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.

1029 產品顯示為 Capacitive, Magnetic and Piezo Switches

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有庫存
  • RS庫存編號 777-7552
  • 製造零件編號 1241.3258
小計(1 件)
HK$991.30
HK$991.30/件
暫時無法供應
  • RS庫存編號 259-1158
小計(1 件)
HK$340.46
HK$340.46/件
有庫存
  • RS庫存編號 241-2363
  • 製造零件編號 X4-P3C47-2S1
小計(1 盒,共 1 件)
HK$1,970.10
HK$1,970.10/盒
暫時缺貨
  • RS庫存編號 204-7869
  • 製造零件編號 MC25LCRGR
小計(1 盒,共 60 件)
HK$29,405.70
HK$490.095/件
有庫存
  • RS庫存編號 244-2289P
  • 製造零件編號 TLE49681KXTSA1
小計 5 件 (按連續帶提供)
HK$21.00
HK$4.20/件
有庫存
  • RS庫存編號 765-1172
  • 製造零件編號 IHLR015XF2
小計(1 件)
HK$1,024.20
HK$1,024.20/件
暫時缺貨
  • RS庫存編號 765-1175
  • 製造零件編號 IHLR015XF6
小計(1 件)
HK$873.40
HK$873.40/件
有庫存
  • RS庫存編號 613-8202
  • 製造零件編號 MMPSM
小計(1 件)
HK$27.50
HK$27.50/件
有庫存
  • RS庫存編號 693-2376
  • 製造零件編號 HTW-02-BLK
小計(1 件)
HK$917.00
HK$917.00/件
製造商存貨
  • RS庫存編號 267-6373
  • 製造零件編號 48772451
小計(1 件)
HK$1,785.25
HK$1,785.25/件
有庫存
  • RS庫存編號 244-2289
  • 製造零件編號 TLE49681KXTSA1
小計(1 包,共 5 件)
HK$21.00
HK$4.20/件
有庫存
  • RS庫存編號 118-7035
  • 製造零件編號 DRA200G/60-80
小計(1 件)
HK$77.50
HK$77.50/件
有庫存
  • RS庫存編號 765-1181
  • 製造零件編號 IHSR36F2
小計(1 件)
HK$656.10
HK$656.10/件
暫時缺貨
  • RS庫存編號 242-0764
  • 製造零件編號 TLE49646MXTMA1
小計(1 卷,共 10000 件)
HK$22,710.00
HK$2.271/件
有限的庫存
  • RS庫存編號 118-7108
  • 製造零件編號 RSH01
小計(1 件)
HK$13.00
HK$13.00/件
有庫存
  • RS庫存編號 905-8904
  • 製造零件編號 MDSM-4R-12-18
小計(1 袋,共 5 件)
HK$52.50
HK$10.50/件
暫時缺貨
  • RS庫存編號 737-3768
  • 製造零件編號 HTWF-1H11A22A
小計(1 件)
HK$1,309.30
HK$1,309.30/件
有庫存
  • RS庫存編號 909-2856
  • 製造零件編號 MKIT-P1456
小計(1 套)
HK$94.40
HK$94.40/套
有庫存
  • RS庫存編號 362-2467
  • 製造零件編號 M1219-5
小計(1 件)
HK$20.70
HK$20.70/件
有庫存
  • RS庫存編號 909-2657
  • 製造零件編號 RI-60
小計(1 袋,共 10 件)
HK$90.90
HK$9.09/件
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