Designed to deliver maximum heat dissipation using a minimum of board space, the heatsinks are also easy to use.  The huge choice includes clip-on devices for rapid assembly, PCB-mount models and high-performance fan-cooled modules. Clip-on varieties can withstand high levels of shock and vibration. Extruded heatsinks are available in any desired length, with a choice of machining and surface finishes. Some PCB-mount models are available with insulation rings, and a range of Kapton transistor insulation washers and polyamide insulation caps are detailed in the catalogue, as are an assortment of PCB-mount sockets and accessories including supports, contact strips, mounting pads, diode-holders and spacers.