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    47 Products
    About Electrical Switches
    industrial info icon

    Choose a switch with the right trigger type, number of inputs, and control functions to power your equipment.

    Miniature Panel-Mount Push-Button Switches

    Image of Product. 4 mm. Front orientation. For 4 mm Diameter Panel Cutouts. Miniature Panel-Mount Push-Button Switches.
    Image of Product. 6 mm with 2 Terminals. Front orientation. For 6 mm Diameter Panel Cutouts. Miniature Panel-Mount Push-Button Switches, 2 Terminals.
    Image of Product. 6 mm with 3 Terminals. Front orientation. For 6 mm Diameter Panel Cutouts. Miniature Panel-Mount Push-Button Switches, 3 Terminals.
    Image of Product. 6 mm with 6 Terminals. Front orientation. For 6 mm Diameter Panel Cutouts. Miniature Panel-Mount Push-Button Switches, 6 Terminals.

    4 mm

    6 mm

    with 2

    Terminals

    6 mm

    with 3

    Terminals

    6 mm

    with 6

    Terminals

    Sized for 4 mm or 6 mm panel cutouts, these switches are often used with circuit boards to control electronics. They actuate with a quick push. Choose switches based on their actuator color for an easy way to tell them apart.
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Action
    No. of
    Terminals
    Switch
    Designation
    Switching Current
    @ Voltage
    Max. Voltage
    Dia.
    Dp. Behind
    Panel
    Choose an Actuator
    Color
    Each
    Metal Actuator Base with Solder Connection
     
    For 4 mm ( 5/32") Diameter Panel Cutouts
    11 Off
    		Momentary
    		2SPST-NO
    		0.5 amp @ 120V AC/28V DC120V AC
    28V DC    		0.11"0.53"Black7397K1100000
    11 On
    		Momentary
    		2SPST-NC
    		0.25 amp @ 120V AC/28V DC120V AC
    28V DC    		0.11"0.57"Black7397K1300000
     
    For 6 mm ( 1/4") Diameter Panel Cutouts
    11 Off
    		Momentary
    		2SPST-NO
    		1 amp @ 120V AC/28V DC120V AC
    28V DC    		0.16"0.67"Black, Red7397K11100000
    11 Off
    		Momentary
    		2SPST-NO
    		3 amp @ 120V AC/28V DC120V AC
    28V DC    		0.16"0.78"Black, Red7397K11200000
    11 Off or 1 On
    		Momentary
    		3SPDT
    		6 amp @ 120V AC/28V DC120V AC
    28V DC    		0.38"0.76"Black, Red7400K11100000
    11 On
    		Momentary
    		2SPST-NC
    		1 amp @ 120V AC/28V DC120V AC
    28V DC    		0.16"0.78"Black7397K230000
    22 Off or 2 On
    		Momentary
    		6DPDT
    		1 amp @ 120V AC/28V DC120V AC
    28V DC    		0.12"0.72"White7400K7200000
     
    Metal Actuator Base with Solder Connection and Push Reset
     
    For 6 mm ( 1/4") Diameter Panel Cutouts
    11 Off or 1 On
    		Maintained
    		3SPDT
    		6 amp @ 120V AC/28V DC120V AC
    28V DC    		0.38"0.76"Black, Red7400K1120000
    22 Off or 2 On
    		Maintained
    		6DPDT
    		6 amp @ 120V AC/28V DC120V AC
    28V DC    		0.38"0.76"Black7400K10300000
     

    Circuit Board Push-Button Switches

    Image of Product. Front orientation. Push-Button Switches. Circuit Board Push-Button Switches, Ungrounded, Flush Push Button.
    Image of Product. Front orientation. Push-Button Switches. Circuit Board Push-Button Switches, Ungrounded, Projecting Push Button.
    Image of Product. Front orientation. Push-Button Switches. Circuit Board Push-Button Switches, Grounded, Flush Push Button.

    Ungrounded,

    Flush Push

    Button

    Ungrounded,

    Projecting

    Push Button

    Grounded,

    Flush Push

    Button

    Send a signal from your circuit board with the push of a button. These switches are small and have pins for through-hole soldering, helping you eliminate wiring and save space on your circuit board. Also known as tactile switches, they’re the same ones you press when typing on a keyboard. You’ll also find them in control panels and interfaces.
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Action
    No. of
    Terminals
    Switch
    Designation
    Actuator
    Color
    Switching Current
    @ Voltage
    Max. Voltage,
    V DC
    Initial Contact
    Resistance, mohm
    Ht.
    Wd.
    Dp.
    Each
    Ungrounded Plastic Actuator with Solder Connection—For 3.5 mm (0.16") Diameter Panel Cutouts
     
    Flush Push Button
    11 Off
    		Momentary
    		4SPST-NO
    		Ivory50 mA @ 24V DC241000.17"0.24"0.24"1821N1100000
    11 Off
    		Momentary
    		4SPST-NO
    		Orange50 mA @ 24V DC241000.17"0.24"0.24"1821N130000
    11 Off
    		Momentary
    		4SPST-NO
    		Red50 mA @ 24V DC241000.17"0.24"0.24"1821N140000
     
    Projecting Push Button
    11 Off
    		Momentary
    		4SPST-NO
    		Yellow50 mA @ 24V DC241000.29"0.24"0.24"1821N520000
     
    Grounded Plastic Actuator with Solder Connection—For 3.5 mm (0.16") Diameter Panel Cutouts
     
    Flush Push Button
    11 Off
    		Momentary
    		5SPST-NO
    		Yellow50 mA @ 24V DC241000.17"0.24"0.24"1821N220000
     
    Covers for Projecting Switches
    Image of Product. Round. Front orientation. Push-Button Switch Covers. Circuit Board Push-Button Switches.

    Round

    Covers fit over projecting button switches.
    Black
    Ivory
    Shape
    Dia.
    Ht.
    Material
    Each
    Each
    Round0.24"0.22"Plastic1821N956000001821N95500000

    DIP Switches

    Image of Product. Bottom orientation. DIP Switches.
    Configure instructions for electronic devices by sliding actuators to open or close each circuit. The actuators also make it easy to see your settings without turning on equipment. Since the contacts are gold plated, they have better conductivity and resist heat better than nickel-plated contacts. Push the contacts through holes in your circuit board, then solder them in place.
    No. of Circuits
    Controlled
    Switch Starting
    Position
    No. of Terminals
    per Slide
    Switch
    Designation
    Switching Current
    @ Voltage
    Max. Voltage,
    V DC
    Actuator
    Material
    Housing
    Material
    Contact Material
    Ht.
    Wd.
    Dp.
    For Hole
    Ctr.-to-Ctr.
    Pkg.
    Qty.
    Pkg.
    11 Off
    		2SPST-NO
    		25 mA @ 25V DC50White PlasticRed PlasticGold-Plated Bronze0.3"0.18"0.38"0.1"201801N101000000
    21 Off
    		2SPST-NO
    		25 mA @ 25V DC50White PlasticRed PlasticGold-Plated Bronze0.3"0.28"0.38"0.1"201801N10200000
    31 Off
    		2SPST-NO
    		25 mA @ 25V DC50White PlasticRed PlasticGold-Plated Bronze0.3"0.38"0.38"0.1"201801N10300000
    41 Off
    		2SPST-NO
    		25 mA @ 25V DC50White PlasticRed PlasticGold-Plated Bronze0.3"0.48"0.38"0.1"201801N10400000
    51 Off
    		2SPST-NO
    		25 mA @ 25V DC50White PlasticRed PlasticGold-Plated Bronze0.3"0.58"0.38"0.1"201801N10500000
    61 Off
    		2SPST-NO
    		25 mA @ 25V DC50White PlasticRed PlasticGold-Plated Bronze0.3"0.68"0.38"0.1"201801N10600000
    81 Off
    		2SPST-NO
    		25 mA @ 25V DC50White PlasticRed PlasticGold-Plated Bronze0.3"0.88"0.38"0.1"201801N10700000

    Circuit Board Magnetically Actuated Switches

    Mounted to your circuit board, these switches trigger when magnetic components get near, and reset as they move away. They’re often used to turn on electronics, such as starting up a laptop when you open it. To install, push the contacts through holes in a circuit board, then solder them in place.
    Glass Housing
    Image of Product. Front orientation. Magnetic Switches. Circuit Board Magnetically Actuated Switches, Glass Housing.
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Designation
    Switching Current
    @ Voltage
    Max. Voltage,
    V DC
    Wire
    Dia.
    OD
    Lg.
    Certification
    Pkg.
    Qty.
    Pkg.
    11 Off
    		SPST-NO
    		0.5 amp @ 200V DC2500.02"0.1"0.6"UL Recognized Component, C-UL Recognized Component
    		208307N12000000
    Plastic Housing
    Image of Product. Front orientation. Magnetic Switches. Circuit Board Magnetically Actuated Switches, Plastic Housing.
    Switches with a plastic housing withstand impact better than switches with a glass housing. The plastic also forms an airtight seal to block out contaminants. Use them in dusty or dirty environments where an optical switch might fail.
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Designation
    Switching Current
    @ Voltage
    Max. Voltage,
    V DC
    Wire
    Dia.
    Lg.
    Wd.
    Ht.
    Hazardous Location
    Protection Type
    Hazardous Location Rating
    Certification
    Includes
    Pkg.
    Qty.
    Pkg.
    11 Off
    		SPST-NO
    		0.5 amp @ 200V DC2500.02"0.6"0.1"0.1"Hermetically SealedNEC Class I Division 2 Groups A, B, C, D
    		UL Recognized Component, C-UL Recognized Component
    		Magnet208307N11000000

    Circuit Board DC Magnetic-Object Proximity Sensors

    Image of Product. Front orientation. Proximity Sensors. Circuit Board DC Magnetic-Object Proximity Sensors.
    Send signals in response to changing magnetic fields to trigger processes or monitor position, speed, and current. These sensors communicate with devices such as programmable logic controllers (PLCs) and microcontrollers. They’re also known as hall effect sensors. To install, push their contacts through holes in a circuit board, then solder them in place.
    Maintained Switch—Maintained sensors change their output signal based on the polarity of a magnetic field. They’re often used to monitor movement, such as tracking the speed and position of a shaft. These sensors output a high-voltage signal when they detect a north pole, and a low-voltage signal for a south pole. When the magnetic field is removed, they maintain the same output signal.
    Momentary Switch—Momentary sensors change their output signal based on whether a magnetic field is present. They’re often used to trigger a process in response to changing magnetic fields, such as turning on a light when a door opens. When they detect a north or south pole, they output a low-voltage signal. When they don’t detect a magnetic field at all, they output a high-voltage signal.
    Switch
    Action
    Switch Starting
    Position
    Magnetic Flux Density
    Set Point, G
    Approx. Difference Between Set
    Point and Reset Point, G
    Switching
    Freq.
    Switching Current
    @ Voltage
    Max. Voltage,
    V DC
    Wire
    Dia.
    Lg.,
    mm
    Wd.,
    mm
    Ht.,
    mm
    Temp. Range,
    ° F
    Pkg.
    Qty.
    Pkg.
    Plastic Housing
     
    Circuit-Board Mount
    Maintained
    		1 Off or 1 On
    		90—10 kHz5 mA @ 24V DC240.015"342-40 to 185108037N12000000
    Momentary
    		1 On
    		39540Not Rated0.008 mA @ 3V DC5.50.015"342-40 to 255108037N1100000
     

    Transistors

    Amplify or control electric signals. Transistors are often used to boost weak electrical signals or as switches to rapidly control data transmission and computing signals. The transistor's leads are ordered from left to right with the flat side facing you. The incoming current you intend to control is sent to the emitter (E) for NPN transistors or the collector (C) for PNP transistors. The base (B) controls how much current flows through the transistor. Then current is output to your application through the collector pin for NPN transistors or the emitter pin for PNP transistors.
    When you send current to the base, you can control the current flow between the collector and emitter leads.
    Sold Individually
    Image of Product. Front orientation. Transistors. Sold Individually.
    NPN Signal Output—NPN transistors use positive current and voltage at the base to control current flowing from the collector to the emitter.
    PNP Signal Output—PNP transistors use negative current and voltage at the base to control current flowing from the emitter to the collector.
    Maximum Current Gain—Maximum current gain is the highest multiplication factor the transistor can boost the current.
    Max. Voltage, V DC
    Max. Current,
    amp
    Collector-Emitter
    Collector-Base
    Emitter-Base
    Max. Current
    Gain
    Power Dissipation,
    W
    Lg.
    Wd.
    Wire
    Dia.
    Electronic Component
    Trade Size
    Electronic Component
    Trade No.
    Transistor Type
    Temp. Range,
    ° F
    Pkg.
    Qty.
    Pkg.
    NPN Transistors with EBC Leads
    0.1455051,0000.453/16"3/16"0.022"TO-92S9014Bipolar Junction-65 to 300256398N2100000
    0.2406064000.6253/16"3/16"0.022"TO-922N3904Bipolar Junction-65 to 300256398N120000
    0.230531052500.6253/16"3/16"0.022"TO-92MPSA42Bipolar Junction-65 to 300256398N160000
    0.5254054000.6253/16"3/16"0.022"TO-92S8050Bipolar Junction-65 to 300256398N140000
    0.6407563000.6253/16"3/16"0.022"TO-922N2222ABipolar Junction-65 to 300256398N110000
    0.616018063000.6253/16"3/16"0.022"TO-922N5551Bipolar Junction-65 to 300256398N130000
     
    NPN Transistors with ECB Leads
    0.15506057000.43/16"3/16"0.022"TO-922SC1815Bipolar Junction-65 to 300256398N150000
    0.15506057000.43/16"3/16"0.022"TO-922SC945Bipolar Junction-65 to 300256398N170000
     
    NPN Transistors with CBE Leads
    0.1455068000.6253/16"3/16"0.022"TO-92BC547BBipolar Junction-65 to 300256398N190000
    0.8455056300.6253/16"3/16"0.022"TO-92BC337Bipolar Junction-65 to 300256398N180000
     
    PNP Transistors with EBC Leads
    -0.6-150-160-53000.6253/16"3/16"0.022"TO-922N5401Bipolar Junction-65 to 300256398N240000
    -0.6-60-60-53000.6253/16"3/16"0.022"TO-922N2907ABipolar Junction-65 to 300256398N220000
    -0.5-25-40-54000.6253/16"3/16"0.022"TO-92S8550Bipolar Junction-65 to 300256398N250000
    -0.2-305-310-52500.6253/16"3/16"0.022"TO-92MPSA92Bipolar Junction-65 to 300256398N270000
    -0.2-40-40-54000.6253/16"3/16"0.022"TO-922N3906Bipolar Junction-65 to 300256398N230000
     
    PNP Transistors with ECB Leads
    -0.15-50-50-57000.43/16"3/16"0.022"TO-922SA1015Bipolar Junction-65 to 300256398N260000
    -0.1-50-60-56000.253/16"3/16"0.022"TO-92A733Bipolar Junction-65 to 300256398N280000
     
    PNP Transistors with CBE Leads
    -0.8-45-50-56300.6253/16"3/16"0.022"TO-92BC327Bipolar Junction-65 to 300256398N290000
    -0.1-45-50-58000.6253/16"3/16"0.022"TO-92BC557BBipolar Junction-65 to 300256398N310000
     
    Sold as Sets
    Image of Product. Front orientation. Transistors. Sold as Sets.
    NPN Signal Output—NPN transistors use positive current and voltage at the base to control current flowing from the collector to the emitter.
    PNP Signal Output—PNP transistors use negative current and voltage at the base to control current flowing from the emitter to the collector.
    No. of
    Pieces
    Includes
    Lg.
    Wd.
    Wire
    Dia.
    Electronic Component
    Trade Size
    Transistor Type
    Temp. Range,
    ° F
    Each
    NPN Transistors and PNP Transistors with EBC, ECB, and CBE Leads
    190S9014—NPN Transistor with EBC Leads (10 Pieces)
    2N3904—NPN Transistor with EBC Leads (10 Pieces)
    MPSA42—NPN Transistor with EBC Leads (10 Pieces)
    S8050—NPN Transistor with EBC Leads (10 Pieces)
    2N2222A—NPN Transistor with EBC Leads (10 Pieces)
    2N5551—NPN Transistor with EBC Leads (10 Pieces)
    2SC1815—NPN Transistor with ECB Leads (10 Pieces)
    2SC945—NPN Transistor with ECB Leads (10 Pieces)
    BC547B—NPN Transistor with CBE Leads (10 Pieces)
    BC337B—NPN Transistor with CBE Leads (10 Pieces)
    2N5401—PNP Transistor with EBC Leads (10 Pieces)
    2N2907A—PNP Transistor with EBC Leads (10 Pieces)
    S8550—PNP Transistor with EBC Leads (10 Pieces)
    MPSA92—PNP Transistor with EBC Leads (10 Pieces)
    2N3906—PNP Transistor with EBC Leads (10 Pieces)
    2SA1015—PNP Transistor with ECB Leads (10 Pieces)
    A733—PNP Transistor with ECB Leads (10 Pieces)
    BC327B—PNP Transistor with CBE Leads (10 Pieces)
    BC557B—PNP Transistor with CBE Leads (10 Pieces)    		3/16"3/16"0.022"TO-92Bipolar Junction-65 to 3006398N32000000
     
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