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ASMG-PT00-00001 Datasheet(PDF) 12 Page - Broadcom Corporation.

Part No. ASMG-PT00-00001
Description  1W Tri-Color High Power LED
Download  13 Pages
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Maker  BOARDCOM [Broadcom Corporation.]
Homepage  http://www.broadcom.com
Logo BOARDCOM - Broadcom Corporation.

ASMG-PT00-00001 Datasheet(HTML) 12 Page - Broadcom Corporation.

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ASMG-PT00-00001 Data Sheet
1W Tri-Color High Power LED
Do not use the LED in the vicinity of material with sulfur
content, in environments of high gaseous sulfur
compound and corrosive elements. Examples of
materials that may contain sulfur are rubber gaskets,
RTV (room temperature vulcanizing) silicone rubber,
rubber gloves, and so on. Prolonged exposure to such
environments may affect the optical characteristics and
product life.
Avoid rapid changes in ambient temperature especially
in high-humidity environments as this will cause
condensation on the LED.
If the LED is intended to be used in harsh or outdoor
environments, protect the LED by means of protective
cover against damages caused by rain water, dust, oil,
corrosive gases, external mechanical stress, and so on.
Thermal Management
Optical, electrical and reliability characteristics of LED are
affected by temperature. The junction temperature (TJ) of
the LED must be kept below allowable limit at all times. TJ
can be calculated as follows:
TJ = TS + RθJ-S × IF × VFmax
Figure 20: Thermal Management
To measure the soldering point temperature, a
thermocouple can be mounted on the TS point as shown in
the preceding figure. Verify the TS of the LED in the final
product to ensure that the LEDs are operated within all
maximum ratings stated in the datasheet.
Eye Safety and Precautions
LEDs may pose optical hazards when in operation. Do not
look directly at operating LEDs as it may be harmful to the
eyes. For safety reasons, use appropriate shielding or
personnel protection equipment.
where TS
= LED solder point temperature as shown
in the following figure (°C)
RθJ-S = Thermal resistance from junction to
solder point (°C/W)
= Forward current (A)
VFmax = Maximum forward voltage (V)

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