All attachable heatsinks aremAde from black anodised diecast aluminium
Heatsinks in the FK 237 Series have the following features：
A very slim design ensures that it does not require much space Easy assembly by sliding the heatsink onto the TO220 housing Optimal heat transfer as the fastening clips on the TO 220 housing press firmly on the heatsink Effective heat dissipation in both horizontal and vertical installation positions
Versions：
FK 220-SA-220 No solder tags, with a transistor retaining spring for simple attachment to the TO 220 housing FK 237-SA-220 H With tin-plated solder tags, enabling it to be soldered directly onto the printed circuit board in a horizontal position FK 237-SA-220 O No solder tags FK 237-SA-220V With tin-plated solder tags, enabling it to be soldered directly onto the printed circuit board in a vertical position
