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- XLamp - Model CHA0304 - Led
XLamp - Model CHA0304 -Led
The XLamp® CHA LED family delivers an industry-leading combination of lumen density and efficacy in LES sizes as small as 3.3 mm. CHA family LEDs deliver 50% higher lumen density than the existing XLamp CMU family LEDs for significant improvements in beam angle and intensity. The XLamp CHA family LEDs are also compatible with the available ecosystem of holders and optics designed for high-intensity COBs. XLamp CHA LEDs are optimized for premium indoor lighting applications, including track, spot and downlight, as well as outdoor lighting.
- 3.3-mm optical source
- Available in 80-, 90‑, and 95‑minimum CRI options
- EasyWhite® 2- and 3-step binning
- Premium Color 2- and 3-step binning
- Forward voltage option: 21-V class
- 85 °C binning and characterization
- Maximum drive current: 300 mA
- 114° viewing angle, uniform chromaticity profile
- Top-side solder connections
- RoHS and REACH compliant
- UL® recognized component (E349212)
The maximum current rating of the CHA0304 LED depends on the case temperature (Tc) when the LED has reached thermal equilibrium under steady-state operation. The graphs shown below assume that the system design employs good thermal management (thermal interface material and heat sink) and may vary when poor thermal management is employed. Either solder pad shown in the Mechanical Dimensions section on page 16 can be used as the Tc measurement point.
Another important factor in good thermal management is the temperature of the Light Emitting Surface (LES). Cree LED recommends a maximum LES temperature of 140 °C to ensure optimal LED lifetime. Please refer to the Thermal Design section on page 17 for more information on LES temperature measurement.