Relay
From Vlsiwiki
module relay (c1, c2, pin, nin);
inout c1, c2;
input pin, nin;
electrical c1, c2, pin, nin;
parameter real r=1 ;
analog begin @(cross(V(pin,nin))) discontinuity(0) ;
if (V(pin,nin) >= 0)
I(c1,c2) <+ V(c1,c2)/r;
else
I(c1,c2) <+ 0 ;
end endmodule
