BL-BYG274 datasheet(2/2 Pages) BRIGHT

Part #	BL-BYG274

Description	LED GaAsP/GaP and GaP/GaP Yellow 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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BL-BYG274

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

Yellow

Green

-

2.1

2.2

2.6

V

Luminous Intensity

Iv

IF=20mA

Yellow

Green

-

45.

50

-

mcd

Peak Wave Length

λ

p

IF=20mA

Yellow

Green

-

585

568

-

nm

Dominant Wave Length

λ

d

IF=20mA

Yellow

Green

582

560

-

595

576

nm

Spectral Line Half-width

∆λ

IF=20mA

Yellow

Green

-

35

30

-

nm

Viewing Angle

2θ1/2

IF=20mA

Yellow

Green

-

50

-

deg

● Typical Electro-Optical Characteristics Curves

Fig.3 Forward current vs. Forward voltage

Fig.4 Relative luminous intensity

(Y)

1.5

5

0

0.5

1.0

Forward current (mA)

20

10

30

40

50

Fig.5 Relative luminous intensity

2.0

0

20

10

30

40

50

vs. Forward current

2

Forward voltage(V)

13

(G)

5

4

(Y)

(G)

0.7

0.8

0.9

1.0

0.5

0.3

0.1

0.2

70

80

90

0.4

0.6

60

50

40

Ambient temperature Ta( )

℃

vs. Ambient temperature

0.5

Fig.6 Radiation diagram

-40

0

010

-20

20

0

2.0

1.0

1.5

2.5

3.0

30

20

60

40

Fig.1 Relative intensity vs. Wavelength

500

0

0.5

1.0

Wavelength λ (nm)

570

640

(Y)

(G)

Ambient temperature Ta( )

℃

vs. Ambient temperature

Fig.2 Forward current derating curve

0

20

10

30

20

40

60

40

50

60

100

80

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