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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

    1103 Products showing for Capacitive, Magnetic and Piezo Switches

    8 of 56
    KEMET SPST Reed Switch, 300mA 110V ac/dc
    • RS Stock No. 188-0820
    • Mfr. Part No. OHD3-90M
    Each
    Kr. 50,11
    DiodesZetex Hall Effect Switch 4mA 60mA Solder, Surface Mount, -40 → 150°C, 3 → 28 V
    • RS Stock No. 246-7393
    • Mfr. Part No. AH3582-SA-7
    Each (In a Pack of 25)
    Kr. 1,633
    Infineon Hall Effect Switch 6mA 20mA Solder Pin Digital, -40 → 85°C, 2.7 V → 18 V
    • RS Stock No. 244-2291P
    • Mfr. Part No. TLV4906KFTSA1
    Each (Supplied on a Reel)
    Kr. 5,40
    APEM Illuminated Piezo Switch, Momentary, SPST, IP68, IP69K, Flying Lead, 200 mA@ 24 V dc, -40 → +75°C
    • RS Stock No. 848-4673
    • Mfr. Part No. PBAR9AFB000A3A
    Each
    Kr. 1 060,35
    DiodesZetex Hall Effect Switch 3.3mA Surface Mount Latching, 2.7 → 27 V
    • RS Stock No. 222-2762
    • Mfr. Part No. AH3272Q-W-7
    Each (On a Reel of 3000)
    Kr. 3,624
    Assemtech SPST Reed Switch, 1A
    • RS Stock No. 909-2626
    • Mfr. Part No. RI-26B
    Each (In a Bag of 10)
    Kr. 16,245
    APEM Piezo Switch, Latching, IP68, Wire Lead, 200 mA @ 24 V dc, -40 → +75°C
    • RS Stock No. 691-9528
    • Mfr. Part No. PBAR21F2000
    Each
    Kr. 762,13
    RS PRO Capacitive Switch Momentary NO,Illuminated, Red, IP68 Brass
    • RS Stock No. 823-2779
    Each
    Kr. 538,02
    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)
    Kr. 6,333
    RS PRO Capacitive Switch Latching, Momentary,Illuminated, RGB, NPN, IP68
    • RS Stock No. 175-9517
    1 Pack of 1
    Kr. 648,08
    RS PRO Illuminated Piezo Switch, Momentary, IP68
    • RS Stock No. 175-9533
    1 Pack of 1
    Kr. 464,12
    Bulgin Capacitive Switch Latching NO,Illuminated, IP68 Stainless Steel
    • RS Stock No. 208-8335
    • Mfr. Part No. MC19LOSRG
    Each
    Kr. 508,74
    Assemtech SPST Reed Switch, 3A
    • RS Stock No. 909-2783
    • Mfr. Part No. GC3823 (30-40AT)
    Each (In a Bag of 10)
    Kr. 57,171
    Otto IP68S Through Hole Thumbwheel Switch Thumbwheel
    • RS Stock No. 737-3762
    • Mfr. Part No. HTWM-1A12A22
    Each
    Kr. 1 138,09
    RS PRO Piezo Switch, Momentary, Pulse, SPST, IP68, Flexible Wire, 40mA, -20 → +75°C Natural Aluminium
    • RS Stock No. 259-1157
    Each
    Kr. 455,88
    Sensata Cynergy3 SPST Reed Switch, 500mA 150V ac/dc
    • RS Stock No. 229-3692
    • Mfr. Part No. TRA294G/20-30
    Each
    Kr. 31,77
    DiodesZetex Hall Effect Switch 4mA 60mA Solder, Through Hole Open Drain, -40 → 150°C, 3 → 28 V
    • RS Stock No. 246-6561
    • Mfr. Part No. AH3762Q-P-B
    Each (On a Reel of 1000)
    Kr. 4,576
    WIKA IP65 SPST Through Hole Magnetic Reed Switch, 1A 230V
    • RS Stock No. 267-6369
    • Mfr. Part No. 48759232
    Each
    Kr. 412,38
    KEMET SPST Reed Switch, 300mA 110V ac/dc
    • RS Stock No. 188-1036
    • Mfr. Part No. OHD3-50B
    Each
    Kr. 126,50
    Littelfuse Miniature Reed Switch
    • RS Stock No. 905-8871
    • Mfr. Part No. Flex-14-10-15
    Each (In a Bag of 5)
    Kr. 13,288
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