Reed Switch / Magnetic Contact

The reed contact is a mechanical switch actuated by a magnet. The contact is made of an iron-nickel alloy and sealed in a glass tube. With its three connections it can be used as normally open or normally closed.

Recommended Accessories:

• 8x5mm Neodymium Disc Magnet
• 5x2mm Neodymium Disc Magnet

Features:

• Three connections: normally open or normally closed
• Contactless actuation with a magnet
• The glass tube is fragile: when bending the wires, do not transfer force to the glass

Application Examples:

• Door and window contacts
• Detecting position or movement with a magnet

Documentation:

• Reed Switch Hookup Guide (SparkFun)

Technical Data:

• Glass bulb length: 14 mm
• Glass bulb diameter: 2.5 mm
• Total length: 52 mm
• Maximum power: 4 W
• Maximum switching current: 0.25 A
• Maximum load current: 0.5 A
• Weight: 0.2 g

Scope of Delivery:

• 1× reed switch / magnetic contact