand :Ohmite
THB2,717.814
Each: (In a Pack of 5)
Units
10kΩ ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
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. 891-5547
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RKS200E
Brand :Ohmite
THB3,809.49
Each
Units
200Ω ±10% 100W 300 ° Panel Mount 6.35 mm - Solder Lug 79.38 (Dia.) x 44.45mm - - 44.45mm - Linear Shaft
RS Stock No. 891-5626
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RNS200E
Brand :Ohmite
THB8,472.56
Each
Units
200Ω ±10% 300W 320 ° Panel Mount 9.53 mm - Solder Lug 152.4 (Dia.) x 60.33mm - - 60.33mm - Linear Shaft
RS Stock No. 167-8618
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS2201KB
Brand :Vishay
THB2,856.87
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. 167-9884
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT055AS2201KB
Brand :Vishay
THB7,933.122
Each: (In a Pack of 25)
Units
2.2kΩ ±10% 55W 1 Panel Mount 6 mm 10.5mm Solder Lug 60 (Dia.) x 64mm - - 64mm +320°C -
RS Stock No. 891-5411
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS2K5E
Brand :Arcol Ohmite
THB2,085.19
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. 892-6663
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.6532E
Brand :Ohmite
THB1,826.84
Each
Units
- - - - Coupling Clip - - - - - - - - Linear Shaft
RS Stock No. 788-7835
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS47R0KB
Brand :Vishay
THB2,491.95
Each
Units
47Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
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 ...