SMT850-23 TECHNICAL DATA Infrared LED, SMD AlGaAs SMT850-23 is a AlGaAs LED, mounted on a lead frame as TOP LED package with plastic ball lens. On forward bias, it emits a radiation of typical 22 mW at a peak wavelength of 850 nm. Specifications • • • • Structure: Peak Wavelength: Optical Output Power: Package: Lead frame die: Lens: • AlGaAs 850 nm 22 mW SMD, PPA resin silver plated epoxy resin (Ø2.6 mm) Absolute Maximum Ratings (TA=25°C) Item Power Dissipation Forward Current 1 Pulse Forward Current * Reverse Voltage Junction Temperature Thermal Resistance Operating Temperature Storage Temperature 2 Soldering Temperature * Symbol PD IF IFP VR TJ Rthja Topr Tstg Tsol Value 160 100 1000 5 100 190 -20 … +80 -30 … +80 255 Unit mW mA mA V °C K/W °C °C °C (Unit: mm) 1 * duty = 1%, pulse width = 10 µs 2 * must be completed within 3 seconds at 260°C Electro-Optical Characteristics Item Forward Voltage Pulse Forward Voltage Reverse Current Total Radiated Power Radiant Intensity Peak Wavelength Half Width Viewing Half Angle Rise Time Fall Time Symbol Condition VF IF = 50 mA VFP IFP = 100mA, tP = 20ms IR VR = 5 V IF = 50 mA PO IFP = 100mA, tP = 20ms IF = 50 mA IE IFP = 100mA, tP = 20ms λP IF = 50 mA Δλ IF = 50 mA Θ1/2 IF = 50 mA tr IF = 50 mA tf IF = 50 mA Min. 16 835 - Typ. 1.45 1.50 22 44 40 80 850 40 ±15 15 10 Max. 1.60 1.80 10 865 - Unit V V µA mW mW/sr nm nm deg. ns ns Radiated Power is measured by Photodyne #500 Radiant Intensity is measured by Tektronix J-6512 Note: The above specifications are for reference purpose only and subjected to change without prior notice. 30.05.2012 SMT850-23 1 of 3 Typical Performance Curves Relative Spectral Emission 30.05.2012 Radiation Characteristics SMT850-23 2 of 3 Precaution for Use 1. Cautions • DO NOT look directly into the emitting area of the LED during operation! • WARNING: LED is emitting invisible light! 2. Soldering Conditions • DO NOT apply any stress to the lead particularly when heat. • After soldering the LEDs should be protected from mechanical shock or vibration until the LEDs return to room temperature. • When it is necessary to clamp the LEDs to prevent soldering failure, it is important to minimize the mechanical stress on the LEDs. Recommended Land Layout Soldering Conditions (Unit: mm) 3. Static Electricity • The LEDs are very sensitive to Static Electricity and surge voltage. So it is recommended that a wrist band and/or an antielectrostatic glove be used when handling the LEDs. • All devices, equipment and machinery must be grounded properly. It is recommended that precautions should be taken against surge voltage to the equipment that mounts the LEDs. 4. Heat Generation • Thermal design of the end product is of paramount importance. Please consider the heat generation of the LED when making the system design. The coefficient of temperature increase per input electric power is affected by the thermal resistance of the circuit board and density of LED placement on the board, as well as other components. It is necessary to avoid intense heat generation and operate within the maximum ratings given in the specification. • The operating current should be decided after considering the ambient maximum temperature of LEDs. 5. Storage • The LEDs should be stored at 30°C or less and 60%RH or less after being shipped and the storage life limits are 3 months. If the LEDs are stored for 3 months or more, they can be stored for a year in a sealed container with nitrogen atmosphere and moisture absorbent material at less than 30%RH. • Please avoid rapid transitions in ambient temperature, especially in high humidity environments where condensation can occur. 30.05.2012 SMT850-23 3 of 3