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| Product Bulletin OPF372 August 1996 Fiber Optic GaAlAs LED in ST* Receptacle Types OPF372A, OPF372B, OPF372C, OPF372D Features *Component pre-mounted and ready to use 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 +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) 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. *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. The LED' are designed to interface with s 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 m 62.5/125 m 100/140 m Refractive Index Graded Graded Graded Typical Coupled Power o IF = 100 mA @ 25 C N.A. OPF372D OPF372C 0.20 0.28 0.29 0.41 7.5 W 27 W 60 W 320 W 12.5 W 35 W 87 W 463 W OPF372B 19 W 51 W 129 W 606 W OPF372A 29 W 89 W 200 W 750 W Step 200/300 m* *PCS - Plastic Clad Silica Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 8-54 (972) 323-2200 Fax (972) 323-2396 Electrical Characteristics (TA = 25 C unless otherwise noted) SYMBOL PO VF p B tr tf Forward Voltage Peak Output Wavelength Spectral Band Width Between Half Power Points Output Rise Time Output Fall Time Types OPF372A, OPF372B, OPF372C, OPF372D o PARAMETER Radiant Power Output OPF372D OPF372C OPF372B OPF372A MIN TYP MAX UNITS 5.0 10.0 15.0 25.0 830 7.5 12.5 19.0 29.0 1.8 850 35 6.0 6.0 8.0 10.0 2.0 870 W 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 (214)323-2200 Fax (214)323-2396 8-55 |
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