- Contact Person : Mr. Li Alex
- Company Name : Misensor Tech (Shanghai) Co., Ltd.
- Tel : 86-21-60976207
- Fax : 86-21-60976212
- Address : Shanghai,Shanghai,Floor 2, Building 4, No. 25, Hangming Road, Hangtou Town, Pudong New District
- Country/Region : China
- Zip : 201316
Standard Reed Switches
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Our standard reed switch series are our most popular all purpose switches ranging in size from 7-14mm. They may be used as a proximity sensor or internal to a relay.
ApplicationsGeneral PurposeAutomotiveSpecifications| Rated Power (W) | 0 to 10 |
| Switching Voltage (VDC) | 0 to 200 |
| Switching Current (A) | 0 to 0.5 |
Order informations
MPQ/MOQ: 2K
Reed Switch Structure and Principle of OperationThe reed switches comprise two ferromagnetic reeds placed with a gap in between and hermetically sealed in a glass tube. The glass tube is filled with inert gas to prevent the activation of the contacts. The surfaces of the reed contacts are plated with rhodium or iridium.
The reed switch is operated by the magnetic field of an energized coil or a permanent magnet which induces north (N) and south (S) poles on the reeds. The reed contacts are closed by this magnetic attractive force. When the magnetic field is removed, the reed elasticity causes the contacts to open the circuit.
The transfer type reed switch is normally ON, due to mechanical bias of the common (COM) lead, which is between the normally closed (N.C) reed contact and the normally open (N.O) reed contacts.
When an external magnetic field is induced, the N.C blade is not affected because it is non-magnetic but the COM lead is attracted by the N.O lead and moves. When the magnetic field is removed, COM lead again moves to the N.C lead by mechanical.
Standard Reed Switches
