3mm Discrete LED
High Efficiency
Diffused
4.70
±.20
[.185
±.008]
.79
±.20
[.031
±.008]
3.09
±.20
[.122
±.008]
1.0
[.040]
6.10
±.38
[.240
±.015]
1.30
±.25
[.051
±.010]
24.00
±.25
[.945
±.010]
.50
[.020]
NOM
3.30
[.130]
MAX
521-94xx
TYPE
521-9408
521-9427
521-9428
2.49
±.25
[.098
±.010]
.50
[.020]
NOM
COLOR
Green
Red
Yellow
CATHODE (–)
Dimensions in mm [inches]
MOUNTING CLIP: 515-0006
located on page 4-65
Green
Red
Yellow
ABSOLUTE MAXIMUM RATINGS
(T
A
=25°C)
Power Dissipation (mW)
Forward Current (mA)
Derating (mA/°C)
Peak Current (mA)
Operating Temperature (°C)
Storage Temperature (°C)
Soldering Temperature
Solder Adherence per MIL-STD-202E, Method 208C
From 50°C
-9408
75
25
.5
60
-25/+85
-30/+100
-9427
60
20
.5
60
-25/+85
-30/+100
-9428
60
20
.5
60
-25/+85
-30/+100
260°C, 5 seconds, 1.6 mm from case
Green
Red
Yellow
OPERATING CHARACTERISTICS
(T
A
=25°C)
Luminous Intensity (mcd)
IF=10mA
Peak Wavelength (nm)
λ
Peak
Viewing Angle (2
Θ
½
)
Forward Voltage (V)
IF=10mA
Reverse Voltage (V), IR=10µA
Min.
Typical
Typical
Typical
Typical
Max.
Min.
-9408
5.6
16
563
45°
2.1
3
3
-9427
3.6
10
650
45°
2
3
3
-9428
2.2
6.3
585
45°
2.1
3
3
Θ
is the off axis angle at which the luminous intensity is half the axial luminous intensity
4-64
Dialight Corporation • 1501 Route 34 South • Farmingdale, NJ 07727 • TEL: (732) 919-3119 • FAX: (732) 751-5778 •www.dialight.com
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