The light-emitting diode of an LED package radiates light and heat according to the input power. However, the surface area of an LED package is quite small,and the package itself is expected to release little heat into the atmosphere.An external radiator such as a heat sink is thus required.The heat dissipation structure up to the connection portion of the external radiator uses mainly heat conduction.
This document provides technical data regarding the heat dissipation structure of the CITIZEN CL-L251 Series LED light engine. It explains the significance of managing junction temperature (Tj) and describes the package's laminated structure, which utilizes an aluminum substrate to efficiently conduct heat away from the LED die.
| Rated Input Power (CL-L251-C4) | 4.63W |
|---|---|
| Rated Input Power (CL-L251-C6) | 6.7W |
The simulated heat sink has a width of 64mm, a height of 40mm, and a variable length.
The rated input power for this package is 6.7W.