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[SOLVED] automotive relay problem to microcontroller

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did you install mur8100 instead of usual diode ?
 

nop,, problem wid my project, so i dint,,, i placed MCU near CDI capacitor its stucked,,,, have to replace somewhere after ill do that
 

Finally solved my problem by adding pi filter of 2-2000uf cap and 1 - 100mh inductor, thanks all
AND also used 1 TVS diode in parallel
 
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