Product Bulletin OPF395A
August 1996
Fiber Optic GaAlAs High Speed LED
Types OPF395A, OPF395B, OPF395C, OPF395D
Features
•
Electrically isolated plastic cap
package
•
High radiant output for fiber optic
applications
•
High speed
•
Designed to self align in the 0.228
inch diameter bore of standard fiber
optic receptacles. Press fit simplifies
component installation.
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 +115
o
C
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to +100
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’ are subject to 100% burn-in testing. Test conditions are 96 hours at 100 mA
s
continuous current in 25
o
C ambient.
Description
The OPF395 series LED provides fiber
optic users with high coupled power and
wide bandwidth in a low cost package.
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.
OPF395D OPF395C
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
OPF395B
18
µW
45
µW
115
µW
545
µW
OPF395A
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
8-62
(972) 323-2200
Fax (972) 323-239
Types OPF395A, OPF395B, OPF395C, OPF395D
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
OPF395D
OPF395C
OPF395B
OPF395A
DOT
(Silver)
(Black)
(Green)
(Orange)
MIN
5.0
10.0
15.0
20.0
TYP MAX UNITS TEST CONDITIONS
7.5
12.5
18.0
25.0
1.8
850
35
3.5
3.5
4.5
4.5
2.0
870
µW
V
nm
nm
ns
ns
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
8-63
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