NICHIA STS-DA1-3555F <Cat.No.180925>

3

Rank

sm6550a

Rank

sm6550b

Rank

sm6550c

Rank

sm6550d

Rank

sm6550e

Rank

sm6550f

Center Point

x

0.3123

y

0.3282

Minor Axis

a

0.004515

Major Axis

b

0.010935

Ellipse Rotation Angle

Φ

-32.35

The color ranks have chromaticity ranges within 7-step MacAdam ellipse.

Rank

sm5070a

Rank

sm5070b

Rank

sm5070c

Rank

sm5070d

Rank

sm5070e

Rank

sm5070f

Center Point

x

0.3447

y

0.3553

Minor Axis

a

0.008295

Major Axis

b

0.019642

Ellipse Rotation Angle

Φ

-31.78

Rank

sm5770a

Rank

sm5770b

Rank

sm5770c

Rank

sm5770d

Rank

sm5770e

Rank

sm5770f

Center Point

x

0.3287

y

0.3417

Minor Axis

a

0.007203

Major Axis

b

0.018221

Ellipse Rotation Angle

Φ

-31.56

Rank

sm6570a

Rank

sm6570b

Rank

sm6570c

Rank

sm6570d

Rank

sm6570e

Rank

sm6570f

Center Point

x

0.3123

y

0.3282

Minor Axis

a

0.006321

Major Axis

b

0.015309

Ellipse Rotation Angle

Φ

-32.35

* Forward Voltage Tolerance: ±0.05V

* Luminous Flux Tolerance: ±7%

* Chromaticity Coordinate Tolerance: ±0.005

* 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:

60

°

Φ

a

b

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.