BL-BEG274 datasheet(2/2 Pages) BRIGHT

Part #	BL-BEG274

Description	LED Hi-Eff Red and Green Low current requirement.

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Manufacturer	BRIGHT [BRIGHT LED ELECTRONICS CORP]

Direct Link	http://www.brightled.co.kr

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Ver.2.0 Page: 2 of 2

SINCE 1981

● Electrical and optical characteristics(Ta=25℃)

Parameter

Symbol

Condition

Color

Min.

Typ.

Max.

Unit

Forward Voltage

VF

IF=20mA

Hi-Eff Red

Green

-

2.0

2.2

2.6

V

Luminous Intensity

Iv

IF=20mA

Hi-Eff Red

Green

-

50

-

mcd

Peak Wave Length

λ

p

IF=20mA

Hi-Eff Red

Green

-

640

568

-

nm

Dominant Wave Length

λ

d

IF=20mA

Hi-Eff Red

Green

617

560

-

638

576

nm

Spectral Line Half-width

∆λ

IF=20mA

Hi-Eff Red

Green

-

40

30

-

nm

Viewing Angle

2θ1/2

IF=20mA

Hi-Eff Red

Green

-

50

-

deg

● Typical electro-optical characteristics curves

5

0

1.0

2.0

4.0

3.0

6.0

5.0

Forward current (mA)

10

20

30

40

50

(E)

Fig.3 Forward current vs. Forward voltage

Fig.5 Relative luminous intensity

8.0

7.0

0

10

20

30

40

50

vs. Forward current

Forward voltage(V)

12

3

(G)

45

(E)

(G)

0.7

0.8

0.9

0.3

0.5

0.1

1.0

0

80

0.4

0.2

0.6

90

70

60

50

20

10

40

30

Fig.4 Relative luminous intensity

Ambient temperature Ta( )

℃

vs. Ambient temperature

Fig.6 Radiation diagram

0

-40

0.5

-20

0

20

1.0

1.5

2.0

2.5

3.0

40

60

Fig.1 Relative intensity vs. Wavelength

500

0

0.5

1.0

Wavelength λ(nm)

580

640

720

(G)

(E)

Ambient temperature Ta( )

℃

vs. Ambient temperature

Fig.2 Forward current derating curve

40

10

0

20

30

20

40

60

50

60

100

80

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