Status displays, often called indicators, for electronic components are helpful wherever they assume safety-relevant functions. In an electronic circuit, for example, it may be of interest to know whether a fuse is still functioning. A rapid visual status display facilitates testing.
In the past, glow lamps were used as an indicator for this. However, due to stricter requirements to reduce the standby current, such indicators have not been allowed to be used for some time. Up to now, indicators based on LED technology have taken their place.
Read the whitepaper to learn more.