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

Sort by
53 of 53
In Stock
EAO Capacitive switch Latching NO Illuminated, Green, Red, IO-Link, IP69K
  • RS stock no. 227-0845
  • Mfr. Part No. 84-ASKS-B13-049F
Subtotal (1 unit)
R 1 615,68(exc. VAT)
R 1 615,68/unit
In Stock
Bulgin Capacitive switch Latching NO Illuminated, Red, Green, On-Off, IP68 Stainless Steel
  • RS stock no. 208-8334
  • Mfr. Part No. MC19LOSGR
Subtotal (1 unit)
R 1 042,35(exc. VAT)
R 1 042,35/unit
Temporarily out of stock
Bulgin Capacitive switch Latching NO Illuminated, Red, Green, On-Off, IP68 Red Anodised
  • RS stock no. 208-8253
  • Mfr. Part No. MC22LORGR
Subtotal (1 unit)
R 1 004,84(exc. VAT)
R 1 004,84/unit
In Stock
Bulgin Capacitive switch Momentary NC Illuminated, Green, Red, On-Off, IP68 Stainless Steel
  • RS stock no. 208-8234
  • Mfr. Part No. MC19MCSGR
Subtotal (1 unit)
R 807,25(exc. VAT)
R 807,25/unit
Temporarily out of stock
Bulgin Capacitive switch Latching NC Illuminated, Green, Red, On-Off, IP69, IP68 Stainless Steel
  • RS stock no. 208-8325
  • Mfr. Part No. MC19LCRGR
Subtotal (1 unit)
R 879,79(exc. VAT)
R 879,79/unit
Temporarily out of stock
Bulgin Capacitive switch Latching NC Illuminated, Red, Green, On-Off, IP69, IP68 Stainless Steel
  • RS stock no. 208-8327
  • Mfr. Part No. MC19LCSGR
Subtotal (1 unit)
R 1 059,47(exc. VAT)
R 1 059,47/unit
Temporarily out of stock
Bulgin Capacitive switch Latching NC Illuminated, Red, Green, On-Off, IP68 Black Anodised
  • RS stock no. 208-8323
  • Mfr. Part No. MC19LCBGR
Subtotal (1 unit)
R 1 349,76(exc. VAT)
R 1 349,76/unit
In Stock
Bulgin Capacitive switch Momentary NC Illuminated, Green, Red, On-Off, IP68 Black Anodised
  • RS stock no. 208-8336
  • Mfr. Part No. MC19MCBGR
Subtotal (1 unit)
R 698,52(exc. VAT)
R 698,52/unit
In Stock
EAO Capacitive switch Latching NO Illuminated, Green, IO-Link, IP69K
  • RS stock no. 227-0838
  • Mfr. Part No. 84-ACKS-C17-04C4
Subtotal (1 unit)
R 3 120,61(exc. VAT)
R 3 120,61/unit
Currently unavailable
RS PRO Capacitive switch Momentary NC Illuminated, Red, Green, IP68 Brass
  • RS stock no. 823-2797P
Subtotal 1 unit (supplied in a tray)
R 901,05(exc. VAT)
R 901,05/unit
In Stock
ROHM Hall Effect Sensor 1.3 mA 25 mA Surface Mount Open Drain SFP, RJ45, 150 °C, -40 °C, 38V dc, 2.7 V dc
  • RS stock no. 264-482P
  • Mfr. Part No. BD54102G-CZTL
Subtotal 1 unit (supplied on a continuous strip)
R 120,92(exc. VAT)
R 120,92/unit
Currently unavailable
DiodesZetex Hall Effect Sensor 4 mA 60 mA Omnipolar Surface Mount Open Drain Maintained, 105 °C, -40 °C, 28V dc, 3 V dc
  • RS stock no. 246-7392P
  • Mfr. Part No. AH3564Q-SA-7
Subtotal 25 units (supplied on a continuous strip)
R 189,15(exc. VAT)
R 7,566/unit
In Stock
ifm electronic Guard Ring
  • RS stock no. 810-0237
  • Mfr. Part No. E80373
Subtotal (1 unit)
R 214,82(exc. VAT)
R 214,82/unit
Temporarily out of stock
Bulgin Capacitive switch Momentary NC Illuminated, Red, Green, On-Off, IP68 Stainless Steel
  • RS stock no. 204-8085
  • Mfr. Part No. MC19MCSRG
Subtotal (1 box of 60 units)
R 43 080,78(exc. VAT)
R 718,013/unit
Currently unavailable
RS PRO Capacitive switch Momentary Illuminated, Green
  • RS stock no. 174-8322
Subtotal (1 box of 100 units)
R 114 075,30(exc. VAT)
R 1 140,753/unit
Temporarily out of stock
APEM Capacitive switch Momentary Latching, Momentary Illuminated, Red, Green, NPN, IP68, IP69K
  • RS stock no. 205-8745
  • Mfr. Part No. CPB3110000DGSS
Subtotal (1 unit)
R 1 699,48(exc. VAT)
R 1 699,48/unit
Temporarily out of stock
Infineon Hall Effect Sensor 1.6 mA 25 mA Unipolar switch Solder Pin Open Drain Non-Latching, 107 °C, -40 °C, 32V, 3 V
  • RS stock no. 244-2288
  • Mfr. Part No. TLE49681KXTSA1
Subtotal (1 reel of 3000 units)
R 12 408,00(exc. VAT)
R 4,136/unit
Currently unavailable
DiodesZetex Hall Effect Sensor 720 μA 1 mA Omnipolar Surface Mount Open Drain, 85 °C, -40 °C, 3.6V dc, 1.6 V dc
  • RS stock no. 246-7386P
  • Mfr. Part No. AH1925-HK4-7
Subtotal 25 units (supplied on a continuous strip)
R 93,35(exc. VAT)
R 3,734/unit
In Stock
Banner Capacitive switch NO Momentary Illuminated, RGB, NPN/PNP, IP67, IP66, IP69K Polycarbonate
  • RS stock no. 294-100
  • Mfr. Part No. S22AMTSGRCQ
Subtotal (1 unit)
R 1 892,83(exc. VAT)
R 1 892,83/unit
In Stock
DiodesZetex Hall Effect Sensor 3.3 mA Surface Mount Linear Latching, 150 °C, -40 °C, 27V, 2.7 V
  • RS stock no. 222-2764
  • Mfr. Part No. AH3272Q-W-7
Subtotal (1 pack of 25 units)
R 165,80(exc. VAT)
R 6,632/unit
1
51
52
53
Results per page

Related links