OSRAM Opto Semiconductors presents How to Read a Datasheet Part 1 of 2 - Typical/Maximum Characteristics and Binning as part of the LED Fundamentals section on the LED Light Site. In this presentation we examine the key parameters specified on the first half of an LED datasheet from OSRAM Opto Semiconductors. The datasheet captures some of the most important technical characteristics of an LED. These include electrical, optical and thermal quantities, knowledge of which is paramount for an LED system design. Also, it has information on ordering codes, labeling and packaging of the LEDs. Fan us on Facebook https://www.facebook.com/OSRAMLEDLight and visit our website for more information http://ledlight.osram-os.com/

1. www.osram-os.com
LED Fundamentals
How to Read a Datasheet
(Part 1 of 2) Typical/Maximum
Characteristics and Binning
08/2015

2. LED Parameters
Optical Quantities
 Luminous Intensity IV
 Luminous Flux FV
 Radiation Characteristics
 Viewing Angle 2φ
 Dominant Wavelength ldom
 Color Coordinates cx, cy
Thermal Quantities
 Junction Temperature Tj
 Temperature Coefficient TC ldom
 Thermal Resistance RthJS
Electrical Quantities
 Forward Voltage VF
 Forward Current IF
 Reverse Current IR
Misc
 Color Rendering Index - CRI
 Efficacy

3. OSLON Square (GW CSSRM1)

4. Ordering Information
 Luminous Flux at binning current is listed in lumens (lm) or millilumens (mlm).
 Color Temperature is listed in Kelvin (K).
 Example GW CSSRM1.EC-MQMS-5L7N-1
 MQMS: One brightness bin MQ, MR, or MS will be shipped for any one reel.
 5L7N: One chromaticity bin from 5L7N will be shipped for any one reel.
 1: One forward voltage bin will be shipped for any one reel.

5. Maximum Ratings

6. Typical Characteristics

7. Brightness and Forward Voltage Groups

8. Chromaticity Coordinates
ANSI Quadrangles

9. Color Chromaticity Groups

10. Group Name on Label

11. Spectral Emission
Vl is the human eye sensitivity curve

12. Radiation Characteristics
 For OSLON Square (GW CSSRM1) the radiation curve hits the 50% line at (φ )60°
 Therefore the viewing angle (2 φ) is here equivalent 120°

13. LA CPDP
Peak wavelength
Wavelength with the highest emitted electromagnetic
power
Dominant wavelength
Wavelength considering human eye
sensitivity; defines the color we can see

14. www.osram-os.com
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Thank you for your attention

15. Disclaimer
All information contained in this document has been checked with the greatest
care. OSRAM Opto Semiconductors GmbH can however, not be made liable for
any damage that occurs in connection with the use of these contents.
OSRAM Opto Semiconductor GmbH makes no representations and
warranties as to a possible interference with third parties' intellectual property
rights in view of products originating from one of OSRAM Opto Semiconductor
GmbH's partners, or in view of products being a combination of an OSRAM
Opto Semiconductor GmbH's product and a product of one of OSRAM Opto
Semiconductor GmbH's partners. Furthermore, OSRAM Opto Semiconductors
GmbH cannot be made liable for any damage that occurs in connection with the
use of a product of one of OSRAM Opto Semiconductor GmbH's partners, or
with the use of a combination of an OSRAM Opto Semiconductor GmbH's
product and a product of one of OSRAM Opto Semiconductor GmbH's partners.