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What Can Be The Cause And What Are The Possible Countermeasures If The M2BJ-B[][] Pushbuttons AC/DC Shared Buzzer Does Not Sound?

There is a smoothing capacitor in the internal circuit and it is possible that inrush current has caused the switching power supply to overload, resulting in no outputs.
Possible Countermeasures
1.If there is a switching power supply overload, it is possible to reduce the inrush current by connecting an external limiting resistor (20 to 30 Ω) in series.
2.The M2BJ-B[][]-D for DC only has no inrush current.

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Created 2009-01-07
Modified 2009-01-07
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