LTE-R38381S-ZF-U

IR Emitter and Detector LTE-R38381S-ZF-U 1. Description Lite-On offers a broad range of discrete infrared components for application such as remote control, IR wireless data transmission, security alarm & etc. Customers need infrared solutions featuring high power, high speed and wide viewing angels. The product line includes GaAs 940nm IREDs, AlGaAs high speed 850nm IREDs, PIN Photodiodes and Phototransistors. Photodiodes and Phototransistors can be provided with a filter that reduces digital light noise in the sensor function, which enables a high signal-to-noise ratio. 1. 1. Features



High power LED light source High performance, long life High LED driving current Meet ROHS, Green Product 1.2. Applications

Infrared emitter PCB Mounted Infrared Sensor 2. Outline Dimensions Notes : 1. All dimensions are in millimeters (inches). 2. Tolerance is ±0.1mm (.004") unless otherwise noted. 3. Specifications are subject to change without notice. 1/6 Part No. : LTE-R38381S-ZF-U BNS-OD-FC 002/A4 IR Emitter and Detector LTE-R38381S-ZF-U 3. Absolute Maximum Ratings at TA=25°C Parameter Maximum Rating Unit 3.4 W Peak Forward Current(300pps, 10µs pulse) 5 A DC Forward Current 1 A Reverse Voltage 5 V Thermal Resistance Junction 10 K/W Power Dissipation Operating Temperature Range -40°C to + 85°C Storage Temperature Range -55°C to + 100°C Infrared Soldering Condition 260°C for 10 Seconds Max. 4. Electrical / Optical Characteristics at TA=25°C Parameter Symbol Min. Typ. Max. Unit Test Condition Radiant Intensity IE 160 - - mW/sr IF = 1A Total Radiant Flux Фe - 970 - mW IF = 1A λPeak - 940 - nm IF = 1A Spectral Line Half-Width ∆λ - 50 - nm IF = 1A Forward Voltage VF - 3.0 3.4 V IF = 1A Reverse Current IR - - 10 µA VR = 5V Rise/Fall Time Tr/Tf - 30 - ns 10%~90% Viewing Angle 2θ1/2 - 150 - deg Peak Emission Wavelength NOTE: 1. θ1/2 is the off-axis angle at which the luminous intensity is half the axial luminous intensity. 2. The dominant wavelength, λd is derived from the CIE chromaticity diagram and represents the single wavelength which defines the color of the device. 2/6 Part No. : LTE-R38381S-ZF-U BNS-OD-FC 002/A4 IR Emitter and Detector LTE-R38381S-ZF-U 5. Typical Electrical / Optical Characteristics Curves (25°C Ambient Temperature Unless Otherwise Noted) 1.2 Forward Current IF (A) Relative Radiant Intensity 1.0 0.5 940 0.8 0.6 0.4 0.2 0 -40 -20 0 1040 20 40 60 80 100 Wavelength (nm) Ambient Temperature Ta ( o C) FIG.1 SPECTRAL DISTRIBUTION FIG.2 FORWARD CURRENT VS. AMBIENT TEMPERATURE 1000 1.2 Output Power Relative To Value at IF=1A Forward Current (mA) 0 840 1 800 600 400 200 0 1.0 0.8 0.6 0.4 0.2 0 0 2.0 2.5 3.0 3.5 4.0 -20 0 20 40 60 80 Forward Voltage (V) Ambient Temperature Ta ( o C) FIG.3 FORWARD CURRENT VS. FORWARD VOLTAGE FIG.4 RELATIVE RADIANT INTENSITY VS. AMBIENT TEMPERATURE 0 o 10 o 20 o 30 Relative Radiant Intensity Output Power Relative To Value at IF=1A 5.0 4.0 3.0 2.0 1.0 40 o o 1.0 0.9 50 o 0.8 60 o 0.7 70 80 90 o o o 0 0 1 2 3 4 5 0.5 0.3 0.1 0.2 0.4 0.6 Foward Current (A) FIG.5 RELATIVE RADIANT INTENSITY VS. FORWARD CURRENT FIG.6 RADIATION DIAGRAM 3/6 Part No. : LTE-R38381S-ZF-U BNS-OD-FC 002/A4 IR Emitter and Detector LTE-R38381S-ZF-U 6. Suggest Soldering Pad Dimensions 7. Package Dimensions Of Tape And Reel Cathode Note: All dimensions are in millimeters (inches). 4/6 Part No. : LTE-R38381S-ZF-U BNS-OD-FC 002/A4 IR Emitter and Detector LTE-R38381S-ZF-U Note: 1. All dimensions are in millimeters (inches). 2. Empty component pockets sealed with top cover tape. 3. 7 inch reel-600 pieces per reel. 4. The maximum number of consecutive missing parts is two. 5. In accordance with ANSI/EIA 481-1-A-1994 specifications. 8. CAUTIONS 8.1. Application The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment, communication equipment and household applications).Consult Liteon’s Sales in advance for information on applications in which exceptional reliability is required, particularly when the failure or malfunction of the LEDs may directly jeopardize life or health (such as in aviation, transportation, traffic control equipment, medical and life support systems and safety devices). 8.2. Storage The package is sealed: The LEDs should be stored at 30°C or less and 90%RH or less. And the LEDs are limited to use within one year, while the LEDs is packed in moisture-proof package with the desiccants inside. The package is opened: The storage ambient for the LEDs should not exceed 30°C temperature or 60% relative humidity. It is recommended that LEDs out of their original packaging are IR-reflowed within one week hrs. For extended storage out of their original packaging, it is recommended that the LEDs be stored in a sealed container with appropriate desiccant, or in a desiccators with nitrogen ambient. LEDs stored out of their original packaging for more than one week hrs should be baked at about 60 deg C for at least 20 hours before solder assembly. 8.3. Cleaning Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LEDs if necessary. 5/6 Part No. : LTE-R38381S-ZF-U BNS-OD-FC 002/A4 IR Emitter and Detector LTE-R38381S-ZF-U 8.4. Soldering Recommended soldering conditions: Reflow Soldering Pre-heat Pre-heat time Peak temperature Soldering time 150~200°C 120 seconds Max. 260°C Max. 10 seconds Max.(Max. two times) Soldering iron Temperature Soldering time 300°C Max. 3 seconds Max. (one time one) Because different board designs use different number and types of devices, solder pastes, reflow ovens, and circuit boards, no single temperature profile works for all possible combinations. However, you can successfully mount your packages to the PCB by following the proper guidelines and PCB-specific characterization. LITE-ON Runs both component-level verification using in-house KYRAMX98 reflow chambers and board-level assembly. The results of this testing are verified through post-reflow reliability testing. Profiles used at LITE-ON are based on JEDEC standards to ensure that all packages can be successfully and reliably surface mounted. Figure on page3 shows a sample temperature profile compliant to JEDEC standards. You can use this example as a generic target to set up your reflow process. You should adhere to the JEDEC profile limits as well as specifications and recommendations from the solder paste manufacturer to avoid damaging the device and create a reliable solder joint. 8.5. Drive Method An LED is a current-operated device. In order to ensure intensity uniformity on multiple LEDs connected in parallel in an application, it is recommended that a current limiting resistor be incorporated in the drive circuit, in series with each LED as shown in Circuit A below. Circuit model (A) LED Circuit model (B) LED (A) Recommended circuit (B) The brightness of each LED might appear different due to the differences in the I-V characteristics of those LEDs. 9. Others The appearance and specifications of the product may be modified for improvement, without prior notice. 6/6 Part No. : LTE-R38381S-ZF-U BNS-OD-FC 002/A4