Datasheet

4-62
Dialight Corporation • 1501 Route 34 South • Farmingdale, NJ 07727 • TEL: [phone] • FAX: [phone] •www.dialight.com
3mm Discrete LED
Bi-Color
Non-Tinted, Diffused
521-9478, -9628, -9768
3.20
[.126]
MAX
4.45
[.175]
5.20 ±.5
[.205 ±.02]
1.02
[.040]
3.00
[.118]
25.40
[1.00]
MIN
RED CATHODE 521-9768
YELLOW CATHODE 521-9478
GREEN CATHODE 521-9628
.50
[.020]
TYP
2.54
[.100]
NOM
2.54
[.100]
NOTE:
MENISCUS MAY EXTEND 1.0MM [.040]
DOWN FROM HOUSING
PART NO. COLOR
521-9478 Yellow/Green
521-9628 Red/Green
521-9768 Red/Yellow
Yellow/Green Red/Green Red/Yellow
ABSOLUTE MAXIMUM RATINGS (T
A
=25°C)
-9478 -9628 -9768
Power Dissipation (mW) 60/100 140/100 100/60
Forward Current (mA) 20/30 40/30 30/20
Derating (mA/°C)
From 25°C
1
From 50°C .25
1
/.40
1
.5/.4 .4
1
/.25
1
Peak Current (mA) 80/120 200/120 120/80
Pulse width = 10µs
Operating Temperature (°C) -55/+100 -55/+100 -55/+100
Storage Temperature (°C) -55/+100 -55/+100 -55/+100
Soldering Temperature 260°C, 5 seconds, 1.66 mm from case
Yellow/Green Red/Green Red/Yellow
OPERATING CHARACTERISTICS (T
A
=25°C)
-9478 -9628 -9768
Luminous Intensity (mcd) Min. 2.5/2.5 3.7*/1.1* 1.7*/1.7*
I
F
=10mA * I
F
=20mA Typical 4.3/6.3 12.6*/3.7* 5.6*/5.6*
Peak Wavelength (nm) Typical 585/565 660/565 630/585
λ Peak
Viewing Angle (2
Θ
½
) Typical 80° 200° 80°
Forward Voltage (V) Typical 2.1/2.1 1.8/2.1 2/2.1
I
F
=20mA Max. 2.8/2.8 2.4/2.8 2.8/2.8
Reverse Voltage (V) I
R
=100ua Min. 5 5 5
Dimensions in mm [inches]
Θ

is the off axis angle at which the luminous intensity is half the axial luminous intensity
Solder Adherence per MIL-STD-202E, Method 208C
MOUNTING CLIP:
515-0006
located on page 4-65