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LST3921-S4-SF Datasheet(PDF) 2 Page - Agilent(Hewlett-Packard) |
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LST3921-S4-SF Datasheet(HTML) 2 Page - Agilent(Hewlett-Packard) |
2 / 6 page 521 Limits Parameter Symbol Test Condition Min. Max. Units Laser Forward Current If DC 120 mA Laser Reverse Voltage Vlr DC 2 V Photodiode Reverse Voltage Vr DC 20 V Photodiode Forward Current Ipf DC 1 mA Operating Temperature Tc Temperature measured at case –40 +85 °C Storage Temperature Ts –40 +85 °C Relative Humidity RH noncondensing %RH Fiber Pull Strength Three times; 10 sec. 10 N Mechanical Shock MIL-STD-883D, Method 2002, 500 G Condition A Vibration MIL-STD-883D, Method 2007, 20 G Condition A Absolute Maximum Ratings Absolute limiting (maximum) ratings mean that no catastrophic damage will occur if the product is subjected to these ratings for short periods, provided that each limiting parameter is in isolation and all other parameters have values within the performance specification. It should not be assumed that limiting values of more than one parameter can be applied to the product at the same time. Performance Specifications LST252X LST282X LST292X LST3521 LST3821 LST3921 Parameter Symbol Test Condition Min. Max. Min. Max. Min. Max. Units LASER CW, Tc = –40 °C to +85 °C, Po as noted below unless otherwise stated Rated Optical Power Po Tc = ranges specified 0.2 1.0 1.6 mW above, CW Threshold Current Ith Tc = +25 °C 3.5 10 3.5 10 3.5 10 mA Threshold Current Ith 1.5 30 1.5 30 1 30 mA Coupled Power in Pth If = Ith – 2 mA 10 10 10 µW “Off” State Slope Efficiency η Tc = +25 °C 10 16 508080 128 µW/mA Drive Current above Id Tc = +25 °C 12.5 20 12.5 20 12.5 20 mW Ith, for Im = Im (Po, +25 °C) Tc = –40 °C to +85°C 10 33.3 10 33.3 10 33.3 mA Forward Voltage Vf 1.6 1.6 1.6 V Center Wavelength λ Tc = +25 °C 1286 1336 1286 1336 1286 1336 nm Tc = –40 °C to +85°C 1260 1360 1260 1360 1260 1360 nm Wavelength/ ∆λ/∆T 0.4 0.4 0.4 nm/ °C Temperature Coefficient Spectral Width σ One sigma, RMS 2.5 2.5 2.5 nm Rise and Fall Time τ 10-90%, Ith to Po 0.5 0.5 0.5 ns |
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