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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

    1051 Products showing for Capacitive, Magnetic and Piezo Switches

    2 of 53
    Banner Capacitive Switch Manual,Illuminated, Green, Red, Yellow, PNP, IP65 Polycarbonate
    • RS Stock No. 294-902
    • Mfr. Part No. K70APT2GRYF2Q
    Each
    HK$1,843.78
    Banner Capacitive Switch Momentary Manual,Illuminated, Green, Red, PNP, IP69K Polycarbonate
    • RS Stock No. 295-189
    • Mfr. Part No. K50APTGRCQ
    Each
    HK$1,357.25
    Assemtech SPST Reed Switch
    • RS Stock No. 909-2639
    • Mfr. Part No. RI-27 Kit
    1 Kit
    HK$42.06
    RS PRO SPCO Form A Surface Mount Surface Mount Reed Switch, 300mA 30V
    • RS Stock No. 265-2270
    Each
    HK$46.90
    Schurter Capacitive Switch Momentary NO,Illuminated, RGB, OptoMOS Relay, IP67
    • RS Stock No. 174-5457
    • Mfr. Part No. 3-101-399
    Each
    HK$305.00
    Banner Capacitive Switch Momentary NC, NO,Illuminated, PNP, IP67
    • RS Stock No. 285-971
    • Mfr. Part No. OTBVP6LQDH
    Each
    HK$1,353.71
    Banner Capacitive Switch Momentary Manual,Illuminated, Green, Red, Yellow, PNP, IP69K Polycarbonate
    • RS Stock No. 295-184
    • Mfr. Part No. K50APT2GRYC3Q
    Each
    HK$1,536.52
    SMC Direct Mount Reed Switch, 20mA
    • RS Stock No. 280-9299
    • Mfr. Part No. D-A96L
    Each
    HK$245.40
    RS PRO SPCO Form A Through Hole Reed Switch, 1A 250V
    • RS Stock No. 265-2284
    1 Box of 500
    HK$6,846.80
    Bulgin Capacitive Switch Momentary NO,Illuminated, Green, Red, IP68, IP69K Black Anodised
    • RS Stock No. 204-8084
    • Mfr. Part No. MC19MOBGR
    Each (In a Box of 60)
    HK$283.62
    Banner Capacitive Switch Momentary NO,Illuminated, Green, Red, Yellow, PNP, IP67, IP69K Polycarbonate
    • RS Stock No. 295-178
    • Mfr. Part No. K50APT2FGRBF2QP
    Each
    HK$1,638.94
    Banner Capacitive Switch NO,Illuminated, RGB, NPN/PNP, IP66, IP67, IP69K Polycarbonate
    • RS Stock No. 294-108
    • Mfr. Part No. S22AMTSGRY3T
    Each
    HK$699.89
    Banner Capacitive Switch Manual,Illuminated, Green, Red, Yellow, IP65 Polycarbonate
    • RS Stock No. 294-904
    • Mfr. Part No. K70DXN9T2GRYQ
    Each
    HK$2,979.14
    Banner Capacitive Switch Momentary NO,Illuminated, Green, PNP, IP67, IP69K Polycarbonate
    • RS Stock No. 294-273
    • Mfr. Part No. K50APFF100GXD
    Each
    HK$1,357.25
    Banner Capacitive Switch Momentary Manual,Illuminated, Green, PNP, IP67, IP69K Polycarbonate
    • RS Stock No. 295-200
    • Mfr. Part No. K50APTXGHQ
    Each
    HK$1,357.25
    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)
    HK$5.02
    RS PRO 1C Through Hole Reed Switch, 500mA 175V
    • RS Stock No. 265-2253
    1 Box of 500
    HK$20,706.40
    Schurter Piezo Switch, Momentary, SPST, IP67, IP69K, Tab, 100 mA, -40 → +85°C Natural
    • RS Stock No. 738-5500
    • Mfr. Part No. 1241.5003
    Each
    HK$182.90
    RS PRO SPCO Form A Through Hole Reed Switch, 500mA 200V
    • RS Stock No. 265-2229
    1 Box of 500
    HK$3,660.80
    Banner Capacitive Switch Momentary Manual,Illuminated, Green, Red, Yellow, PNP, IP69K Polycarbonate
    • RS Stock No. 295-196
    • Mfr. Part No. K50APTGYRF2Q
    Each
    HK$1,604.83
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