I'd like to know how can I split a string with tabs as delimiters

I tried the following code

string inputString = "0\t100\t-5\t300\t500"; \\ \t are tabs
string delimStr ="\t";
char [] delimiter = delimStr.ToCharArray();
string [] split = input.Split(delimiter, x);

at this point, I expected the split array to contain the numbers separately (0, 100, -5, 300, and 500)

but instead the array only contains one element that is 0\t100\t-5\t300\t500

Any tips on this?