LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LA251B/YDBK-4-PF
Page 2/6
Absolute Maximum Ratings at Ta=25 ℃
Absolute Maximum Ratings
Symbol
Parameter
UNIT
Y
DBK
30
20
80
60
10
---
IF
IFP
Forward Current
mA
mA
Peak Forward Current
Duty 1/10@10KHz
100
120
50
mW
μA
Power Dissipation
PD
Ir
Reverse Current @5V
Electrostatic Discharge( * )
Operating Temperature
Storage Temperature
ESD
Topr
Tstg
150
V
-20 ~ +80
℃
℃
-30 ~ +100
Static Electricity or power surge will damage the LED. Use of a conductive wrist band or anti-electrosatic
*
glove is recommended when handing these LED. All devices, equipment and machinery must be properly
grounded.
Typical Electrical & Optical Characteristics (Ta=25 ℃)
Peak Dominant
Forward
voltage
@20mA(V)
Spectral
halfwidth
△λnm
Luminous
intensity
@20mA(mcd)
Viewing
angle
2θ 1/2
(deg)
wave
wave
COLOR
length length
λPnm λDnm
MATERIAL
PART NO
Typ.
Typ.
Lens
Emitted
Yellow
Min.
Max. Min.
3.0
1800 2700
35
30
5.0
40
40
585
----
----
1.7 ---- 2.6
4.0
GaAsP/GaP
InGaN/GaN
LA251B/YDBK-4-PF
Water Clear
470
Blue
---- 3.5
Note : 1.The forward voltage data did not including ±0.1V testing tolerance.
2. The luminous intensity data did not including ±15% testing tolerance.
LIGITEK [ LIGITEK ELECTRONICS CO., LTD. ]
