|Influence of magnetic fields The magnetic circuit of an NEC
Miniature Signal Relay is constructed so that the relay does not
easily malfunction due to the influence of external magnetic
fields. However, under the influence of magnetic flux leaking
from a transformer, speaker, or magnet placed in the vicinity of
the relay, the must operate voltage, must release voltage,
operate time, release time and other dynamic characteristics may
change. In applications where a change in these characteristics
poses problems, it is necessary to take measures such as
magnetic shielding. The magnetic flux leaking from relays that
are densely located may cause them to interfere with each other.
Fig. 9 shows examples of the mounting, magnetization, and change
in the must operate voltage of signal relays in the EA2 series.
In applications where these characteristics changes pose a
problem, it is necessary to reduce the mounting density.