SMJL-3P22W4P3 Datasheet, PDF (5/28 Pages) Seoul Semiconductor – Integrated AC LED Solution

Thermal Resistance
Product Data Sheet
SMJL-3P22W4P3 – Acrich3 22W
Part
MJT5630-7C
Package
Power Dissipation [W]
SAW8KG0B Max 0.58
Maximum
Junction Temperature [℃]
125
Rθ_j-s [℃/W]
27
The MJT5630-7C has a thermal resistance of 27℃/W from junction of the LED to the
LED lead.
The maximum junction temperature of the MJT5630 is 125℃, therefore the maximum lead
temperature T_{s_max} is
T_{s_max} = T_{j_max} - (Rθ_j-s * P_d)
= 125℃ - (27℃/W * 0.58W) = 109.34℃
Although this is the maximum lead temperature, it is recommended to keep the lead temperature
under 70℃.
Rev1.1, Sep 10, 2015
5
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