2. Performance Characteristics
2-1. Electro Optical Characteristics
Electro Optical Characteristics
( Tj=85C )
Luminous flux
( lm)
Thermal
Resistance
Rj-c
CRI
Efficacy
( lm/W )
Voltage
( V)
Forward
Current
( mA )
Nominal
CCT
Product code
Ra
Min.
90
R9
Min.
50
Tc=25C*
Typ.
802
j
T =85C
( C/W )
Min.
Typ.
726
757
773
782
Typ.
116
121
124
125
Min.
31.8
31.8
31.8
31.8
Typ. Max.
CLU028-1202C4-273H5K2
CLU028-1202C4-303H5K2
CLU028-1202C4-353H5K2
CLU028-1202C4-403H5K2
2700K
3000K
3500K
4000K
638
666
680
688
180
180
180
180
34.6
34.6
34.6
34.6
37.5
37.5
37.5
37.5
1.6
1.6
1.6
1.6
90
50
837
90
50
854
90
50
864
Notes :
1. Citizen Electronics maintains forward voltage +/-3%, luminous flux+/-10%,Ra and R9 +/-1.
*Values of Luminous fluxat Tc=25C are provided as reference only.
2-2. Absolute Maximum Ratings
Absolute Maximum Ratings
Parameter
Symbol
Rating
19.6
460
*1
*1
Input Power (W)
Forward Current (mA)
Reverse Current (mA)
Operating Temperature (C)
Storage Temperature (C)
Case Temperature (C)
Junction Temperature (C)
Pi
If
1
Ir
-40 ~ +100
-40 ~ +100
105
Top
Tst
Tc
Tj
*2
*3
140
*1. Input power and forward current are the values when the LED is used within the range of the derating
curve in this data sheet.
*2. Refer to 3. Outline drawing for Tc measurement point.
×
*3. D.C. Current : Tj = Tc + Rj-c
Pi
3
Ref.CE-P3534 02/16