Reed Switch

Reed Switch Magnet Interaction

Standex Electronics

This tutorial will define key terms for magnets and reed switches.  Additionally, it will describe how the positioning of the magnet’s north and south poles relative to the reed switch, produces different magnetic field arrays.  Understanding these magnetic field arrays will give insight into how the magnet and reed switch form their sensing function.
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Related Parts

ImageManufacturer Part NumberDescriptionCircuitOperate RangeAvailable Quantity
SWITCH REED SPST-NO 1A 200VMK23-35-B-2SWITCH REED SPST-NO 1A 200VSPST-NO10 ~ 15AT0View Details
SWITCH REED SPST-NO 500MA 200VMK23-66-B-2SWITCH REED SPST-NO 500MA 200VSPST-NO10 ~ 15AT1850 - ImmediateView Details
SWITCH REED SPST-NO 500MA 170VMK23-80-B-2SWITCH REED SPST-NO 500MA 170VSPST-NO10 ~ 15AT0View Details
SWITCH REED SPST-NO 400MA 200VMK23-87-B-2SWITCH REED SPST-NO 400MA 200VSPST-NO10 ~ 15AT5022 - ImmediateView Details
SWITCH REED SPDT 500MA 175VMK23-90-C-2SWITCH REED SPDT 500MA 175VSPDT15 ~ 20AT9596 - ImmediateView Details
SWITCH REED SPST-NO 1A 200VKSK-1A35-1015SWITCH REED SPST-NO 1A 200VSPST-NO10 ~ 15AT0View Details
SWITCH REED SPST-NO 500MA 180VKSK-1A66-1015SWITCH REED SPST-NO 500MA 180VSPST-NO10 ~ 15AT27464 - ImmediateView Details
SWITCH REED SPST-NO 500MA 180VKSK-1A66-1520SWITCH REED SPST-NO 500MA 180VSPST-NO15 ~ 20AT656 - ImmediateView Details
SWITCH REED SPST-NO 500MA 170VKSK-1A80-1015SWITCH REED SPST-NO 500MA 170VSPST-NO10 ~ 15AT2683 - ImmediateView Details
SWITCH REED SPST-NO 400MA 200VKSK-1A87-1015SWITCH REED SPST-NO 400MA 200VSPST-NO10 ~ 15AT0View Details
PTM Published on: 2012-03-21