OPF340B

Product Bulletin OPF340 August 1996 Fiber Optic GaAlAs High Speed LED Types OPF340A, OPF340B, OPF340C, OPF340D 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 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. TYPICAL COUPLED POWER into OPTICAL FIBER Typical Coupled Power o IF = 100mA @ 25 C N.A. OPF340D OPF340C 0.20 0.28 0.29 0.41 7.5 µW 14 µW 38 µW 140 µW 12.5 µW 22 µW 62 µW 235 µW Description The OPF340 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 µm 62.5/125 µm 100/140 µm Refractive Index Graded Graded Graded Step OPF340B 18 µW 34 mW 95 µW 340 µW OPF340A 25 µW 45 µW 125 µW 475 µW 200/300 µm* *PCS - Plastic Clad Silica Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 8-38 (972) 323-2200 Fax (972) 323-2396 Types OPF340A, OPF340B, OPF340C, OPF340D Electrical Characteristics (TA = 25o C unless otherwise noted) SYMBOL PO VF λ 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 OPF340D OPF340C OPF340B OPF340A MIN 5.0 10.0 15.0 20.0 TYP MAX UNITS 7.5 12.5 18.0 25.0 1.8 850 35 4.5 4.5 6.0 6.0 2.0 870 µW 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 8-39