OPTEK OPF370C Fi ber op tic gaa las led Datasheet

Product Bulletin OPF370
January 1998
Fiber Optic GaAlAs LED
Types OPF370A, OPF370B, OPF370C, OPF370D
Features
Absolute Maximum Ratings (TA = 25o C unless otherwise noted)
• Electrically isolated plastic cap
Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 V
Continuous Forward Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA(4)
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55o C to +115o C
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +100o C
Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 sec. with soldering
iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240o C(1)
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.
Description
The OPF370 series LED provides fiber
optic users with high coupled power and
wide bandwidth in a low cost package.
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 25o 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 25o C ambient.
The LED’s are designed to interface with
multimode optical fibers from 50/125 to
200/300 microns.
TYPICAL COUPLED POWER into OPTICAL FIBER
Fiber
Refractive
Index
50/125 µm
Graded
Typical Coupled Power
o
IF = 100 mA @ 25 C
N.A.
OPF370D OPF370C
OPF370B
OPF370A
0.20
7.5 µW
12.5 µW
19 µW
29 µW
27 µW
35 µW
51 µW
89 µW
62.5/125 µm
Graded
0.28
100/140 µm
Graded
0.29
60 µW
87 µW
129 µW
200 µW
200/300 µm*
Step
0.41
320 µW
463 µW
606 µW
750 µW
*PCS - Plastic Clad Silica
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006
8-50
(972) 323-2200
Fax (972) 323-2396
Types OPF370A, OPF370B,
OPF370C, OPF370D
o
Electrical Characteristics (TA = 25 C unless otherwise noted)
SYMBOL
PARAMETER
Radiant Power Output
PO
DOT
OPF370D
OPF370C
OPF370B
OPF370A
(No Dot)
(Blue)
(Yellow)
(Red)
MIN TYP MAX UNITS
TEST CONDITIONS
5.0
10.0
15.0
25.0
7.5
12.5
19.0
29.0
1.8
2.0
V
IF = 100 mA
830
850
870
nm
IF = 50 mA
nm
IF = 50 mA
µW
IF = 100 mA(2)
VF
Forward Voltage
λp
Peak Output Wavelength
B
Spectral Bandwidth Between Half Power Points
35
tr
Output Rise Time
6.0
8.0
ns
IF = 100 mA, 10%-90%(5)
tf
Output Fall Time
6.0
10.0
ns
IF = 100 mA, 90%-10%(5)
Typical Performance Curves
Relative Coupled Power vs.
Forward Current
Temperatureso are
stepped in 25 C
increments.
Forward Voltage vs.
Forward Current
-50o C
-50o C
100o C
100o C
Temperatureso are
stepped in 25 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
8-51
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