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LED19SC - Optically Immersed 1.9 µm LED

LED19SC - Optically Immersed 1.9 µm LED
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LED19SC - Optically Immersed 1.9 µm LED - 1

Infra Red LED LED19SC Optically Immersed 1.9 µm LED in heat-sink optimised housing λmax Ppulsed PCW τ Peak wavelength Pulsed power at I=1 A CW power at I=200 mA Switching time Code LED19Sc Emission size, mm Thread М5×0.5 LED19TO8TEC µm mW mW ns 1.95±0.05 6.0±1.2 1.0±0.2 ≤20 Far-field pattern FWHM, deg. Operation (storage) conditions, 0C ≤35 Lens material -25 - +60 (+80) Si ∅ 3.3 LED19Sc Si lens and quartz window LED19Sc Polarity short wire or black point is negative See fig. below LED19TO8TEC 100 Thermosensor resistance, kOhm Product view 60 50 ∆T, K 40 30 20 1 TEC −; 2 TEC + 3 PD +; 6 PD − 4, 5 thermosensor 10 0 0.0 0.2 0.4 0.6 0.8 10 1 -40 -20 0 20 40 60 80 100 o TEC current (A) Temperature ( C) 1000 T 3 Drive current τ 2 1 600 400 200 400 o 600 800 1000 0.4 0.6 0.8 1.0 0.0 1.7 1.8 1.96 1.0 1.92 1.6 1.4 1.90 1.2 1.0 1.88 0.8 Maximal current, mA 1.8 2.1 Duty cycle = τ/ T, τ - pulse duration, T - pulse period 0.8 Intensity, arb.un. Peak wavelength, µm 2.0 2.0 2000 Power 1.94 1.9 Wavelengh, µm Voltage, V 2.4 Power at fix. current, arb.un. 0.5 20 C 0 Current, mA 2.2 o 60 C o 40 C o 20 C o 0C o -20 C 200 Time 0 Normalized Intensity 4 wafer L3 H2O absorption 800 Current, mA 5 0 1.0 o 20 C, T=255 µs τ= 5 µs 20 µs 50 µs 100 µs 235 µs 6 Pulsed power, mW Output power and peak wavelength vs. Output power vs. current, current-voltage temperature, far-field pattern and maximal curve and emission current vs. operation conditions spectra All devices are stressed at 80ºC and I=200 mA (CW) for 10 hrs before final test and shipping. Beam divergence of the LEDs is small and thus we recommend adjusting LED position regarding the detector system before final evaluation/use of the devices. All data is valid for room temperature (22ºC) and LED attached to a heatsink. A heatsink is important for normal LED operation especially in the CW mode. Available accessories include driver electronics and detectors. Available wavelengths include 1.9, 2.15, 3.0, 3.4, 3.6, 3.8, 4.2, 4.7, 5.5 and 7.0 µm. 0.6 0.4 0.2 1000 900 800 700 600 500 400 300 200 Wavelength attached to a heatsink without a heatsink 0.6 1.86 -20 -10 0 10 20 30 o40 50 60 Temperature, C 0.0 -40 100 -20 0 20 Angle, deg. 40 0.01 0.1 1 Duty cycle Rev 2.0 Page 1 [1] Scitec Instruments Ltd, Bartles Industrial Estate, North Street, Redruth, Cornwall, TR15 HR, UK Tel. +44 1209 314608, Fax +44 1209 314609 or visit our website: www.scitec.uk.com

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LED19SC - Optically Immersed 1.9 µm LED 1Pages

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LED19SC - Optically Immersed 1.9 µm LED
1Pages