LED23 rev 2.0 29.04.2015 Description LED23 series are fabricated from narrow band-gap GaInAsSb/AlGaAsSb heterostructures lattice matched to GaSb substrate. This Mid-IR LED provides a typical peak wavelength of 2.35 µm and optical power of typ. 0.8 mW qCW. It comes in TO-18 package, with cap and without window (on request). Maximum Ratings Parameter Values Symbol TCASE TSLD Operating Temperature Lead Solder Temperature * Min. Unit Max. - 200 + 50 + 180 °C °C * must be completed within 5 seconds Photodiode Characteristics Parameter (TCASE=25°C) Values Typ. Symbol Conditions Peak Wavelength Half Width (FWHM) Optical Output Power, qCW λP ∆λ PO IF=150mA qCW IF=150mA qCW IF=200mA qCW 2.30 170 0.6 2.35 220 0.8 2.39 270 1.0 µm µm mW Optical Output Power, pulsed PO IF=1A, f=1kHz, duty cycle 0.1% 12 15 20 mW Operating Voltage Switching Time VOP ts 0.5 10 20 2.5 30 V ns www.roithner-laser.com IF=200mA qCW Min. Max. Unit 1 Performance Characteristics Spectra At Different Temperatures (qCW, IF=150mA) Intensity [a.u.] Intensity [a.u.] Spectra At Different Currents (qCW, TCASE=25°C) Wavelength [nm] Output Power vs. Forward Current (qCW, TCASE=25°C) Forward Current vs. Forward Voltage (TCASE=25°C) Output Power [µW] Forward Current [mA] Wavelength [nm] Forward Current [mA] Forward Voltage [V] Normalized Intensity [a.u.] Beam Divergence Angle [°] www.roithner-laser.com 2 Outline Dimensions LED23 TO-18, without window Lead Description PIN 1 LD Anode PIN 2 LD Cathode Material – kovar, finish – gold/plating All Dimensions in mm Operating Regime LED Basic Circuit Connection Suitable Drivers And Evaluation Boards • D-31M • D-41 • D-51 • mD-1c • mD-1p We recommend to use Quasi Continuous Wave (qCW) mode with duty cycle 50% or 25% to obtain maximum average optical power, and short Pulse mode to obtain maximum peak power. CW (continuous wave) mode is NOT recommended! Quasi Continuous Wave (qCW) mode www.roithner-laser.com Pulse Mode 3 Precautions Cautions: • Check your connection circuits before turning on the LED. • Mind the LED polarity: LED anode is marked with a RED dot. • DO NOT connect the LED to the multimeter. Soldering: • • • • • Do avoid overheating of the LED Do avoid electrostatic discharge (ESD) Do avoid mechanical stress, shock, and vibration Do only use non-corrosive flux Do not apply current to the LED until it has cooled down to room temperature after soldering Static Electricity: LEDs are sensitive to electrostatic discharge (ESD). Precautions against ESD must be taken when handling or operating these LEDs. Surge voltage or electrostatic discharge can result in complete failure of the device. Operation: Do only operate LEDs with a current source. Running these LEDs from a voltage source will result in complete failure of the device. Current of a LED is an exponential function of the voltage across it. Usage of current regulated drive circuits is mandatory. © All Rights Reserved The above specifications are for reference purpose only and subjected to change without prior notice www.roithner-laser.com 4