Calculate Power Dissipation of 0ohm resistor
Even nominally &quot;0 ohm&quot; resistors have some resistance.
The datasheet for the part you linked says that zero-ohm resistors have &quot;&lt; 20 mOhm&quot; of resistance.
I don't know how you're using this part, but in most cases for a resistor that small, the exact value of the resistor won't affect the current flowing through it very much, so you can conservatively assume that the resistor value is actually equal to 20 mOhm and use P = I^2 R to find the maximum rated current.