Product Bulletin OPF372 August 1996 Fiber Optic GaAlAs LED in ST* Receptacle Types OPF372A, OPF372B, OPF372C, OPF372D Features Absolute Maximum Ratings (TA = 25o C unless otherwise noted) • Component pre-mounted and ready Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 V Continuous Forward Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA(4) Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55o C to +100o C Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +85o C Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 sec. with soldering iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240o C(1) to use • Pre-tested with fiber to assure performance • Popular ST* style receptacle Description The OPF372 series LED consists of a low cost plastic cap LED, pre-mounted and aligned in an ST* receptacle. This configuration is designed for PC board or panel mounting. Includes lock washer and jam nut, two 2-56 screws, and a dust cap. 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 *ST is a registered trademark of AT&T. Fiber 50/125 µm Refractive Index Graded 0.20 7.5 µW 12.5 µW 19 µW 29 µW 62.5/125 µm Graded 0.28 27 µW 35 µW 51 µW 89 µW 100/140 µm Graded 0.29 60 µW 87 µW 129 µW 200 µW 0.41 320 µW 463 µW 606 µW 750 µW Step 200/300 µm* *PCS - Plastic Clad Silica Optek Technology, Inc. Typical Coupled Power o IF = 100 mA @ 25 C N.A. OPF372D OPF372C 1215 W. Crosby Road Carrollton, Texas 75006 8-54 (972) 323-2200 OPF372B OPF372A Fax (972) 323-2396 Types OPF372A, OPF372B, OPF372C, OPF372D o Electrical Characteristics (TA = 25 C unless otherwise noted) SYMBOL PARAMETER MIN TYP MAX UNITS Radiant Power Output OPF372D OPF372C OPF372B OPF372A PO 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 Band Width 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 (214)323-2200 Fax (214)323-2396 8-55