PRODUCT INFORMATION
840
nm
1A288
High-Performance LED
Avionics, Military Datacom
This high speed device is optimized
at 810 nm wavelength which is of
particular interest for use in radia-
tion-hardened fiber. It operates in a
wide temperature range and delivers
very high power to 200 µm core fiber,
making it ideal in avionics and mili-
tary datacom applications.
Optical and Electrical Characteristics
PARAMETER
SYMBOL
MIN.
TYP
.
MAX.
UNIT
(25°C Case Temperature)
TEST CONDITION
Fiber-Coupled Power
(Fig.1, 2,& 3) (Table 1)
P
fiber
t
r,tf
f
c
p
700
850
3.5
100
5
W
ns
MHz
880
nm
nm
2.4
20
V
A
pF
I
F
=100 mA
(Note 1)
Fiber:
100/140
m
Rise and Fall Time
(10-90%)
I
F
=100 mA
(no bias)
Graded
Index
Bandwidth
(3 dBel )
I
F
=100 mA
I
F
=100 mA
I
F
=100 mA
I
F
=100 mA
V
R
=1V
NA=0.29
Peak Wavelength
Spectral Width
(FWHM)
Forward Voltage
(Fig.5)
Reverse Current
Capacitance
800
840
50
V
F
I
R
C
2.0
250
V
R
= 0V, f=1 MHz
Note 1:
Measured at the exit of 100 meters of fiber.
Absolute Maximum Ratings
PARAMETER
Ø4.7
Ø1.5
0.6
SYMBOL
LIMIT
Storage Temperature
Operating Temperature
(derating: Fig.4)
Electrical Power Dissipation
(derating: Fig.4)
14
T
stg
T
op
P
tot
I
F
I
FRM
V
R
T
sld
-55 to +125 C
-55 to +125 C
250 mW
110 mA
180 mA
1.5V
260 C
3.7
Continuous Forward Current
(f
Peak Forward Current
(duty cycle
10 kHz)
50%, f 1 MHz)
0.4
CASE
Reverse Voltage
All dimensions in mm
ANODE
CATHODE
Soldering Temperature
(2mm from the case for 10sec)
2.5
5.4
BOTTOM VIEW
Thermal Characteristics
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
The anode is in electrical contact with the case.
TO-46 Package With Lens
Thermal Resistance - Infinite Heat Sink
Thermal Resistance - No Heat Sink
R
thjc
-0.4
0.3
100
400
C/W
C/W
%/ C
nm/ C
R
thja
Temperature Coefficient - Optical Power
dP/dT
j
Temperature Coefficient -W
avelength
d
/dT
j
12324.11 1994-09-20
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(613) 592-6909
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(65) 293 5312
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(65) 293 8527
MITEL [ MITEL NETWORKS CORPORATION ]
