3mm Discrete LED
Bi-Color
Non-Tinted, Diffused
1.02
[.040]
25.40
[1.00]
MIN
RED CATHODE 521-9768
YELLOW CATHODE 521-9478
GREEN CATHODE 521-9628
3.20
[.126]
MAX
521-9478, -9628, -9768
PART NO.
521-9478
521-9628
2.54
[.100]
COLOR
Yellow/Green
Red/Green
Red/Yellow
3.00
[.118]
4.45
[.175]
.50
[.020]
TYP
2.54
[.100]
NOM
521-9768
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)
Pulse width = 10µs
-9478
60/100
20/30
.25
1
/.40
1
80/120
-55/+100
-55/+100
-9628
140/100
40/30
.5/.4
200/120
-55/+100
-55/+100
-9768
100/60
30/20
.4
1
/.25
1
120/80
-55/+100
-55/+100
Operating Temperature (°C)
Storage Temperature (°C)
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
Peak Wavelength (nm)
λ
Peak
Viewing Angle (2
Θ
�½
)
Forward Voltage (V)
IF=20mA
Reverse Voltage (V)
IR=100ua
Typical
Typical
Typical
Max.
Min.
-9478
2.5/2.5
4.3/6.3
585/565
80°
2.1/2.1
2.8/2.8
5
-9628
3.7*/1.1*
12.6*/3.7*
660/565
200°
1.8/2.1
2.4/2.8
5
-9768
1.7*/1.7*
5.6*/5.6*
630/585
80°
2/2.1
2.8/2.8
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
DIALIGHT [ Dialight Corporation ]
