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Compact magnetic door contact...
MAGNETIC-SWITCH
Compact magnetic door contact inserted in a molded plastic support
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Compact magnetic switch
Compact magnetic door contact inserted in a molded plastic support
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This sensor is mainly a magnetic contact commonly called "reed switch". The contact is inserted in a molded plastic support. At rest, therefore without solicitation of the magnet, the reed switch is open (no connection between the two wires).
The other half of the sensor is a magnet. When the magnet is within 13mm of the switch, it closes.
This type of sensor is mainly used to detect the opening of a cabinet door, which is why it is supplied with fixing lugs and screws. The latter are also equipped with double-sided tapes for easy installation without having to screw the screws.
To mount a magnetic door contact, we suggest that you have a 10kOhms resistor and a 100Ohms protection resistor.
Since the magnetic door contact behaves exactly like a push button, it is not necessary to provide anything other than resistors to mount a pull-up circuit (or pull-down) according to your choice.