1
SR3517-U / SR3517-U(B)
Hi
g
h Bri
g
htness LED Lamp
Features
• Red colored diffusion lens type
• φ3mm(T-1) all plastic mold type
• Ultra luminosity
Outline Dimensions unit : mm
STRAIGHT TYPE STOPPER TYPE
S
Se
em
mi
ic
co
on
nd
du
uc
ct
to
or
r
23.0MIN 23.0MIN
2.54 NOM
3.6±0.2
3.8±0.2
2
1
2.54 NOM
3.8±0.2
3.6±0.2
12
1.0MIN 1.0MIN
2.9±0.2
5.3±0.2
3.0±0.2
0.4
5.3±0.2
0.4
5.2±0.5
2.9±0.2
0.2
PIN Connections
1. Cathode
2. Anode
2
SR3517-U / SR3517-U
(
B
)
Absolute maximum ratings
Characteristic Symbol Ratings Unit
Power Dissipation PD 75 mW
Forward Current IF 30 mA
*1Peak Forward Current IFP 50 mA
Reverse Voltage VR 3 V
Operating Temperature Topr -25∼85 °C
Storage Temperature Tstg -30∼100 °C
*2Soldering Temperature Tsol 260°C for 3 seconds
*1.Duty ratio = 1/16, Pulse width = 0.1ms
*2.Keep the distance more than 2.0mm from PCB to the bottom of LED package
Electrical Characteristics
Characteristic Symbol Test Condition Min. Typ. Max. Unit
Forward Voltage VF I
F= 20mA - 1.85 2.3 V
Luminous Intensity IV IF= 20mA 230 400 780 mcd
Peak Wavelength λP IF= 20mA - 660 - nm
Spectrum Bandwidth Δλ IF= 20mA - 20 - nm
Reverse Current IR VR=4V - - 10 uA
*3Half Angle θ1/2 IF= 20mA - ±25 - deg
*3. θ1/2 is the off-axis angle where the luminous intensity is 1/2 the peak intensity
3
SR3517-U / SR3517-U
(
B
)
Characteristic Diagrams
Fig. 1 IF - VF
Fig. 2 IV - IF
Forward Current IF [mA]
Relative Intensity [%]
Forward Voltage VF [V]
Forward Current IF [mA]
Forward Current IF [mA]
Luminous Intensity Iv [mcd]
Fig. 5 Radiation Diagram
Relative Luminous Intensity [%]
Ambient Temperature Ta [℃] Wavelength λ [nm]
Fig.4 Spectrum Distribution
Fig. 3 IF – Ta
