A reed switch has two pieces of metal that are separated by a tiny gap. In the presence of a magnetic field, that gap is closed, so current can flow across them like an on/off switch.
- Max. Contact Rating : 10W
- Max. Switching Voltage : DC100V
- Min. Breakdown Voltage : DC 220V
- Max. Switching Current : 0.5A
- Max. Carry Current : 1.0A
- Max. Initial Contact Resistance : 100mΩ