• 0471-2471601

    24x7 phone assistance

  • Fast Delivery

    All product safe

Member Login

Welcome back, friend. Login to get started

Member Register


Add a Review

Image Alternative text Image Alternative text Image Alternative text

SWI Reed Switch 12mm

28

Description

Reed switches come in two varieties called normally open (normally switched off) and normally closed (normally switched on)

Normally Open: In a reed switch, the two contacts (which look like metal reeds) are made from magnetic material and housed inside a thin glass envelope. One of the contacts (sometimes called "blades") is a magnetic north pole, while the other is a south pole. If you bring a magnet up to the switch, it affects the contacts in opposite ways, attracting one and repelling the other, so they spring together and a current flows through them. A reed switch like this is normally open (NO) (normally off), unless a magnet is positioned right next to it, when it switches on.

Normally Closed: The two contacts are normally snapped together. As you bring a magnet up to the switch, the lower contact is attracted to the magnet, the upper one is repelled, so the contacts split apart, opening the switch and breaking the circuit. Reed switches like this are called normally closed (NC) (normally switched on), and they switch off when you bring a magnet up to them.

Related Products

Image Alternative text
Arduino Uno R3 Board with cable
  • 420
  • 442
Image Alternative text
MICRO LITHIUM COIN 3V CELL CR2032 MOTHERBOARD BATTERY
  • 11
  • 12
Image Alternative text
LDR Sensor Module
  • 70
  • 70
Image Alternative text
Bridge Rectifier BR68(5 pcs)
  • 20
  • 20
Image Alternative text
IC CA3140 (Op Amp)
  • 27
  • 30
Image Alternative text
L293D Servo, Stepper & DC Motor Driver Shield
  • 177
  • 177