LED Infrared LED L9337 High power LED for optical switches L9337 is an infrared LED developed for optical switches. Because a high-power LED chip is mounted, L9337 provides higher radiant output power than previous devices, yet is available at a low cost due to the improved manufacturing process. L9337 also achieves a directivity that matches applications using a light-transmitting lens. Features Applications l High radiant output power: 1.5 times higher than previous l Optical switches device (L2656) l High reliability l Low price ■ Absolute maximum ratings (Ta=25 °C, unless otherwise noted) Parameter Reverse voltage Forward current Forward current reduction rate Symbol Condition VR IF Ta > 25 °C Pulse width=10 µs Pulse forward current IFP Duty ratio=1 % Pulse forward current reduction rate Ta > 25 °C Power dissipation P Operating temperature Topr Storage temperature Tstg *1: Guaranteed to resist temperature cycle test of up to 5 cycles. Value 5 80 1.1 Unit V mA mA/°C 1.0 A 13 150 -30 to +85 -40 to +100 *1 mA/°C mW °C °C ■ Electrical and optical characteristics (Ta=25 °C) Parameter Symbol Condition Min. Peak emission wavelength IF=50 mA 840 λp Spectral half width IF=50 mA ∆λ Forward voltage VF IF=50 mA Pulse forward voltage VFP IF=1 A Reverse current IR VR=5 V Radiant flux IF=50 mA 18 φe Cut-off frequency *2 fc IF=50 mA ± 4 mAp-p 25 *2: Frequency at which the optical output drops by -3 dB from that at 100 kHz. Typ. 870 45 1.47 3.5 23 40 Max. 900 1.55 4.3 5 - Unit nm nm V V µA mW MHz 1 Infrared LED ■ Emission spectrum 100 FORWARD CURRENT (mA) 60 40 100 10 20 830 850 870 890 910 1 10 930 100 WAVELENGTH (nm) ■ Directivity 10˚ 10˚ 20˚ 30˚ RELATIVE RADIANT OUTPUT (dB) 30˚ 80 % 60 % 40˚ 50˚ 40˚ 50˚ 40 % 60˚ 60˚ 20 % 70˚ 70˚ 80˚ 80˚ 90˚ 90˚ RELATIVE RADIANT OUTPUT (%) -1 -2 -20 0 20 40 60 80 100 AMBIENT TEMPERATURE (˚C) 4.0 KLEDB0251EA 100 80 60 40 20 0 -40 -20 0 20 40 60 80 100 AMBIENT TEMPERATURE (˚C) KLEDB0253EA KLEDB0254EA ■ Dimensional outline (unit: mm) CLEAR EPOXY RESIN 2.3 ± 0.3 5.4 ± 0.1 (Typ. Ta=25 ˚C) 10 3.5 (Typ.) 0 KLEDB0252EA ■ Allowable forward current vs. duty ratio 3.0 ■ Allowable forward current vs. ambient temperature 1 -3 -40 2.5 (Typ. IF=50 mA) 2 100 % 2.0 KLEDB0250EA RELATIVE ALLOWABLE FORWARD CURRENT (%) 20˚ 1.5 FORWARD VOLTAGE (V) ■ Radiant output vs. ambient temperature (Typ. Ta=25 ˚C) 100 10 1.0 1000 FORWARD CURRENT (mA) KLEDB0249EA (Typ. Ta=25 ˚C, tw=100 µs, 1 %) 1000 80 0 810 4.2 ± 0.1 PULSE WIDTH=10 µs 0.45 ± 0.05 LEAD PULSE WIDTH=100 µs 13.5 ± 1 PULSE WIDTH=1 µs 1 1.12 ± 0.1 ALLOWABLE FORWARD CURRENT (A) ■ Forward current vs. forward voltage (Typ. Ta=25 ˚C, tw=100 µs, 1 %) 1000 RADIANT FLUX (mW) RELATIVE RADIANT OUTPUT (%) ■ Radiant flux vs. forward current (Typ. Ta=25 ˚C, IF=50 mA) L9337 0.1 2.54 ± 0.2 0.01 0.01 0.1 1 10 100 DUTY RATIO (%) KLEDB0038EA COMMON TO CASE KLEDA0081EA Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2003 Hamamatsu Photonics K.K. HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184, http://www.hamamatsu.com U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658 France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741 Cat. No. KLED1043E01 2 Nov. 2003 DN