MF431 Datacom, Telecom, General Purpose LED MF431 ST ST Assembly Ordering Information PART # RECEPTACLE MF431 ST ST -40°C to +85°C Applications Description • FDDI • ATM-SDH/SONET 155Mbps • Intra-Office Telecommunications • General Purpose This LED is designed for Datacom, Telecom and General Purpose Applications. It has a long wavelength LED for links up to 10 km at 125Mbps. It meets standards for FDDI (ANSI X3T9.5) and ATM155Mbps. Features The device is optimized for 62.5/125µm fiber and actively aligned in an ST® receptacle. The MF432 PIN Photodiode is recommended as Receiver for this LED. • 1320nm Surface-Emitting LED • 125MHz Bandwidth • Designed for 62.5/125µm Fiber • Aligned in ST® Receptacle • MTTF >1,000,000 hours MF431 Functional Diagram FIBER CASE ANODE DETECTOR CATHODE BOTTOM VIEW MF431 LED 13324.11 1997-04-01 10 Datacom, Telecom, General Purpose LED MF431 Absolute Maximum Ratings* Parameter Symbol Min. Max. Units Tstg -40 +85 °C Operating Temperature (Fig 4) Top -40 +85 °C Electrical Power Dissipation (Fig 4) Ptot 160 mW IF 80 mA Storage Temperature Continuous Forward Current (f≤10kHz) Peak Forward Current (duty cycle ≤50%, f≥1MHz) IFRM 130 mA Reverse Voltage VR 0.5 V Soldering Temperature (Note 1) Tsld 260 °C *Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied. Note 1: 2mm from the case for 10s. Optical & Electrical Characteristics (Case Temperature -25 to +70˚C) Parameter Symbol Min. Pfiber -19 Fiber-Coupled-Power (Fig 1, 2, 3) Rise & Fall Time (10-90%, no bias) tr tf Bandwidth (3dBel) fc Peak Wavelength λp Spectral Width (FWHM) Forward Voltage (Fig 5) Reverse Current IR Capacitance C Typ. Max. 2.0 Units Test Conditions dBm IPeak=60mA (Note 1, 2) 2.5 ns IF=60mA (Note 2, 3) MHz IF=60mA (Note 2) 1320 1355 nm IF=60mA (Note 3) ∆λ 135 170 nm IF=60mA (Note 3) VF 1.3 1.65 V IF=60mA 100 µA VR=1V pF VR=0V, f=1MHz 125 1285 200 Note 1: Average power at 10MHz/50% duty cycle. Measured at the exit of 100m of fiber. Note 2: 62.5/125µm graded index fiber (NA = 0.275). Note 3: Meets the FDDI ANSI X3T9.5 specification for FDDI. Thermal Characteristics Parameter Max. Units Thermal Resistance - Infinite Heat Sink Symbol Rthjc Min. Typ. 200 ˚C/W Thermal Resistance - On PCB Rthjb 300 ˚C/W Temperature Coefficient - Optical Power dP/dTj -0.75 %/˚C Temperature Coefficient - Wavelength ∆λ/dTj 0.45 nm/˚C 11 MF431 Datacom, Telecom, General Purpose LED % % 100 100 RELATIVE FIBER-COUPLED POWER RELATIVE FIBER-COUPLED POWER r 80 60 40 r r = opt. Øc = 62.5 µm 20 z = opt. Øc = 62.5 µm 80 z 60 40 20 z 0 0 0.5 1.0 1.5 2.0 0 3.0 mm 2.5 z - AXIAL DISPLACEMENT OF FIBER 20 40 % mW 300 MAX. ELECTRICAL POWER DISSIPATION RELATIVE FIBER-COUPLED POWER 100 µm Figure 2 100 50% DUTY CYCLE 60 40 80 r - RADIAL DISPLACEMENT OF FIBER Figure 1 80 60 DC 20 200 ON PC BOARD 100 INFINITE HEAT SINK HEAT SINKED 0 0 0 40 80 120 160 200 mA Figure 3 mA FORWARD CURRENT 100 0 1 50 100 Figure 4 200 0 0 OPERATING TEMPERATURE FORWARD CURRENT 2 3V FORWARD VOLTAGE Figure 5 12 150 °C Datacom, Telecom, General Purpose LED MF431 MF431 ST Mechanical Data 2-56 UNC - 2B 3/8"-32 UNEF max.0.5 0.4 9.5 0.006 Ø2.502 +0.01 0 5.4 SLOT SIDE MARKING SIDE 12.7 2.5 FIBER END Ø2.5 +0 -0.004 7.6 7.89 3.9 RECOMMENDED FERRULE (not included) 5.4 min.12 20.1 Note: The LED chip is isolated from the case. All dimensions in mm. Typical Drive Circuit ST Packaging Hardware 3/8 - 32 UNEF 2B THREAD MF431 ECL 9.53 VREF 12.70 1.65 I HEX-NUT -5V 10.41 14.27 0.46 WASHER 13 http://www.mitelsemi.com World Headquarters - Canada Tel: +1 (613) 592 2122 Fax: +1 (613) 592 6909 North America Tel: +1 (770) 486 0194 Fax: +1 (770) 631 8213 Asia/Pacific Tel: +65 333 6193 Fax: +65 333 6192 Europe, Middle East, and Africa (EMEA) Tel: +44 (0) 1793 518528 Fax: +44 (0) 1793 518581 Information relating to products and services furnished herein by Mitel Corporation or its subsidiaries (collectively “Mitel”) is believed to be reliable. However, Mitel assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. 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