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

1060 Products showing for Capacitive, Magnetic and Piezo Switches

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In Stock
APEM Illuminated Piezo Switch, Momentary, SPST, IP68 Flying Lead, 200mA, 75 °C, -40 °C
  • RS stock no. 691-9638
  • Mfr. Part No. PBAR9AF2000A2A
Subtotal (1 unit)
R 1 390,98(exc. VAT)
R 1 390,98/unit
In Stock
APEM Illuminated Piezo Switch, Momentary, SPST, IP68 Flying Lead, 200mA, 75 °C, -40 °C
  • RS stock no. 691-9581
  • Mfr. Part No. PBAR9AF0000A0S
Subtotal (1 unit)
R 1 356,22(exc. VAT)
R 1 356,22/unit
In Stock
APEM Illuminated Piezo Switch, Momentary, SPST, IP68 Flying Lead, 200mA, 75 °C, -40 °C
  • RS stock no. 691-9590
  • Mfr. Part No. PBAR9AF0000A0G
Subtotal (1 unit)
R 1 382,02(exc. VAT)
R 1 382,02/unit
In Stock
APEM Illuminated Piezo Switch, Momentary, SPST, IP68 Flying Lead, 200mA, 75 °C, -40 °C
  • RS stock no. 691-9597
  • Mfr. Part No. PBAR9AF0000A0B
Subtotal (1 unit)
R 1 316,21(exc. VAT)
R 1 316,21/unit
In Stock
CAMDENBOSS Illuminated Piezo Switch, Momentary, SPST, IP68 Wire, 200mA, 70 °C, 20 °C Red
  • RS stock no. 817-9961
  • Mfr. Part No. CPS22IR-ALNA-24RG
Subtotal (1 unit)
R 518,71(exc. VAT)
R 518,71/unit
In Stock
Littelfuse PCB Reed Switch 500 mA 200 V
  • RS stock no. 905-8890
  • Mfr. Part No. MDRR-DT-10-15-F
Subtotal (5 units, in bags of 5)
R 349,54(exc. VAT)
R 69,908/unit
In Stock
APEM Illuminated Piezo Switch, Momentary, SPST, IP68 Solder, 200mA, 75 °C, -40 °C
  • RS stock no. 691-9373
  • Mfr. Part No. PBAR1AF0000A2A
Subtotal (1 unit)
R 1 364,70(exc. VAT)
R 1 364,70/unit
In Stock
Littelfuse PCB Surface Mount Reed Switch 250 mA 175 V
  • RS stock no. 905-8900
  • Mfr. Part No. MDSM-10R-20-25
Subtotal (5 units, in bags of 5)
R 108,96(exc. VAT)
R 21,792/unit
In Stock
RS PRO Piezo Switch, Momentary (NO), SPST, IP69 Flexible Wire, 200mA, 75 °C, -20 °C Natural
  • RS stock no. 259-1137
Subtotal (1 unit)
R 1 028,95(exc. VAT)
R 1 028,95/unit
In Stock
APEM Illuminated Piezo Switch, Latching, IP68 Flying Lead, 200mA, 75 °C, -40 °C
  • RS stock no. 691-9641
  • Mfr. Part No. PBAR91F2000W2A
Subtotal (1 unit)
R 2 522,96(exc. VAT)
R 2 522,96/unit
In Stock
RS PRO SPCO Surface Surface Mount Reed Switch 300 mA 30 V
  • RS stock no. 265-2266
Subtotal (1 unit)
R 100,95(exc. VAT)
R 100,95/unit
In Stock
RS PRO SPCO Surface Surface Mount Reed Switch 300 mA 30 V
  • RS stock no. 265-2273
Subtotal (1 unit)
R 100,06(exc. VAT)
R 100,06/unit
In Stock
RS PRO Piezo Switch, Momentary, IP68, 1A, 65 °C, -20 °C
  • RS stock no. 175-9533
Subtotal (1 unit, in packs of 1)
R 826,84(exc. VAT)
R 826,84/pack
In Stock
APEM Illuminated Piezo Switch, Momentary, SPST, IP68 Wire, 200mA, 75 °C, -40 °C
  • RS stock no. 691-9575
  • Mfr. Part No. PBARZAF0000C3A
Subtotal (1 unit)
R 1 556,16(exc. VAT)
R 1 556,16/unit
In Stock
APEM Illuminated Piezo Switch, Momentary, SPST, IP68 Wire, 200mA, 75 °C, -40 °C
  • RS stock no. 691-9578
  • Mfr. Part No. PBARYAF0000C0B
Subtotal (1 unit)
R 1 582,17(exc. VAT)
R 1 582,17/unit
In Stock
APEM Illuminated Piezo Switch, Momentary, SPST, IP68 Wire, 200mA, 75 °C, -40 °C
  • RS stock no. 691-9584
  • Mfr. Part No. PBARZAF0000F3A
Subtotal (1 unit)
R 1 589,88(exc. VAT)
R 1 589,88/unit
In Stock
RS PRO Illuminated Piezo Switch, Momentary (NO), SPST, IP69 Flexible Wire, 200mA, 75 °C, -20 °C Red
  • RS stock no. 259-1144
Subtotal (1 unit)
R 1 027,45(exc. VAT)
R 1 027,45/unit
In Stock
RS PRO Piezo Switch, Momentary, IP68, 1A, 65 °C, -20 °C
  • RS stock no. 175-8641
Subtotal (20 units, in trays of 20)
R 14 992,42(exc. VAT)
R 749,621/unit
In Stock
Bulgin Illuminated Piezo Switch, Momentary, IP68, IP69K Wire, 1A, 85 °C, -40 °C Grey
  • RS stock no. 124-1089
  • Mfr. Part No. MPZI022/F/GN/24
Subtotal (1 unit)
R 2 356,73(exc. VAT)
R 2 356,73/unit
In Stock
RS PRO SPCO Surface Surface Mount Reed Switch 300 mA 30 V
  • RS stock no. 265-2270
Subtotal (1 unit)
R 111,04(exc. VAT)
R 111,04/unit
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