Special Order: HTS559-U=35MM HS ASSY ULTEM CL Device Type: BGA Fin Style: Radial Number of Fins: 1 Power: 15 W 10 W 5 W BGA Radial 1 15 W | Heat Sink | Part Number: 3-1542003-4 | Internal Number: 3-1542003-4 | Alias Number: HTS559-U | TE Connectivity