App note: Reed switch operation

Reed switches operation app note from Hermetic Switch Inc. (HSI). Link here (PDF) A reed switch is activated by a magnetic !eld. It’s important to realize that there are numerous possibilities for a switch’s orientation within a given magnetic field. The length of the magnet and the length of the reed switch both affect the […]

App note: Reed switch basics

Application note from Hermetic Switch Inc. (HSI) on simple reed switches. Link here (PDF) A reed switch consists of two or three metal reed contacts (blades) that are hermetically sealed inside a glass tube containing an inert atmosphere. Reed switches come in various sizes, magnetic sensitivities, high power capabilities, high voltage capability, contact configurations, and […]