The forged pins increase the surface area for greater free air convection. Forced air convection applications will benifit from the ability to force air in multiple directions through the pins. This creates versitility as the designer in no longer stuck forcing air in a single direction. Designed for TO-126, TO-220, TO-247 and TO-264 devices. Each heatsink utilizes the patented clipping system. This system requires on tools and can lock in the device with on finger. The cam locking system engages the device securely for a proper thermal connection. The P series from Ohmite is the ideal type of heat sink for high power density and small size (1U or 2U) electronic packaging with forced convection cooling.