NICHIA STS-DA1-2851F <Cat.No.150622>
NICHIA CORPORATION
SPECIFICATIONS FOR WHITE LED
NFSW385AT
●
Pb-free Reflow Soldering Application
●
Built-in ESD Protection Device
●
RoHS Compliant
NICHIA STS-DA1-2851F <Cat.No.150622>
SPECIFICATIONS
(1) Absolute Maximum Ratings
Item
Forward Current
Pulse Forward Current
Allowable Reverse Current
Power Dissipation
Operating Temperature
Storage Temperature
Junction Temperature
Symbol
I
F
I
FP
I
R
P
D
T
opr
T
stg
T
J
Absolute Maximum Rating
250
350
85
825
-40~100
-40~100
130
Unit
mA
mA
mA
mW
°C
°C
°C
* Absolute Maximum Ratings at T
S
=25°C.
* I
FP
conditions with pulse width
≤10ms
and duty cycle
≤10%.
(2) Initial Electrical/Optical Characteristics
Item
Forward Voltage
Luminous Flux
Rnn
Luminous Intensity
Color Rendering Index
Luminous Flux
R70
Luminous Intensity
Color Rendering Index
Luminous Flux
R8000
Luminous Intensity
Color Rendering Index
Chromaticity Coordinate
Thermal Resistance
* Characteristics at T
S
=25°C.
* Luminous Flux value as per CIE 127:2007 standard.
* Chromaticity Coordinates as per CIE 1931 Chromaticity Chart.
* R
θJS
is Thermal Resistance from junction to T
S
measuring point.
x
y
Symbol
V
F
Φ
v
I
v
R
a
Φ
v
I
v
R
a
Φ
v
I
v
R
a
-
-
R
θJS
Condition
I
F
=65mA
I
F
=65mA
I
F
=65mA
I
F
=65mA
I
F
=65mA
I
F
=65mA
I
F
=65mA
I
F
=65mA
I
F
=65mA
I
F
=65mA
I
F
=65mA
I
F
=65mA
-
Typ
2.91
36.3
11.2
-
35.6
10.7
73
34.5
10.6
83
0.3447
0.3553
13
Max
-
-
-
-
-
-
-
-
-
-
-
-
19
Unit
V
lm
cd
-
lm
cd
-
lm
cd
-
-
-
°C/W
1
NICHIA STS-DA1-2851F <Cat.No.150622>
RANKS
Item
Forward Voltage
Luminous Flux
-
P12
P11
P10
Rnn
Color Rendering Index
R70
R8000
R
a
R
a
R
a
R
9
Rank
Min
2.4
36.0
30.3
25.5
-
70
80
0
Max
3.3
42.8
36.0
30.3
-
-
-
-
-
-
-
-
lm
Unit
V
Color Ranks
The color rank has a chromaticity range within a 5-step MacAdam ellipse.
Rank
sm505
Center Point
Minor Axis
Major Axis
Ellipse Rotation Angle
x
y
a
b
Φ
0.3447
0.3553
0.005925
0.014030
-31.78
Rank
sm575
0.3287
0.3417
0.005145
0.013015
-31.56
Rank
sm655
0.3123
0.3282
0.004515
0.010935
-32.35
The color rank has a chromaticity range within a 7-step MacAdam ellipse.
Rank
sm5070a
Center Point
Minor Axis
Major Axis
Ellipse Rotation Angle
x
y
a
b
Φ
Rank
sm5070b
Rank
sm5070c
0.3447
0.3553
0.008295
0.019642
-31.78
Rank
sm5770a
Center Point
Minor Axis
Major Axis
Ellipse Rotation Angle
x
y
a
b
Φ
Rank
sm5770b
Rank
sm5770c
0.3287
0.3417
0.007203
0.018221
-31.56
Rank
sm5770d
Rank
sm5770e
Rank
sm5770f
Rank
sm5070d
Rank
sm5070e
Rank
sm5070f
2
NICHIA STS-DA1-2851F <Cat.No.150622>
Rank
sm6570a
Center Point
Minor Axis
Major Axis
Ellipse Rotation Angle
* Ranking at T
S
=25°C.
* Forward Voltage Tolerance: ±0.05V
* Luminous Flux Tolerance: ±5%
* Color Rendering Index R
a
Tolerance: ±2
* Color Rendering Index R
9
Tolerance: ±6.5
x
y
a
b
Φ
Rank
sm6570b
Rank
sm6570c
0.3123
0.3282
Rank
sm6570d
Rank
sm6570e
Rank
sm6570f
0.006321
0.015309
-32.35
* The R
9
value for the above rank shall be greater than 0.
* Chromaticity Coordinate Tolerance: ±0.003
* LEDs from the above ranks will be shipped.
The rank combination ratio per shipment will be decided by Nichia.
Definition of the MacAdam ellipse ranks:
b
60°
A perfect circle is divided
into 60 degree-sections
and then transformed
into the MacAdam ellipse
that is presented
on the chromaticity diagram
in this document.
Φ
a
3
NICHIA STS-DA1-2851F <Cat.No.150622>
CHROMATICITY DIAGRAM
0.38
6500K
0.37
sm5070b
5700K
5000K
sm5070c
0.36
sm5750c
sm5070a
0.35
sm5750b
sm5750a
sm6570c
sm6570b
sm5070d
sm505
sm5070e
sm5070f
sm5770d
sm575
sm5770e
sm6570a
sm5770f
sm6570d
y
0.34
0.33
0.32
黒½放射軌跡
Blackbody Locus
0.31
0.29
sm655
sm6570e
sm6570f
0.30
0.31
0.32
x
0.33
0.34
0.35
0.36
4
