Reed Switch

Dry reed switchesMercury reed switchesHigh voltage reed switchesHigh power switch modulesA reed switch consists of two ferromagnetic and specially shaped contact blades (reeds) positioned in a hermeticallySealed glass tube with a gap between them and in a protective atmosphere. The plated contact surfaces are isolatedFrom the outside environment, which protects the contacts from contamination.Reed switches are available as form a (normally open) and form c (changeover), and are operated using a magnetic field generated by either a permanent magnet or current-carrying coil.The features that make the reed switch a valuable tool include compact size, low weight, quick response time,Long life (nominally 50 million operations) and low cost.Some common applications are: Reed relays, automotive sensors, robotics sensors, security sensors and toys and games.They are also available in moulded packages affording protection from damage and in surface mount styles.