|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.