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Solenoide 12V with 24V power supply

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suromenggolo

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How to connect solenoide 12V, 300mA on power supply 24V..?
Can I series with resistor..?
 

You can use 40Ω (39Ω) 5W resistor or 12V 5W zener diode ..

Regards,
IanP
 
thax IanP...
why about heat from resistor..? very hot may be destroy the resistor
 

If 100% of time under power, this resistor will convert 3.6W (12V @ 300mA) to heat.
Therefore for continous operation you should consider resistor rated for 5W, or more ..

Regrads,
IanP
 

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