NESL157B Nichia, NESL157B Datasheet - Page 3

• Manufacturer Part Number: NESL157B
• Manufacturer: Nichia

Specifications of NESL157B

• Size Lxwxh (mm): 3.0x1.4x0.52
• Lumi-nous Inten-sity Typ(cd): 5.4
• Lumi-nous Flux Typ(lm)): 16.0
• Ra Min: 80
• Forward Voltage Vf(v) Typ: 2.90
• Forward Voltage Vf(v) Max: 3.10
• Directivity (degree): 120
• If (ma): 50
• Mounting Style: Through Hole

Color Ranks
RANKS
* Ranking at T
* Tolerance of measurements of the Forward Voltage is ±0.05V.
* Tolerance of measurements of the Luminous Flux is ±7%.
* Tolerance of measurements of the Color Rendering R
* Tolerance of measurements of the Color Rendering R
* The R
* Tolerance of measurements of the Chromaticity Coordinate is ±0.005.
* A shipment shall consist of LEDs in a combination of the above ranks.
Forward Voltage
Luminous Flux
Color Rendering
The percentage of each rank in the shipment shall be determined by Nichia.
x
y
x
y
x
y
9
Item
value for the above rank shall be greater than 0.
0.4373
0.3893
0.3898
0.3716
0.3515
0.3487
A
=25°C.
0.4562
0.4260
0.3996
0.4015
0.3548
0.3736
-
P8
P7
P6
R8000
Rank sw27
Rank sw35
Rank sw45
Rank
R
R
0.4813
0.4319
0.4299
0.4165
0.3736
0.3874
a
9
18.0
15.1
12.7
Min
2.7
0.4593
0.3944
0.4147
0.3814
0.3670
0.3578
80
0
a
9
is ±2.
is ±6.5.
21.4
18.0
15.1
Max
3.1
-
-
x
y
x
y
Unit
lm
0.4147
0.3814
0.3670
0.3578
V
-
-
0.4299
0.4165
0.3736
0.3874
Rank sw30
Rank sw40
0.4562
0.4260
0.3996
0.4015
0.4373
0.3893
0.3898
0.3716
2