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| Product Bulletin OPF345 August 1996 Fiber Optic GaAlAs High Speed LED Types OPF345A, OPF345B, OPF345C, OPF345D Features *High radiant output for fiber optic applications *High speed *Electrically isolated from case 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 +150o C Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +125o 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. TYPICAL COUPLED POWER into OPTICAL FIBER Typical Coupled Power o IF = 100 mA @ 25 C N.A. OPF345D OPF345C 0.20 0.28 0.29 0.41 7.5 W 14 W 38 W 140 W 12.5 W 22 W 62 W 235 W Description The OPF345 series LED provides fiber optic users with high coupled power and wide bandwidth in an easily mounted package. The LED' are designed to interface with s multimode optical fibers from 50/125 to 200/300 microns. Fiber 50/125 m 62.5/125 m 100/140 m Refractive Index Graded Graded Graded Step OPF345B 18 W 34 W 95 W 340 W OPF345A 25 W 45 W 125 W 475 W 200/300 m* *PCS - Plastic Clad Silica Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 8-44 (972) 323-2200 Fax (972) 323-239 Types OPF345A, OPF345B, OPF345C, OPF345D Electrical Characteristics (TA = 25o 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 830 PARAMETER Radiant Power Output OPF345D OPF345C OPF345B OPF345A MIN 5.0 10.0 15.0 20.0 TYP MAX UNITS 7.5 12.5 18.0 25.0 1.8 850 35 3.5 3.5 4.5 4.5 2.0 870 W V nm nm ns ns TEST CONDITIONS IF = 100mA(2) IF = 100mA IF = 50mA IF = 50mA IF = 100mA, 10%-90%(5) IF = 100mA, 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 (214)323-2200 Fax (214)323-2396 8-45 |
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