4. Absolute Maximum Ratings (Note) (Unless otherwise specified, Ta = 25 )
Forward current (DC)
See Fig. 4.1.
PD 1.32 W
-40 to 100
-40 to 100
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even
if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
("Handling Precautions"/"Derating Concept and Methods") and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Fig. 4.1 IF - Ta (Note 1), (Note 2)
Note 1: The junction-to-ambient thermal resistance, Rth(j-a), should be kept below 35 /W so that this product is not
exposed to a condition beyond the absolute maximum ratings.
Rth(j-a): Thermal resistance from the LED junction to ambient temperature
Note 2: This LED has a relatively large (mid-range) operating power. When it is mounted in a narrow space or together
with other components, they have mutual effects on their thermal characteristics; most notably, Rth(j-a) affects
their junction temperatures. Therefore, care should be exercised to thermal management and PCB
If this LED operates at high temperatures, be sure to provide adequate heat dissipation by using an MCP,
thermally enhanced PCB and the like, and perform thorough evaluation.