Product Bulletin OPF342
August 1996
Fiber Optic GaAlAs High Speed LED in ST* Receptacle
Types OPF342A, OPF342B, OPF342C, OPF342D
Features
• Component pre-mounted and ready
to use
• Pre-tested with fiber to assure
performance
• Popular ST* style receptacle
• High Speed
• Electrically isolated from case
Description
The OPF342 series LED consists of a
hermetic 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.
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.
The LED’s are designed to interface with
multimode optical fibers from 50/125 to
200/300 microns.
*ST is a registered trademark of AT&T.
TYPICAL COUPLED POWER into OPTICAL FIBER
Fiber
Refractive
Index
50/125 µm Graded
62.5/125 µm Graded
100/140 µm Graded
200/300 µm* Step
*PCS - Plastic Clad Silica
Typical Coupled Power
IF = 100 mA @ 25o C
N.A. OPF342D OPF342C OPF342B OPF342A
0.20
7.5 µW 12.5 µW 18 µW
25 µW
0.28
14 µW
22 µW
34 µW
45 µW
0.29
38 µW
62 µW
95 µW 125 µW
0.41
140 µW 235 µW 340 µW 475 µW
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006
8-42
(972) 323-2200
Fax (972) 323-2396