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delay circuit for activating electric actuator with car battery

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behrouz2007

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i want a circuit for herein application:


when i turn on the SW ,the relay activated after seconds
but because of low impedance of relay(160 ohms), this circuit did not work
my question is: how i can solve this problem?
is there any high impedance 12V relay that can i use it
 

Simple 0..5sec off-delay

Simple_Rel_Off_Del.png

Simple 0..100sec off-delay MosFET

FETpoweroffdelay.jpg
 
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