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 1 - 20 รายการจาก 238 รายการ / Viewing 1 - 20 of 238 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. 144-5524
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS10KE
Brand :Arcol Ohmite
THB2,315.45
Each
Units
10kΩ 10% 25W 1 Panel Mount 6.35 mm - Solder 39.62 x 34.93mm 39.62mm - 34.93mm - Linear Shaft
RS Stock No. 891-5398
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS1K0E
Brand :Arcol Ohmite
THB1,896.46
Each
Units
1kΩ ±10% 25W 1 Panel Mount 6.35 mm - Solder Lug 39.62 x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 144-5534
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RJS500E
Brand :Arcol Ohmite
THB2,832.41
Each
Units
500Ω 10% 50W 1 Panel Mount 6.35 mm - Solder 58.67 x 34.93mm 58.67mm - 34.93mm - Linear Shaft
RS Stock No. 891-5509
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RJS500E
Brand :Arcol Ohmite
THB2,627.03
Each
Units
500Ω ±10% 50W 1 Panel Mount 6.35 mm - Solder Lug 58.67 x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 168-0125
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS22R0KB
Brand :Vishay
THB3,567.606
Each: (In a Pack of 25)
Units
22Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 x 50mm - - 50mm +320°C -
RS Stock No. 892-8423
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RES5R0E
Brand :Ohmite
THB1,999.293
Each: (In a Pack of 10)
Units
±10% 12.5W 1 Panel Mount 3.18 mm - Solder Lug 22.23 x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 788-7826
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS22R0KB
Brand :Vishay
THB4,438.80
Each
Units
22Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 x 50mm - - 50mm +320°C -
RS Stock No. 168-0117
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS1000KB
Brand :Vishay
THB4,233.537
Each: (In a Pack of 25)
Units
100Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 x 50mm - - 50mm +320°C -
RS Stock No. 891-5301
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RES10KE
Brand :Arcol Ohmite
THB2,198.28
Each
Units
10kΩ ±10% 12.5W 1 Panel Mount 3.18 mm - Solder Lug 22.23 x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 788-7794
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS1000KB
Brand :Vishay
THB4,704.37
Each
Units
100Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 x 50mm - - 50mm +320°C -
RS Stock No. 893-5216
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RUS75RE
Brand :Ohmite
THB32,681.02
Each: (In a Pack of 5)
Units
75Ω ±10% 1kW 1 Panel Mount 9.53 mm - Solder Lug 304.8 x 76.2mm - - 76.2mm - Linear Shaft
RS Stock No. 892-8221
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RKS750E
Brand :Ohmite
THB4,064.60
Each
Units
750Ω ±10% 100W 1 Panel Mount 6.35 mm - Solder Lug 79.38 x 44.45mm - - 44.45mm - Linear Shaft
RS Stock No. 891-5515
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RJS5K0E
Brand :Ohmite
THB3,145.45
Each
Units
5kΩ ±10% 50W 1 Panel Mount 6.35 mm - Solder Lug 58.67 x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 893-5213
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RUS2R5
Brand :Ohmite
THB39,283.262
Each: (In a Pack of 5)
Units
2.5Ω ±10% 1kW 1 Panel Mount 9.53 mm - Solder Lug 304.8 x 76.2mm - - 76.2mm - Linear Shaft
RS Stock No. 891-5427
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS35RE
Brand :Arcol Ohmite
THB2,005.42
Each
Units
35Ω ±10% 25W 1 Panel Mount 6.35 mm - Solder Lug 39.62 x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 168-0121
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS1001KB
Brand :Vishay
THB3,451.35
Each: (In a Pack of 25)
Units
1kΩ ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 x 50mm - - 50mm +320°C -
RS Stock No. 168-0128
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS4R70KB
Brand :Vishay
THB4,182.675
Each: (In a Pack of 25)
Units
4.7Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 x 50mm - - 50mm +320°C -
RS Stock No. 893-5724
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHL500
Brand :Ohmite
THB2,686.972
Each: (In a Pack of 5)
Units
500Ω ±10% 25W 1 Panel Mount 6.35 mm - Solder Lug 39.62 x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 168-0123
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS2200KB
Brand :Vishay
THB3,711.477
Each: (In a Pack of 25)
Units
220Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 x 50mm - - 50mm +320°C -
RS Stock No. 891-5430
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS5K0E
Brand :Arcol Ohmite
THB2,141.65
Each
Units
5kΩ ±10% 25W 1 Panel Mount 6.35 mm - Solder Lug 39.62 x 34.93mm - - 34.93mm - Linear Shaft