KSD-O8O003-001 1
SRM2331-A
Dual Chip LED
Features
• Compact type
• Radiation size 1.3mm × 2.9mm
• Radiation color (Y-Green, Red)
• Surface mount lead configuration
Outline Dimensions unit : mm
S
Se
em
mi
ic
co
on
nd
du
uc
ct
to
or
r
2.40~2.60
1.20~1.40
1.80~2.00
2.80~3.00
0.50 Max.
0.50 Max.
1.30~1.50
0.20 Min.
0.10 Max.
PIN Connections
1. Cathode (Y-Green)
2. Cathode (Red)
3. Common Anode
KSD-O8O003-001 2
SRM2331-A
Absolute Maximum Ratings (Ta=25oC)
Rating
Characteristic Symbol
Red Y-Green
Unit
Power dissipation PD 75 75 mW
Forward current IF 30 30 mA
*1Peak forward current IFP 50 50 mA
Reverse voltage VR 4 4 V
Operating temperature range Topr -25 85∼ ℃
Storage temperature range Tstg -30 100∼ ℃
*2Soldering temperature Tsol 240 for 5 seconds ℃
*1. Duty ratio = 1/16, Pulse width = 0.1ms
*2. Recommended reflow soldering temperature profile
- Preheating 150℃ to 185℃ within 120 seconds soldering 240℃ within 10 seconds
Gradual cooling (Avoid quenching)
Electrical / Optical Characteristics (Ta=25oC)
Characteristic Symbol Test Condition Min. Typ. Max. Unit
Red - 2.0 2.5
Forward voltage VF Y-Green IF= 20mA - 2.1 2.5
V
Red - 20 -
Luminous intensity IV Y-Green IF= 20mA - 15 -
mcd
Red - 660 -
Peak wavelength λP Y-Green IF= 20mA 570
nm
Red - 20 -
Spectrum bandwidth ∆λ 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
max. 10sec
Temp (℃)
Time (sec)
185
150
240
P eak Temp max. 240℃
Preheating area
150~185℃, 90±30sec
max. 3℃/sec
25
Time from 25℃ to Peak Temperature max. 6m in
Solder area
220℃, max. 60sec
max. 4℃/sec
max. -6℃/sec
240
180
150
60
0
KSD-O8O003-001 3
SRM2331-A
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 Diagr am
Relative Luminous Intensity Iv [%]
KSD-O8O003-001 4
SRM2331-A
The AUK Corp. products are intended for the use as compo nents in general electronic
equipment (Office and communication equipment, measuring equipment, home
appliance, etc.).
Please make sure that you consult with us before you use these AUK Corp. products
in equipments which require high quality and / or reliability, and in equipments which
could have major impact to the welfare of human life(atomic energy control, airplane,
spaceship, transportation, combustion control, all types of safety device, etc.).
A
UK
Corp. cannot accept liability to any damage which may occur in case these AUK Corp.
products w ere used in the mentioned equipments without prior consultation with AUK
Corp..
Specifications mentioned in this publication are subject to change without notice.
