Product Bulletin OPF391
August 1996
Fiber Optic
GaAlAs High Speed LED
in SMA Receptacle
Types OPF391A, OPF391B, OPF391C, OPF391D
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 +100
o
C
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to +85
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 OPF391 series LED consists of a
low cost plastic cap 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
mulitmode 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.
OPF391D OPF391C
0.20
0.28
0.29
0.41
7.5
µW
27
µW
58
µW
290
µW
12.5
µW
35
µW
85
µW
450
µW
Fiber
50/125
µm
62.5/125
µm
100/140
µm
Refractive
Index
Graded
Graded
Graded
OPF391B
18
µW
45
µW
115
µW
545
µW
OPF391A
25
µW
75
µW
170
µW
650
µW
Step
200/300
µm*
*PCS - Plastic Clad Silica
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006
8-58
(972) 323-2200
Fax (972) 323-239
Types OPF391A, OPF391B, OPF391C, OPF391D
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
OPF391D
OPF391C
OPF391B
OPF391A
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
8-59
Making friends through disassembly
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