Product Bulletin OPF390A August 1996 Fiber Optic GaAlAs High Speed LED Types OPF390A, OPF390B, OPF390C, OPF390D 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 OPF390 series LED provides fiber optic users with high coupled power and wide bandwidth in a low cost package. The LED’s are designed to interface with multimode optical fibers from 50/125 to 200/300 microns. 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 = 100 mA @ 25 C Fiber N.A. OPF390D OPF390C OPF390B OPF390A 50/125 µm Refractive Index Graded 0.20 7.5 µW 12.5 µW 18 µW 25 µW 62.5/125 µm Graded 0.28 27 mW 35 µW 45 µW 75 µW 100/140 µm Graded 0.29 58 µW 85 µW 115 µW 170 µW 0.41 290 µW 450 µW 545 µW 650 µW Step 200/300 µm* *PCS - Plastic Clad Silica Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 8-56 (972) 323-2200 Fax (972) 323-239 Types OPF390A, OPF390B, OPF390C, OPF390D Electrical Characteristics (TA = 25o C unless otherwise noted) SYMBOL PARAMETER Radiant Power Output PO DOT OPF390D OPF390C OPF390B OPF390A (Silver) (Black) (Green) (Orange) MIN TYP MAX UNITS 5.0 10.0 15.0 20.0 7.5 12.5 18.0 25.0 µW VF Forward Voltage λp Peak Output Wavelength B Spectral Band Width Between Half Power Points 35 tr Output Rise Time 4.5 6.0 tf Output Fall Time 4.5 6.0 830 TEST CONDITIONS IF = 100 mA(2) 1.8 2.0 V IF = 100 mA 850 870 nm IF = 50 mA nm IF = 50 mA ns IF = 100 mA, 10%-90%(5) ns IF = 100 mA, 90%-10%(5) Typical Performance Curves Relative Coupled Power vs. Forward Current Temperaturesoare stepped in 25 C increments. Forward Voltage vs. Forward Current -50o C -50o C 100o C 100o C Temperaturesoare 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 (214)323-2200 Fax (214)323-2396 8-57