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Product Bulletin OPF370 January 1998
Fiber Optic GaAlAs LED
Types OPF370A, OPF370B, OPF370C, OPF370D
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 (TA = 25o C unless otherwise noted)
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)
Notes: (1) RMA flux is recommended. Duration can be extended to 10 sec. max when flow soldering. (2) Graded index fiber, 50 m core, N.A. = 0.20. (3) To convert radiant power output to dBm, use the following expression: dBm = 10 log (W/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.
Description
The OPF370 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
Fiber 50/125 m 62.5/125 m 100/140 m 200/300 m*
Refractive Index Graded Graded Graded Step
Typical Coupled Power o IF = 100 mA @ 25 C N.A. OPF370D OPF370C 0.20 0.28 0.29 0.41 7.5 W 27 W 60 W 320 W 12.5 W 35 W 87 W 463 W
OPF370B 19 W 51 W 129 W 606 W
OPF370A 29 W 89 W 200 W 750 W
*PCS - Plastic Clad Silica
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006 8-50
(972) 323-2200
Fax (972) 323-2396
Electrical Characteristics (TA = 25 C unless otherwise noted) SYMBOL
PO VF p B tr tf Forward Voltage Peak Output Wavelength Spectral Bandwidth Between Half Power Points Output Rise Time Output Fall Time
Types OPF370A, OPF370B, OPF370C, OPF370D o
PARAMETER
Radiant Power Output OPF370D OPF370C OPF370B OPF370A
DOT
(No Dot) (Blue) (Yellow) (Red)
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 W V nm nm ns ns
TEST CONDITIONS
IF = 100 mA(2) IF = 100 mA IF = 50 mA IF = 50 mA IF = 100 mA, 10%-90%(5) IF = 100 mA, 90%-10%(5)
Typical Performance Curves
Relative Coupled Power vs. Forward Current Forward Voltage vs. Forward Current
Temperatures are stepped in 25o C increments.
-50o C -50o C
100o C
100o C
Temperatures are stepped in 25o 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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