Reed switches in Electronics and Science Kits
Reed Switches are used in many electronics and science kits for experimenting on various circuits and scientific phenomena. In motor kits for example, a reed switch is used to demonstrate how exactly a brush less motor works. Two magnets are mounted diametrically opposite each on the rotor shaft. A reed switch and an electromagnet with an opposite polarity than the rotor magnets are placed just near the two rotor magnets and connected in series to a power source. When one of the magnets is near the reed switch, the electromagnet is energized and repels the other magnet away which also cuts off the magnetic field to the reed switch. The momentum moves the magnet near the reed switch again and this works the motor. In science kits, reed switches are used to demonstrate the effects of magnetism and how far a magnetic field affects the surroundings.
Application Classification
Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.
Electromagnetic or Relay Type
 | Reed Relay in Food Processor Application When it is necessary to control a circuit load by using a separate low-power signal, or where Continue reading Nov 7, 2020 |
Recommended Products
The Reed Switches and Sensors used in such applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.
MM-1018 Micro Miniature Reed Switch
 | This 10.0 mm long, Form A type Micro Miniature reed switch is designed for moderate power, low load applications. The fast operate Continue reading Nov 8, 2022 |
SM-1322 Sub Miniature Reed Switch
 | This Form A type SM-1322 Sub Miniature Reed Switch is built with a 2.25 mm diameter glass with a higher wall thickness for better glass to Continue reading Nov 8, 2022 |
MO-1422 Miniature Off-Centre Contact Reed Switch
 | This MO-1422 Miniature Off-Centre Contact Form A type Reed Switch is designed for highly sensitive magnet applications when the Continue reading Dec 2, 2020 |