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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กำลังดูสินค้า 1 - 20 รายการจาก 253 รายการ / Viewing 1 - 20 of 253 products
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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
THB1,972.55
Each
Units
10kΩ 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. 891-5379
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS10KE
Brand :Arcol Ohmite
THB1,169.31
Each
Units
10kΩ ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 891-5398
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS1K0E
Brand :Arcol Ohmite
THB1,819.60
Each
Units
1kΩ ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 144-5526
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS1K0E
Brand :Arcol Ohmite
THB1,819.60
Each
Units
1kΩ 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. 891-5509
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RJS500E
Brand :Arcol Ohmite
THB2,125.78
Each
Units
500Ω ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 167-9895
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT100AS1000KB
Brand :Vishay
THB10,256.44
Each: (In a Pack of 25)
Units
100Ω ±10% 100W 1 Panel Mount 6 mm 10.5mm Solder Lug 85 (Dia.) x 81mm - - 81mm +320°C -
RS Stock No. 788-7671
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT100AS1000KB
Brand :Vishay
THB7,378.32
Each
Units
100Ω ±10% 100W 1 Panel Mount 6 mm 10.5mm Solder Lug 85 (Dia.) x 81mm - - 81mm +320°C -
RS Stock No. 144-5534
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RJS500E
Brand :Arcol Ohmite
THB2,216.46
Each
Units
500Ω 10% 50W 300 ° Panel Mount 6.35 mm - Solder 58.67 (Dia.) x 34.93mm 58.67 (Dia.)mm - 34.93mm - Linear Shaft
RS Stock No. 891-5515
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RJS5K0E
Brand :Ohmite
THB1,555.94
Each
Units
5kΩ ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 892-8221
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RKS750E
Brand :Ohmite
THB2,487.54
Each
Units
750Ω ±10% 100W 300 ° Panel Mount 6.35 mm - Solder Lug 79.38 (Dia.) x 44.45mm - - 44.45mm - Linear Shaft
RS Stock No. 892-8423
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RES5R0E
Brand :Ohmite
THB1,332.687
Each: (In a Pack of 10)
Units
±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 168-0125
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS22R0KB
Brand :Vishay
THB2,212.01
Each: (In a Pack of 25)
Units
22Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 893-5216
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RUS75RE
Brand :Ohmite
THB30,712.214
Each: (In a Pack of 5)
Units
75Ω ±10% 1kW 335 ° Panel Mount 9.53 mm - Solder Lug 304.8 (Dia.) x 76.2mm - - 76.2mm - Linear Shaft
RS Stock No. 788-7826
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS22R0KB
Brand :Vishay
THB2,276.72
Each
Units
22Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 891-5301
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RES10KE
Brand :Arcol Ohmite
THB1,267.57
Each
Units
10kΩ ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 168-0117
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS1000KB
Brand :Vishay
THB2,467.04
Each: (In a Pack of 25)
Units
100Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 788-7794
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS1000KB
Brand :Vishay
THB2,135.01
Each
Units
100Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 144-5530
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS5K0E
Brand :Arcol Ohmite
THB2,005.71
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. 827-6397
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.VRH320 33R K
Brand :Arcol
THB6,315.54
Each
Units
33Ω - - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 150mm 446mm - Slide
RS Stock No. 893-5213
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RUS2R5
Brand :Ohmite
THB35,096.144
Each: (In a Pack of 5)
Units
2.5Ω ±10% 1kW 335 ° Panel Mount 9.53 mm - Solder Lug 304.8 (Dia.) x 76.2mm - - 76.2mm - Linear Shaft
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