Document Number 81243

Rev. 1.4, 09-Feb-10

www.vishay.com

3

Vishay Semiconductors

VLMW21..

Note:

Chromaticity coordinate groups are tested at a current pulse duration of 25 ms and a tolerance of ± 0.01

CHROMATICITY COORDINATED GROUPS FOR WHITE SMD LED

X

Y

X

Y

5L

0.291

0.268

7L

0.330

0.330

0.285

0.279

0.330

0.347

0.307

0.312

0.347

0.371

0.310

0.297

0.345

0.352

5K

0.296

0.259

7K

0.330

0.310

0.291

0.268

0.330

0.330

0.310

0.297

0.338

0.342

0.313

0.284

0.352

0.344

6L

0.310

0.297

8L

0.345

0.352

0.307

0.312

0.347

0.371

0.330

0.347

0.367

0.401

0.330

0.330

0.364

0.380

6K

0.313

0.284

8K

0.352

0.344

0.310

0.297

0.338

0.342

0.330

0.330

0.364

0.380

0.330

0.310

0.360

0.357

Figure 1. Forward Current vs. Ambient Temperature

0

5

10

15

20

25

19398_1

020

40

60

80

100

Figure 2. Relative Luminous Intensity vs. Forward Current

0.01

0.1

1

10

1

10

100

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