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850nm, Fiber Optic LED Transmitter
Features
* * * * * * * Low Cost 850 nm LED technology High thermal stability Up to 155 Mbaud Recommended for multimode fiber applications High optical coupling to multimode fiber Low profile metal ST* style receptacle Industrial temperature range
Description
The OPF693 series fiber optic transmitters are high performance 850nm LED packaged for data communication links. Two power ranges are offered which allows the designer to select a device best suited for the application. This product's combination of features including high speed and efficient coupled power makes it an ideal transmitter for integration into all types of data communications equipment. Applications include:
Absolute Maximum Ratings (TA = 25 C unless otherwise noted)
Storage Temperature Operating Temperature Soldering Lead Temperature Continuous Forward Current Maximum Reverse Voltage
(1)
-55 C to +100 C -40 C to +85 C 260 C for 10 Seconds 100 mA 1.0 V
(2)

Industrial Ethernet Copper-to-fiber media conversion Intra-system links
Typical Coupled Power IF = 100mA, 25 C Fiber Size 50/125 m 62.5/125 m 100/140 m 200/300 m Type Graded Index Graded Index Graded Index Step Index N.A. 0.20 0.28 0.29 0.41 OPF693-1 -19dBm -15dBm -11dBm -5dBm OPF693-2 -16dBm -12dBm -8dBm -2dBm
* - ST is a registered trademark of Fitel USA Corp. Optek Technology, Inc. Carrollton, Texas 75006 (972) 323-2200 sensors@optekinc.com
September 2003 Issue 1.0 www.optekinc.com
Page 1 of 3
OPF693 Series Technical Data
Electrical/Optical Characteristics (at 25 C unless otherwise specified)
SYMBOL PT50 VF VR tr,tf PARAMETER Total Coupled Power 50/125 m Fiber Forward Voltage Reverse Voltage Wavelength Optical Bandwidth Rise and Fall Time OPF693-1 OPF693-2 MIN -19 -16 1.5 1.8 830 850 35 4.5 6.5 870 TYP MAX -14 -11 2.1 UNITS dBm dBm V V nm nm ns TEST CONDITION IF = 100 mA IF = 100 mA IF = 100 mA IR = 100 A IF = 50 mA IF = 50 mA IF = 100 mA; 10% to 90%(3)
NOTES: 1. RMA flux is recommended. Duration can be extended to 10 seconds when flow soldering. 2. 3. 4. De-rate linearly at 1.0mA / C above 25 C . No Pre-bias. All Optek fiber optic LED products are subjected to 100% burn-in as part of its quality control process. The burn-in conditions are 96 hours at 100mA drive current and 25 C ambient temperature.
Relative Coupled Power vs. Forward Current
1.4 Temperatures are Stepped in Relative Coupled Power 1.2 1.0 0.8 0.6 0.4 0.2 0 0 80C 20 C increments. 2.0
Typical Forward Voltage vs. Forward Current
1.9 Relative Coupled Power 1.8 1.7 1.6 1.5 1.4 1.3 1.2 80C Temperatures are Stepped in 20 C increments.
-40C
-40C
20
40
60
80
100
0
20
40
60
80
100
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. Carrollton, Texas 75006 (972) 323-2200 sensors@optekinc.com
September 2003 Issue 1.0 www.optekinc.com
Page 2 of 3
OPF693 Series Technical Data
0.573 [14.55] 0.075 [1.91] 0.100 Dia. Nom. 0.375 [9.53]
Case 3
1 Anode (A) 2 Cathode (K)
0.500 [12.70]
0.375-24 UNF-2A 0.400 [10.15] Min. 0.290 [7.37] Max.
0.410 [10.41]
Vcc +5V C2 + C3 A 5 1 TTL IN 2 U1 4 3 9 10 13 12 U1 7 11 U1 8 C1 R3 14 U1 6 R1 R2 K
Part C1 C2 C3 R1 R2 R3 U1
Description Capacitor Capacitor Capacitor Resistor Resistor Resistor IC, Quad NAND
Value/ Type 75 100 10 33 33 270 74ACTQ00
Symbol pF pF F
-
Tol. 20% 20% 20% 5% 5% 5% -
Refer to Application Bulletin 220 for complete details.
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. Carrollton, Texas 75006 (972) 323-2200 sensors@optekinc.com
September 2003 Issue 1.0 www.optekinc.com
Page 3 of 3

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