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Electrical / Optical Characteristics at Ta=25℃

℃

℃

℃

Parameter

Symbol

Part No.

LTST-

Min.

Typ.

Max.

Unit

Test Condition

Luminous Intensity

IV

T680KRKT

71.0

224.0

mcd

IF = 20mA

Note 1

Viewing Angle

2

T680KRKT

120

deg

Note 2 (Fig.5)

Peak Emission Wavelength

λP

T680KRKT

639

nm

Measurement

@Peak (Fig.1)

Dominant Wavelength

λd

T680KRKT

631

nm

Note 3

Spectral Line Half-Width

∆λ

T680KRKT

20

nm

Forward Voltage

VF

T680KRKT

2.0

2.4

V

IF = 20mA

Reverse Current

IR

T680KRKT

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.θ1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity.

3. The dominant wavelength, λd is derived from the CIE chromaticity diagram and represents the single

wavelength which defines the color of the device.

4. Forward Voltage Tolerance is +/- 0.1 volt.

Part No. : LTST-T680KRKT

Page :

3

of

11

BNS-OD-C131/A4