I'm using the following resistor: click. To be precise, the
MCKNP05SJ050KAA9 found here. From what I've been able to determine, my device is the
MCKNP 500-S, measuring in with a length of 17.5 mm and diameter of 6.5 mm.
Now, I'm wondering whether it is first of all possible, and second of all needed to put a heat sink on though-hole power resistors.
At first I had found SMD Power resistors, though the only ones that could dissipate the required 4.5 W was a 35W. This one did have a metal plate on top for a heat sink. But for Through-hole components, I haven't got a clue.