PRODUCT INFORMATION
860
nm
1A255
High-Performance LED
Baseband Video
The low thermal droop of this device
allows baseband video transmission
with minimum distortion. The dou-
ble-lens optical system provides for
optimum coupling of power into the
fiber.
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
l
Pl
p
80
120
6
55
2
8
W
ns
MHz
%
880
nm
nm
2.2
20
V
A
pF
I
F
=80 mA
(Note 1)
Fiber:
62.5/125
m
Graded
Rise and Fall Time
(10-90%)
I
F
=80 mA
(no bias)
Bandwidth
(3dBel)
I
F
=80 mA
I
F
=80 mA
I
F
=80 mA
I
F
=80 mA
I
F
=80 mA
V
R
=1V
Index
NA=0.275
Thermal Droop
(nonlinearity)
(Note 2)
Peak Wavelength
Spectral Width
(FWHM)
Forward Voltage
(Fig.5)
Reverse Current
Capacitance
840
860
50
V
F
I
R
C
1.8
250
V
R
= 0V, f=1 MHz
Note 1:
Measured at the exit of 100 meters of fiber.
Note 2:
Transient decline in optical power due to self-heating.
Ø4.7
Ø1.5
0.6
Absolute Maximum Ratings
PARAMETER
SYMBOL
LIMIT
3.7
Storage Temperature
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
1.5 V
260 C
Operating Temperature
(derating: Fig.4)
Electrical Power Dissipation
(derating: Fig.4)
Continuous Forward Current
(f
10 kHz)
50%, f 1 MHz)
0.4
CASE
CATHODE
ANODE
All dimensions in mm
Peak Forward Current
(duty cycle
Reverse Voltage
2.5
5.4
BOTTOM VIEW
Soldering Temperature
(2mm from the case for 10 sec)
The anode is in electrical contact with the case.
TO-46 Package With Lens
Thermal Characteristics
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Thermal Resistance - Infinite Heat Sink
Thermal Resistance - No Heat Sink
R
thjc
-0.5
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
12090.11 1994-09-20
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Tel
(46) 8 58 02 45 00
Fax
(46) 8 58 02 01 10
Tel
(44) 1291 436180
Fax
(44) 1291 436771
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Tel
1-800-96MITEL
Fax
(613) 592-6909
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Tel
(65) 293 5312
Fax
(65) 293 8527
MITEL [ MITEL NETWORKS CORPORATION ]
