Product Bulletin OPF371
January 1998
Fiber Optic GaAlAs LED
in SMA Receptacle
Types OPF371A, OPF371B, OPF371C, OPF371D
Features
•
Component pre-mounted and ready
to use
•
Pre-tested with fiber to assure
performance
•
Popular SMA style receptacle
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 OPF371 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
Fiber
50/125
µm
62.5/125
µm
100/140
µm
Refractive
Index
Graded
Graded
Graded
Typical Coupled Power
o
I
F
= 100 mA @ 25 C
N.A.
OPF371D OPF371C
0.20
0.28
0.29
0.41
7.5
µW
27
µW
60
µW
320
µW
12.5
µW
35
µW
87
µW
463
µW
OPF371B
19
µW
51
µW
129
µW
606
µW
OPF371A
29
µW
89
µW
200
µW
750
µW
Step
200/300
µm*
*PCS - Plastic Clad Silica
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006
8-52
(972) 323-2200
Fax (972) 323-2396
Electrical Characteristics
(T
A
= 25 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
Types OPF371A, OPF371B, OPF371C, OPF371D
o
PARAMETER
Radiant Power Output
OPF371D
OPF371C
OPF371B
OPF371A
MIN TYP MAX UNITS
5.0
10.0
15.0
25.0
830
7.5
12.5
19.0
29.0
1.8
850
35
6.0
6.0
8.0
10.0
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
(972)323-2200
Fax (972)323-2396
8-53
Talking
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