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HSDL-4271 High-Performance T-13/4 (5mm) AlGaAs Infrared (940nm) Lamp Datasheet Description The HSDL-4271 Infrared emitter was designed for applications that require high power and low forward voltage. It utilizes Aluminum Galium Arsenide (AlGaAs) LED technology and is optimized for efficiency at emission wavelengths of 940 nm. The material used produces high radiant efficiency over a wide range of currents. The emitter is packaged in clear T-13/4 (5mm) package. 5.0 0.2 Features * High Power AlGaAs LED Technology * 940 nm Wavelength * T-13/4 Package * Low Cost * Low Forward Voltage: 1.2V at 20mA Applications * Industrial Infrared Equipments and Applications (Smoke Detectors etc) * Consumer Electronics (Infrared Remote Controller etc) 8.7 0.2 1.14 0.2 * Infrared spotlight for cameras * Discrete Interrupters * Infrared source for optical counters and card readers 5.8 0.2 Part Number 31.6 min. 0.7 max. 2.54 Lead Form Straight Shipping Option Bulk HSDL-4271 CATHODE FLAT 1.0 min. 0.50 0.1 Absolute Maximum Ratings at 25C Parameter Peak Forward Current Forward Current Power Dissipation Reverse Voltage Storage Temperature LED Junction Temperature Lead Soldering Temperature Notes: 1. Derate as shown in Figure 6. Symbol IFPK IFDC PDISS VR TS TJ Minimum 5 -40 Maximum 350 100 200 100 110 260 for 5 sec Unit mA mA mW V C C C Reference Duty cycle = 20% period = 200us IR=100uA Recommended Operating Conditions Parameter Operating Temperature Symbol TO Min -40 Max 85 Unit C Reference Electrical Characteristics at 25C Parameter Forward Voltage Forward Voltage Temperature Coefficient Series Resistance Diode Capacitance Thermal Resistance, Junction to Ambient Symbol VF V/T RS CO Rja Min. Typ. 1.2 1.4 -1.0 2 25 310 Max. 1.5 1.7 Unit V mV/C Ohms pF C/W Condition IFDC=20mA IFDC=100mA IFDC=100mA IFDC=100mA VR=0V, f=1MHz Reference Figure 2 Figure 3 Figure 4 Optical Characteristics at 25C Parameter Radiant On-Axis Intensity Radiant On-Axis Intensity Temperature Coefficient Viewing Angle Peak Wavelength Spectral Width Optical Rise and Fall Time Symbol IE IE/T 21/2 pk tr/tf Min. 25 Typ. 50 -0.3 -0.5 30 940 50 1.3 Max. Unit mW/Sr %/C nm nm us ILED=20mA ILED=100mA Condition ILED=100mA ILED=100mA Figure 7 Figure 1 Figure 1 Reference Figure 4 2 1.0 Relative Radiant Intensity 0.8 0.6 0.4 0.2 0 800 900 Wavelength (nm) Figure 1. Relative Radiant Intensity vs. Wavelength 1000 DC Forward Current vs. Forward Voltage at Temp=25C IFDC - DC Forward Current,, - (mA) 100 10 1 0 0.5 1 VF - Forward Voltage - (V) 1.5 Figure 2. DC Forward Current vs. Forward Voltage IFPK - Peak Forward Current - (mA) Peak Forward Current vs. Forward Voltage at Ta=25C 100 IE - Radiant Intensity - (mW/Sr) 1000 Radiant Intensity, IE vs. Forward Current, IF at Ta=25 C 60 40 10 20 1 0.0 0.5 1.0 1.5 VF - Forward Voltage - (V) 2.0 0 20 50 IF - Forward Current - (mA) 100 Figure 3. Peak Forward Current vs. Forward Voltage Figure 4. Radiant Intensity vs. DC Forward Current Average VF versus Temperature 1.6 VF - Average - (Volts) Maximum allowable DC current vs. ambient temperature 110 100 90 80 70 60 50 40 30 20 10 0 0 20 IDC MAX - Maximum DC Current - (mA) 1.5 If=100mA 1.4 1.3 If=20mA 1.2 1.1 1.0 -40 -25 0 25 50 70 Temperature - (C) 85 100 RJA=300C/ 40 60 80 TA - Ambient Temperature - (C) 100 Figure 5. Forward Voltage vs. Ambient Temperature Figure 6: DC Forward Current vs. Ambient Temperature Derated Based on TJMAX =110C 3 Radiation Profile 1.2 1.0 0.8 0.6 0.4 0.2 0 -100 -50 0 Angle () 50 100 Figure 7. Radiant Intensity vs. Angular Displacement For company and product information, please go to our web site: WWW.liteon.com or http://optodatabook.liteon.com/databook/databook.aspx Data subject to change. Copyright (c) 2007 Lite-On Technology Corporation. All rights reserved. Relative Rad Power |
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