The present invention provides a heat sink for use with a heat-generating electrical component. The heat sink comprises a heat-conducting body having first and second opposing edges, and a clamping arm. The heat sink is configured to at least partially support the electrical, heat-generating component. The heat-conducting body further includes a receiving catch coupled to the first edge. The clamping arm has a first end hinged to the heat-conducting body at the second edge and a second end configured to cooperatively engage the receiving catch and maintain the clamping arm in a locked position.