Rheostats | Linear & Wirewound | RS
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    Rheostats

    A rheostat is a variable resistor which is used to control current or vary resistance within an electrical circuit. They are able to vary the resistance in a circuit without interruption. Rheostats are very similar in construction to potentiometers, but they are designed to work with higher currents. Rheostats are used in motor speed controls, dimmer switches any any applications which require control of the flow of an electric current.

    How do rheostats work?

    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.

    Types of Rheostat

    • 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, or linear 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.

    What is the difference between a potentiometer and a rheostat?

    Both a rheostat and a potentiometer are a type of variable resistor. They feature a similar construction, however, a rheostat features 2 terminals and a potentometer features 3 terminals. A primary difference in functionality is that a rheostat is often implemented to change current, while pots can be used to change the voltage within a circuit.

    83 สินค้าที่แสดงสำหรับ Rheostats

    • RS Stock No. 168-0122
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RT025AS1501KB
    Each: (In a Pack of 25)
    THB8,360.441
    Vishay
    1.5kΩ
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS Stock No. 788-7813
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RT025AS1501KB
    Each
    THB9,793.44
    Vishay
    1.5kΩ
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS Stock No. 891-5610
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RNS10RE
    Each
    THB17,940.37
    Ohmite
    10Ω
    ±10%
    300W
    1
    Panel Mount
    9.53 mm
    -
    Solder Lug
    152.4 x 60.33mm
    1225 Vrms
    -
    -
    60.33mm
    5.48A
    -
    • RS Stock No. 167-9886
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RT055AS1002KB
    Each: (In a Pack of 25)
    THB27,184.043
    Vishay
    10kΩ
    ±10%
    55W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    60 x 64mm
    -
    -
    -
    64mm
    -
    +320°C
    • RS Stock No. 788-7810
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RT025AS1001KB
    Each
    THB7,903.85
    Vishay
    1kΩ
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS Stock No. 788-7794
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RT025AS1000KB
    Each
    THB10,823.32
    Vishay
    100Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS Stock No. 144-5537
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RKS10RE
    Each
    THB10,379.39
    Arcol Ohmite
    10Ω
    10%
    100W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    79.38 x 44.45mm
    1000 Vrms
    79.38mm
    -
    44.45mm
    3.16A
    -
    • RS Stock No. 168-0125
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RT025AS22R0KB
    Each: (In a Pack of 25)
    THB7,391.988
    Vishay
    22Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    23.5 V
    -
    -
    50mm
    -
    +320°C
    • RS Stock No. 788-7817
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RT025AS2200KB
    Each
    THB11,634.12
    Vishay
    220Ω
    ±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
    Each: (In a Pack of 25)
    THB8,603.333
    Vishay
    100Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS Stock No. 788-7801
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RT025AS15R0KB
    Each
    THB14,095.01
    Vishay
    15Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS Stock No. 891-5515
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RJS5K0E
    Each
    THB3,731.33
    Ohmite
    5kΩ
    ±10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    58.67 x 34.93mm
    750 Vrms
    -
    -
    34.93mm
    0.100A
    -
    • RS Stock No. 891-5509
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RJS500E
    Each
    THB4,389.66
    Arcol Ohmite
    500Ω
    ±10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    58.67 x 34.93mm
    750 Vrms
    -
    -
    34.93mm
    0.316A
    -
    • RS Stock No. 144-5531
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RJS12RE
    Each
    THB6,689.93
    Arcol Ohmite
    12Ω
    10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    58.67 x 34.93mm
    750 Vrms
    58.67mm
    -
    34.93mm
    2.04A
    -
    • RS Stock No. 892-2456
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RUS1R0E
    Each
    THB72,771.50
    Ohmite
    ±10%
    1kW
    1
    Panel Mount
    9.53 mm
    -
    Solder Lug
    304.8 x 76.2mm
    1600 Vrms
    -
    -
    76.2mm
    31.6A
    -
    • RS Stock No. 891-5540
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RKS1K0E
    Each
    THB7,746.04
    Ohmite
    1kΩ
    ±10%
    100W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    79.38 x 44.45mm
    1000 Vrms
    -
    -
    44.45mm
    0.316A
    -
    • RS Stock No. 788-7826
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RT025AS22R0KB
    Each
    THB8,658.11
    Vishay
    22Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    23.5 V
    -
    -
    50mm
    -
    +320°C
    • RS Stock No. 144-5527
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RHS1K5E
    Each
    THB3,950.09
    Arcol Ohmite
    1.5kΩ
    10%
    25W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    39.62 x 34.93mm
    500 Vrms
    39.62mm
    -
    34.93mm
    0.129A
    -
    • RS Stock No. 891-5597
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RLS25RE
    Each
    THB8,596.47
    Ohmite
    25Ω
    ±10%
    150W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    101.6 x 50.8mm
    1200 Vrms
    -
    -
    50.8mm
    2.45A
    -
    • RS Stock No. 788-7668
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. RT012AS1000KB
    Each
    THB15,640.27
    Vishay
    100Ω
    ±10%
    12W
    1
    Panel Mount
    3 mm
    6.5mm
    Solder Lug
    22.5 x 40mm
    -
    -
    -
    40mm
    -
    +320°C
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