proximity reed switch

US$2.17 US$0.58

proximity reed switch contains a pair (or more) of magnetizable, flexible, metal reeds whose end portions are separated by a small gap when the switch is open. The reeds are hermetically sealed in opposite ends of a tubular glass envelope.

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INQUIRY

proximity reed switch is an electrical switch operated by an applied magnetic field. It consists of a pair of contacts on ferromagnetic metal reeds in a hermetically sealed glass envelope. The contacts may be normally open, closing when a magnetic field is present, or normally closed and opening when a magnetic field is applied. The switch may be actuated by a coil, making a reed relay,or by bringing a magnet near to the switch. Once the magnet is pulled away from the switch, the reed switch will go back to its original position.

An example of a reed switch’s application is to detect the opening of a door, when used as a proximity switch for a burglar alarm.

  1. Ability to switch up to 10,000 Volts
  2. Ability to switch currents up to 5 Amps
  3. Ability to switch or carry as low as 10 nanoVolts without signal  loss
  4. Ability to switch or carry  as low as 1 femtoAmp without signal loss
  5. Ability to switch or carry up to 7 GigaHz with minimal signal loss
  6. Isolation across the contacts up to 1015 Ω
  7. Contact resistance (on resistance) typical 50 milliOhms (mΩ).
  8. In its off state it requires no power or circuitry
  9. Ability to offer a latching feature
  10. Operate time in the 100 µs to 300 µs range
  11.  Ability to operate over extreme temperature ranges from –55 °C to 200 °C
  12. Ability to operate in all types of environments including air, water, vacuum, oil, fuels, and dust laden atmospheres
  13.  Ability to withstand shocks up to 200 Gs
  14. Ability to withstand vibration environments of 50 Hz to 2000 Hz    at up to 30 Gs
  15. Long life.  With no wearing parts, load switching under 5 Volts at 10 mA, will operate well into the billions of operation.
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