PRODUCT FAMILY DATA SHEET XLamp CXB1816 LED PRODUCT DESCRIPTION FEATURES TABLE OF CONTENTS The XLamp CXB1816 LED Array is a 12mm optical source Characteristics ............................................... 2 member of the second generation of the Mechanical and optical design Operating Limits ............................................. 2 CXA family that delivers up to 30% higher consistent with other CXA18 and Flux Characteristics, EasyWhite Order efficacy and up to 20% higher lumens than CXB18 LEDs with a 12mm optical Codes and Bins .............................................. 3 the first generation in the same LES. The source Flux Characteristics, Premium Color Order higher performance second generation Available in 70, 80 and 90minimum Codes and Bins .............................................. 6 CXA LED Arrays provide a drop-in CRI options Relative Spectral Power Distribution, performance upgrade to existing CXA LED EasyWhite 2, 3 and 5step binning EasyWhite .................................................... 7 designs to shorten product development Premium Color 3-step binning Relative Spectral Power Distribution, time. In addition, the CXB LEDs also allow Forward voltage option: 36V class Premium Color ............................................... 7 lighting manufacturers to achieve the 85C binning and characterization Electrical Characteristics ............................... 8 same or better performance with a smaller Extremely uniform color over viewing Relative Luminous Flux .................................. 9 LES, enabling a smaller, more impactful angle Typical Spatial Distribution .......................... 10 luminaire. Available in 2step, 3step and Top-side solder connections Performance Groups - Brightness .............. 10 5-step EasyWhite bins and 3-step Premium Thermocouple attach point EasyWhite Performance Groups - Color bins, the CXB1816 LED delivers high NEMA SSL3 2011 standard flux bins Chromaticity ................................................. 11 lumen output and high efficacy in a single, RoHS and REACh compliant Premium Color Performance Groups - easy-to-use package that eliminates the UL recognized component (E349212) Chromaticity ................................................. 12 need for reflow soldering. EasyWhite Bins Plotted on the 1931 CIE Color Space .................................................. 12 The CX Family LED Design Guide provides Premium Color Bins Plotted on the 1931 basic information on the requirements CIE Color Space............................................ 13 to use the CXB1816 LED successfully in Bin and Order Code Formats ....................... 14 luminaire designs. Mechanical Dimensions .............................. 14 Thermal Design ............................................ 15 Notes ............................................................ 16 Packaging ..................................................... 17 Cree LED / 4400 Silicon Drive / Durham, NC 27703 USA / +1.919.313.5330 / www.cree-led.com 2015-2021 Cree LED. The information in this document is subject to change without notice. Cree and the Cree logo are registered trademarks, and CLD-DS119 the Cree LED logo is a trademark, of Wolfspeed, Inc. XLamp and EasyWhite are registered trademarks of Cree LED. UL and the UL logo are registered 1 REV 9A trademarks of UL LLC. XLAMP CXB1816 LED CHARACTERISTICS Characteristics Unit Minimum Typical Maximum Viewing angle (FWHM) degrees 115 ESD withstand voltage (HBM per MilStd883D) V 8000 DC forward current mA 900* Reverse current mA 0.1 Forward voltage (450mA, 85C) V 34.1 38 * Refer to the Operating Limits section. OPERATING LIMITS The maximum current rating of the CXB1816 depends on the case temperature (Tc) when the LED has reached thermal equilibrium under steadystate operation. The graph shown below assumes that the system design employs good thermal management (thermal interface material and heat sink) and may vary when poor thermal management is employed. Please refer to the Mechanical Dimensions section on page 14 for the location of 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 135C to ensure optimal LED lifetime. Please refer to the Thermal Design section on page 15 for more information on LES temperature measurement. CXB1816 Standard 1000 85 C, 900 mA 900 800 700 600 500 400 125 C, 346 mA 300 200 100 0 0 25 50 75 100 125 150 Case Temperature (C) 2015-2021 Cree LED. The information in this document is subject to change without notice. Cree and the Cree logo are registered trademarks, and CLD-DS119 the Cree LED logo is a trademark, of Wolfspeed, Inc. XLamp and EasyWhite are registered trademarks of Cree LED. UL and the UL logo are registered 2 REV 9A trademarks of UL LLC. If (mA)