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3mm Discrete LED
Bi-Color
Non-Tinted, Diffused
521-9478, -9628, -9768
25.40
PART NO.
COLOR
1.02
[.040]
[1.00]
MIN
RED CATHODE 521-9768
3.20
[.126]
521-9478
Yellow/Green
3.00
[.118]
4.45
[.175]
YELLOW CATHODE 521-9478
GREEN CATHODE 521-9628
.50
[.020]
2.54
[.100]
NOM
MAX
2.54
[.100]
521-9628
521-9768
Red/Green
Red/Yellow
TYP
5.20 ± .5
[.205 ± .02]
NOTE:
MENISCUS MAY EXTEND 1.0MM [.040]
DOWN FROM HOUSING
Dimensions in mm [inches]
MOUNTING CLIP: 515-0006
located on page 4-65
Yellow/Green
Red/Green
Red/Yellow
ABSOLUTE MAXIMUM RATINGS (TA=25°C)
Power Dissipation (mW)
Forward Current (mA)
Derating (mA/°C) From 25°C 1 From 50°C
Peak Current (mA)
-9478
60/100
20/30
.25 1 /.40 1
80/120
-9628
140/100
40/30
.5/.4
200/120
-9768
100/60
30/20
.4 1 /.25 1
120/80
Pulse width = 10μs
Operating Temperature (°C)
Storage Temperature (°C)
-55/+100
-55/+100
-55/+100
-55/+100
-55/+100
-55/+100
Soldering Temperature
Solder Adherence per MIL-STD-202E, Method 208C
260°C, 5 seconds, 1.66 mm from case
Yellow/Green
Red/Green
Red/Yellow
OPERATING CHARACTERISTICS (TA=25°C)
Luminous Intensity (mcd) Min.
IF=10mA * IF=20mA Typical
-9478
2.5/2.5
4.3/6.3
-9628
3.7*/1.1*
12.6*/3.7*
-9768
1.7*/1.7*
5.6*/5.6*
Peak Wavelength (nm)
Typical
585/565
660/565
630/585
λ Peak
Viewing Angle (2 Θ ? )
Forward Voltage (V)
IF=20mA
Typical
Typical
Max.
80°
2.1/2.1
2.8/2.8
200°
1.8/2.1
2.4/2.8
80°
2/2.1
2.8/2.8
Reverse Voltage (V)
IR=100ua
Min.
5
5
5
Θ ? is the off axis angle at which the luminous intensity is half the axial luminous intensity
4-62 Dialight Corporation ? 1501 Route 34 South ? Farmingdale, NJ 07727 ? TEL: (732) 919-3119 ? FAX: (732) 751-5778 ?www.dialight.com
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