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    Capacitive, Magnetic and Piezo Switches

    Capacitive, Magnetic, and Piezo Switches are types of electronic switches that operate based on different principles. Let's explore each of them:

    1. Capacitive Switches: Capacitive switches use the principle of capacitance to detect touch or proximity. They typically have a touch-sensitive surface that acts as one plate of a capacitor, while the other plate is usually a ground plane or a separate electrode. When a conductive object, such as a finger, comes close to or touches the touch-sensitive surface, it changes the capacitance, which is then detected by the switch's electronics. Capacitive switches are commonly used in touchscreens, touch-sensitive buttons, and proximity sensors.
    2. Magnetic Switches: Magnetic switches, also known as magnetic reed switches, use the presence or absence of a magnetic field to control the switch's operation. They consist of two metal reeds that are hermetically sealed within a glass tube. Each reed contains magnetically sensitive material. When a magnetic field is applied near the switch, the reeds are attracted to each other, and the switch closes, allowing current to flow. When the magnetic field is removed, the reeds separate, and the switch opens. Magnetic switches are often used in applications such as security systems, door and window sensors, and proximity sensors.
    3. Piezo Switches: Piezo switches utilize the piezoelectric effect to convert mechanical stress or pressure into an electrical signal. They consist of a piezoelectric material, such as certain crystals or ceramics, that generates an electric charge when subjected to mechanical deformation. When pressure or force is applied to the switch, it causes the piezoelectric material to deform, generating an electrical signal. This signal can be used to trigger a switching action. Piezo switches are commonly found in applications where a robust and reliable switch is required, such as industrial control panels, medical equipment, and automotive applications.

    Each type of switch has its own advantages and limitations. Capacitive switches offer touch-sensitive and non-mechanical operation but may be affected by moisture or dirt. Magnetic switches are highly reliable and can operate in harsh environments but require the presence of a magnetic field. Piezo switches are durable and can withstand high forces, but they require mechanical pressure to operate and are typically more expensive.

    Capacitive Switches
    Capacitive Switches
    Hall Effect Switches
    Hall Effect Switches
    Piezo Switches
    Piezo Switches
    Reed Switch Magnets
    Reed Switch Magnets
    Reed Switches
    Reed Switches
    Thumbwheel Switches
    Thumbwheel Switches

    1032 Products showing for Capacitive, Magnetic and Piezo Switches

    4 / 52
    Standex-Meder 1NO Screw Mount Magnetic Proximity Sensor, 500mA 200V
    • RS Stock No. 283-6297
    • Mfr. Part No. MK04-1A66C-500W
    Each
    MYR14.15
    RS PRO Capacitive Switch Latching NC,Illuminated, Green, Red, IP68 Brass
    • RS Stock No. 823-2738
    Each
    MYR154.15
    APEM Illuminated Piezo Switch, Latching, IP68, Flying Lead, 200 mA @ 24 V dc, -40 → +75°C
    • RS Stock No. 691-9641
    • Mfr. Part No. PBAR91F2000W2A
    Each
    MYR611.25
    RS PRO Capacitive Switch Latching, Momentary,Illuminated, RGB, NPN, IP68
    • RS Stock No. 175-8660
    Each (In a Tray of 20)
    MYR225.879
    APEM Piezo Switch, Momentary, Pulse, SPST, IP68, Flying Lead, 200 mA @ 24 V dc, -40 → +75°C
    • RS Stock No. 691-9644
    • Mfr. Part No. PBAR9AFB000
    Each
    MYR238.09
    Bulgin Capacitive Switch Momentary NC,Illuminated, Green, Red, IP68, IP69K Stainless Steel
    • RS Stock No. 208-8021
    • Mfr. Part No. MC25MCSRG
    Each
    MYR269.24
    WIKA IP54 SPST Through Hole Magnetic Reed Switch, 1A 230V
    • RS Stock No. 267-6376
    • Mfr. Part No. 52904640
    Each
    MYR261.52
    Capacitive switch, 19 mm, Normally Close
    • RS Stock No. 208-8327
    • Mfr. Part No. MC19LCSGR
    Each
    MYR217.39
    RS PRO SPCO Form A Through Hole Reed Switch, 500mA 200V
    • RS Stock No. 265-2242
    1 Box of 500
    MYR2,889.26
    Schurter Illuminated Piezo Switch, Momentary, SPST, IK02, IP67, IP69K, , 100 mA, -40 → +85°C
    • RS Stock No. 122-3009
    • Mfr. Part No. 1241.3669
    Each
    MYR339.14
    RS PRO Capacitive Switch Momentary NO,Illuminated, Green, IP68 Brass
    • RS Stock No. 823-2769P
    Each (Supplied in a Bag)
    MYR235.14
    KEMET SPST Through Hole Reed Switch, 300mA 110V ac/dc
    • RS Stock No. 188-0429
    • Mfr. Part No. OHD1-110M
    Each (In a Tray of 60)
    MYR28.571
    KEMET SPST Through Hole Reed Switch, 300mA 110V ac/dc
    • RS Stock No. 188-0447
    • Mfr. Part No. OHD1-105B
    Each (In a Tray of 60)
    MYR28.644
    Schurter Piezo Switch, IP67, Solder, 100 mA, -20 → +60°C Silver
    • RS Stock No. 456-1868
    • Mfr. Part No. 1241.2411.8
    Each
    MYR110.84
    Schurter Piezo Switch, IP67, Solder, 100 mA, -20 → +60°C Silver
    • RS Stock No. 173-9925
    • Mfr. Part No. 1241.2411.8
    Each (In a Box of 10)
    MYR110.84
    DiodesZetex Hall Effect Switch 4mA 60mA Solder, Through Hole Open Drain, -40 → 150°C, 3 → 28 V
    • RS Stock No. 246-7395
    • Mfr. Part No. AH3762Q-P-B
    Each (In a Pack of 10)
    MYR3.097
    Banner Capacitive Switch NO NO,Illuminated, Green, PNP, IP65
    • RS Stock No. 294-903
    • Mfr. Part No. K70APT2GXDQ
    Each
    MYR1,076.80
    Sensata Cynergy3 SPST Reed Switch, 10mA 30V ac/dc
    • RS Stock No. 118-7120
    • Mfr. Part No. VDA200H/5-15
    Each
    MYR65.57
    RS PRO Piezo Switch, Momentary, IP68
    • RS Stock No. 175-8641
    Each (In a Tray of 20)
    MYR176.212
    RS PRO Piezo Switch, Momentary, IP68
    • RS Stock No. 175-8653
    Each (In a Tray of 20)
    MYR134.837
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