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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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. 892-2416
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RRS125E
Brand :Ohmite
THB14,588.50
Each
Units
125Ω ±10% 500W 325 ° Panel Mount 9.53 mm - Solder Lug 203.2 (Dia.) x 53.98mm - - 53.98mm - Linear Shaft
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. 167-9894
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT100AS22R0KB
Brand :Vishay
THB7,823.218
Each: (In a Pack of 25)
Units
22Ω ±10% 100W 1 Panel Mount 6 mm 10.5mm Solder Lug 85 (Dia.) x 81mm - - 81mm +320°C -
RS Stock No. 891-5348
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RES350E
Brand :Arcol Ohmite
THB1,615.65
Each: (In a Pack of 5)
Units
350Ω ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 892-5792
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RPS50RE
Brand :Ohmite
THB7,378.74
Each
Units
50Ω ±10% 225W 310 ° Panel Mount 9.53 mm - Solder Lug 127 (Dia.) x 53.98mm - - 53.98mm - Linear Shaft
RS Stock No. 168-0120
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS1500KB
Brand :Vishay
THB2,705.51
Each: (In a Pack of 25)
Units
150Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 891-5610
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RNS10RE
Brand :Ohmite
THB8,069.29
Each
Units
10Ω ±10% 300W 320 ° Panel Mount 9.53 mm - Solder Lug 152.4 (Dia.) x 60.33mm - - 60.33mm - Linear Shaft
RS Stock No. 891-5354
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RES500E
Brand :Arcol Ohmite
THB1,744.03
Each
Units
500Ω ±10% 12.5W 300 ° Panel Mount 3.18 mm - Solder Lug 22.23 (Dia.) x 17.46mm - - 17.46mm - Linear Shaft
RS Stock No. 788-7668
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT012AS1000KB
Brand :Vishay
THB4,640.12
Each
Units
100Ω ±10% 12W 1 Panel Mount 3 mm 6.5mm Solder Lug 22.5 (Dia.) x 40mm - - 40mm +320°C -
RS Stock No. 892-2447
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RRS50RE
Brand :Ohmite
THB14,547.04
Each
Units
50Ω ±10% 500W 325 ° Panel Mount 9.53 mm - Solder Lug 203.2 (Dia.) x 53.98mm - - 53.98mm - Linear Shaft
RS Stock No. 168-0127
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS4700KB
Brand :Vishay
THB2,274.345
Each: (In a Pack of 25)
Units
470Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
RS Stock No. 892-8344
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS125E
Brand :Ohmite
THB1,973.83
Each
Units
125Ω ±10% 25W 300 ° Panel Mount 6.35 mm - Solder Lug 39.62 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 827-6407
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.VRH320 1K K
Brand :Arcol
THB6,106.30
Each
Units
1kΩ ±10% - - Surface Mount - - Solder Lug 446 x 93 x 150mm 93mm 150mm 446mm - Slide
RS Stock No. 893-3419
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RNS400E
Brand :Ohmite
THB6,880.084
Each: (In a Pack of 5)
Units
400Ω ±10% 300W 320 ° Panel Mount 9.53 mm - Solder Lug 152.4 (Dia.) x 60.33mm - - 60.33mm - Linear Shaft
RS Stock No. 891-5294
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RCS100E
Brand :Arcol Ohmite
THB5,204.01
Each: (In a Pack of 5)
Units
100Ω ±10% 7.5W 300 ° Panel Mount 3.18 mm - Solder Lug 13.08 (Dia.) x 15.88mm - - 15.88mm - Linear Shaft
RS Stock No. 788-7674
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT100AS1002KB
Brand :Vishay
THB9,517.16
Each
Units
10kΩ ±10% 100W 1 Panel Mount 6 mm 10.5mm Solder Lug 85 (Dia.) x 81mm - - 81mm +320°C -
RS Stock No. 144-5540
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RLS15RE
Brand :Arcol Ohmite
THB4,335.61
Each
Units
15Ω 10% 150W 300 ° Panel Mount 6.35 mm - Solder 101.6 (Dia.) x 50.8mm 101.6 (Dia.)mm - 50.8mm - Linear Shaft
RS Stock No. 891-5499
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RJS300E
Brand :Ohmite
THB2,394.64
Each
Units
300Ω ±10% 50W 300 ° Panel Mount 6.35 mm - Solder Lug 58.67 (Dia.) x 34.93mm - - 34.93mm - Linear Shaft
RS Stock No. 144-5525
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RHS10RE
Brand :Arcol Ohmite
THB2,110.55
Each
Units
10Ω 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. 788-7807
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RT025AS1500KB
Brand :Vishay
THB3,178.59
Each
Units
150Ω ±10% 25W 1 Panel Mount 6 mm 10.5mm Solder Lug 38 (Dia.) x 50mm - - 50mm +320°C -
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