STW8B12B Datasheet, PDF (3/30 Pages) Seoul Semiconductor – Thermally Enhanced Package Design

Performance Characteristics
Product Data Sheet
STW8B12B – Mid-Power LED
Table 2. Product Selection Guide, I_F=40mA , T_a=25ºC, RH30%
Part Number
STW 8B12B
CCT (K) ^[1]
RANK
Luminous Intensity ^[2]
I_V (cd)
Luminous Flux ^[3]
Ф_V (lm)
CRI
R_a
Typ.
Min
Max
Min
Max
Min.
M0
4.0
4.5
12.0
13.5
80
M5
4.5
5.0
13.5
15
80
6500
N0
5.0
5.5
15
16.5
80
N5
5.5
6.0
16.5
18
80
M0
4.0
4.5
12.0
13.5
80
M5
4.5
5.0
13.5
15
80
5600
N0
5.0
5.5
15
16.5
80
N5
5.5
6.0
16.5
18
80
M0
4.0
4.5
12.0
13.5
80
M5
4.5
5.0
13.5
15
80
5000
N0
5.0
5.5
15
16.5
80
N5
5.5
6.0
16.5
18
80
M0
4.0
4.5
12.0
13.5
80
M5
4.5
5.0
13.5
15
80
4500
N0
5.0
5.5
15
16.5
80
N5
5.5
6.0
16.5
18
80
M0
4.0
4.5
12.0
13.5
80
M5
4.5
5.0
13.5
15
80
4000
N0
5.0
5.5
15
16.5
80
N5
5.5
6.0
16.5
18
80
M0
4.0
4.5
12.0
13.5
80
M5
4.5
5.0
13.5
15
80
3500
N0
5.0
5.5
15
16.5
80
N5
5.5
6.0
16.5
18
80
Notes :
(1) Correlated Color Temperature is derived from the CIE 1931 Chromaticity diagram.
Color coordinate : 0.007
(2) Seoul Semiconductor maintains a tolerance of 7% on Intensity and power measurements.
The luminous intensity IV was measured at the peak of the spatial pattern which may not be
aligned with the mechanical axis of the LED package.
(3) Calculated performance values are for reference only.
3
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