Reed switch
Glass reed switch · contacts close when a magnet is near · 0.5 A, 100 V · used in door/window sensors, bicycle speedometers and float switches · click it to bring the magnet
Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: Glass reed switch
Pins
- Lead 1
- Lead 2
Ratings and limits
| Switching | 0.5 A, 100 V, 10 W |
|---|---|
| Operate | ≈ 15–20 AT |
| Life | 10⁸ operations at signal level |
How to use it
Two ferromagnetic reeds in a glass tube touch when a magnet is near. Door and window alarm sensors, float switches, bicycle computers. Fragile glass: don’t bend the leads at the body.