LITE-ON

TECHNOLOGY

CORPORATION

Property of Lite-On Only

Electrical

Optical

Characteristics

At

Ta=25℃

Parameter

Symbol

Part No.

LTW-

Min.

Typ.

Max.

Unit

Test Condition

Luminous Intensity

IV

191TL

250.0

mcd

IF = 20mA

Note 1, 2, 5

Viewing Angle

2θ1/2

191TL

130

deg

Fig.6

x

0.31

Chromaticity Coordinates

y

191TL

0.32

IF = 20mA

Note 3, 5

Fig.1

Forward Voltage

VF

191TL

2.8

3.3

3.8

V

IF = 20mA

Reverse Current

IR

191TL

10

µA

VR = 5V

Note : 1. Luminous intensity is measured with a light sensor and filter combination that approximates the

CIE eye-response curve.

2. Iv classification code is marked on each packing bag.

3. The chromaticity coordinates (x, y) is derived from the 1931 CIE chromaticity diagram.

4. Caution in ESD:

Static Electricity and surge damages the LED. It is recommend to use a wrist band or anti-electrostatic

glove when handling the LED. All devices, equipment and machinery must be properly grounded.

5. Tester

PR704 is for the chromaticity coordinates (x, y).

EG&G is for Iv

6. The chromaticity coordinates (x, y) guarantee should be added ± 0.01 tolerance.

Part

No. : LTW-191TL

Page :

3

of

11

BNS-OD-C131/A4