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