KLD-2001-000 1
SRM2331
Dual Chip LED Lamp
Features
• Compact type
• Radiation size 1.3mm × 2.9mm
• Radiation color (Red, Green)
• Surface mount lead configuration
Outline Dimensions unit : mm
0.5
1.4±
0.2
Min 0.2
1
2
1
2.5±
0.2
1.3±
0.2
2.9±
0.2 1.9±
0.2 0.4±0.1
3
2
3
R=0.45
S
Se
em
mi
ic
co
on
nd
du
uc
ct
to
or
r
PIN Connections
1.Anode (Green)
2.Anode (Red)
3.Cathode
KLD-2001-000 2
SRM2331
Absolute maximum ratings
Characteristic Symbol Ratings Unit
Power Dissipation PD 55 mW
Forward Current IF 30 mA
*1Peak Forward Current IFP 50 mA
Reverse Voltage VR 4 V
Operating Temperature Topr -25～85 ℃
Storage Temperature Tstg -30～100 ℃
*2Soldering Temperature Tsol 240℃ for 5 seconds
*1.Duty ratio = 1/16, Pulse width = 0.1ms
*2.Recommended soldering condition ⇒ Attached
Electrical Characteristics
Characteristic Symbol Test Condition Min.
Typ.
Max.
Unit
Red - 1.8 2.5
Forward Voltage VF Y-Green
IF= 20mA - 2.1 2.8 V
Red - 30 -
Luminous Intensity IV Y-Green
IF= 20mA - 15 - mcd
Red - 660 -
Peak Wavelength λP Y-Green
IF= 20mA 570 nm
Red - 20 -
Spectrum Bandwidth Δλ
Y-Green
IF= 20mA 30 nm
Reverse Current IR VR=4V - - 10 uA
*3Half angle θ1/2 IF= 20mA - ±55 - deg
*3. θ1/2 is the off-axis angle where the luminous intensity is 1/2 the peak intensity
KLD-2001-000 3
SRM2331
Characteristic Diagrams
Fig.4 Spectrum Distribution
Fig. 3 IF – Ta
Fig. 2 IV - IF
Fig. 1 IF - VF
Forward Current IF [mA]
Ambient Temperature Ta [℃]
Relative Intensity [%]
Wavelength λ [nm]
Forward Voltage VF [V]
Forward Current IF [mA]
Forward Current IF [mA]
Luminous Intensity Iv [mcd]
Fig. 5 Radiation Diagram
Relative Luminous Intensity Iv [%]
