LIGHT EMITTING DIODES 1.6÷ ÷4.6 µm 4 .3 µ m Model LED43-PR 10 µW •Light Emitting Diodes LED43-PR are designed for emitting at a spectral range around 4300 nm. Heterostructures (HS) are grown on InAs substrates. The output emission can be modulated by current flowing in a forward direction. •Light Emitting Diodes LED43-PR are developed for using in optical gas sensors and medical diagnostics. They have stable output power and lifetime more then 10000 hours. •Related products: our standard LED Driver provides power supply of LED43-PR in two recommended here regimes (Quasi-CW and Pulsed). Parameters Min Typ Max Wavelength, µm 4.10 4.20 4.30 FWHM, µm 0.75 0.90 1.05 8 180 10 200 12 220 10 30 50 Recommended regimes of operation f=2 kHz Quasi-CW Optical Power, µW Quasi-CW @ 200 mA Pulsed@1A Switching Time, ns 200 mA 250 µs 250 µs 1 µs Pulse Operating Temperature Range, oC -240÷+50 Emitting Area, µm 300x300 f=2 kHz 2A 500 µs 260 oC Soldering temperature TO-18 with Parabolic Reflector Package Package TO-18 with Reflector LED43 - typical spectra at different temperatures 3,5 T=3 C 3,0 Intensity, arb.un. T=21 C 2,5 T=47 C 2,0 1,5 1,0 0,5 0,0 2800 3000 3200 3400 3600 3800 4000 4200 4400 4600 4800 5000 5200 Wavelength, nm LED43 - typical Current - Voltage characteristic 40 LED43 - typical Power vs. current characteristic 10 Far field pattern with and without reflector 1 30 0,9 8 0,8 0,7 0,6 0,5 Current,mA Power, µW 20 6 4 2 0,4 10 0,3 0,2 0 0,1 0 -2 -1 -10 0 -20 1 2 LED43 (without reflector) -30 0 0 50 100 Current, mA 150 200 -40 Voltage,V LED43-PR (with reflector)