Product Bulletin OPF341
August 1996
Fiber Optic
GaAlAs High Speed
LED
in SMA Receptacle
Types OPF341A, OPF341B, OPF341C, OPF341D
Features
•
Component pre-mounted and ready
to use
•
Pre-tested with fiber to assure
performance
•
Popular SMA style receptacle
•
High Speed
•
Electrically isolated from case
Absolute Maximum Ratings
(T
A
= 25
o
C unless otherwise noted)
Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 V
Continuous Forward Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA
(4)
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +150
o
C
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to +125
o
C
Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 sec. with soldering
iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
o
C
(1)
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 sec. max when flow soldering.
(2) Graded index fiber, 50
µm
core, N.A. = 0.20.
(3) To convert radiant power output to dBm, use the following expression dBm = 10 log
(µW/1000).
(4) Derate linearly @ 1.0 mA/
o
C above 25
o
C.
(5) Prebias @ 5 mA current.
LED Burn-in
All LED's are subject to 100% burn-in testing. Test conditions are 96 hours at 100 mA
continuous current in 25
o
C ambient.
Description
The OPF341 series LED consists of a
hermetic LED, pre-mounted and aligned
in an SMA receptacle. This configuration
is designed for PC board or panel
mounting. Includes lock washer and jam
nut, two 2-56 screws, and a dust cap.
The LED’ are designed to interface with
s
multimode optical fibers from 50/125 to
200/300 microns.
TYPICAL COUPLED POWER into OPTICAL FIBER
Typical Coupled Power
o
I
F
= 100 mA @ 25 C
N.A.
OPF341D OPF341C
0.20
0.28
0.29
0.41
7.5
µW
14
µW
38
µW
140
µW
12.5
µW
22
µW
62
µW
235
µW
Fiber
50/125
µm
62.5/125
µm
100/140
µm
Refractive
Index
Graded
Graded
Graded
OPF341B
18
µW
34
µW
95
µW
340
µW
OPF341A
25
µW
45
µW
125
µW
475
µW
Step
200/300
µm*
*PCS - Plastic Clad Silica
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006
8-40
(972) 323-2200
Fax (972) 323-2396
Types OPF341A, OPF341B, OPF341C, OPF341D
Electrical Characteristics
(T
A
= 25
o
C unless otherwise noted)
SYMBOL
P
O
V
F
λ
p
B
t
r
t
f
Forward Voltage
Peak Output Wavelength
Spectral Bandwidth Between Half Power Points
Output Rise Time
Output Fall Time
830
PARAMETER
Radiant Power Output
OPF341D
OPF341C
OPF341B
OPF341A
MIN
5.0
10.0
15.0
20.0
TYP MAX UNITS
7.5
12.5
18.0
25.0
1.8
850
35
4.5
4.5
6.0
6.0
2.0
870
µW
V
nm
nm
ns
ns
TEST CONDITIONS
I
F
= 100 mA
(2)
I
F
= 100 mA
I
F
= 50 mA
I
F
= 50 mA
I
F
= 100 mA, 10%-90%
(5)
I
F
= 100 mA, 90%-10%
(5)
Typical Performance Curves
Relative Coupled Power vs.
Forward Current
Forward Voltage vs.
Forward Current
Temperatures are
stepped in 25
o
C
increments.
-50
o
C
-50
o
C
100
o
C
100
o
C
Temperatures are
stepped in 25
o
C
increments.
Forward Current - mA
Forward Current - mA
Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006
(214)323-2200
Fax (214)323-2396
8-41
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