Abstract
AbstractSince the miniature and high‐density electronic apparatus was developed, the miniaturization of electronic components has been in high demand. The reed switch is not an exception. The reed switches for the P.C.B. mounted miniature relays and the surface mounted miniature relays have also been in high demand. The reed switch which has been used for communication is rather large (46 mm in its entire length and composed of a 28‐mm‐long glass tube). However, the design of the switch itself is almost ideal.This paper discusses the miniaturization limit of the reed switch with respect to the mechanical and magnetic properties. Assuming that the breakdown voltage, the contact rating and the carry current decrease, it was found that the ultraminiature reed switch with glass inner length of 3.6 mm and glass inner diameter of 0.8 mm can be mass‐produced by the existing processing technology.
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