LED Infrared LED L9338 For optical switches L9338 is an infrared LED developed for optical switches and is available at a low cost due to the improved manufacturing process. Features l High reliability l Low price Applications l Optical switches ■ 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 920 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 10 φe Cut-off frequency *2 fc IF=50 mA ± 4 mAp-p 0.1 *2: Frequency at which the optical output drops by -3 dB from that at 10 kHz. Typ. 945 60 1.34 3.1 15 0.3 Max. 970 1.42 3.8 5 - Unit nm nm V V µA mW MHz 1 Infrared LED ■ Emission spectrum 1000 RADIANT FLUX (mW) 60 40 100 10 20 900 920 940 960 980 1 10 1000 100 WAVELENGTH (nm) 20˚ 60 % 40˚ 50˚ 40˚ 50˚ 40 % 60˚ 60˚ 20 % 70˚ 70˚ 80˚ 80˚ 90˚ 90˚ 0 -1 -2 -20 0 20 40 60 80 100 100 80 60 40 20 0 -40 -20 0 20 40 60 80 100 AMBIENT TEMPERATURE (˚C) KLEDB0258EA KLEDB0259EA KLEDB0254EA ■ Dimensional outline (unit: mm) (Typ. Ta=25 ˚C) 5.4 ± 0.1 2.3 ± 0.3 10 (Typ.) AMBIENT TEMPERATURE (˚C) ■ Allowable forward current vs. duty ratio 4.0 ■ Allowable forward current vs. ambient temperature 1 -3 -40 RELATIVE RADIANT OUTPUT (%) 3.5 KLEDB0257EA RELATIVE ALLOWABLE FORWARD CURRENT (%) RELATIVE RADIANT OUTPUT (dB) 30˚ 3.0 (Typ. IF=50 mA) 2 80 % 2.5 KLEDB0256EA 100 % 30˚ 2.0 FORWARD VOLTAGE (V) ■ Radian output vs. ambient temperature (Typ. Ta=25 ˚C) 10˚ 1.5 FORWARD CURRENT (mA) ■ Directivity 10˚ 100 10 1.0 1000 KLEDB0255EA 20˚ (Typ. Ta=25 ˚C, tw=100 µs, 10 %) 1000 80 0 880 CLEAR EPOXY RESIN 4.2 ± 0.1 PULSE WIDTH=1 µs PULSE WIDTH=10 µs 0.45 ± 0.05 LEAD PULSE WIDTH=100 µs 0.1 13.5 ± 1 1 1.12 ± 0.1 ALLOWABLE FORWARD CURRENT (A) ■ Forward current vs. forward voltage (Typ. Ta=25 ˚C, tw=100 µs, 1 %) FORWARD CURRENT (mA) 100 RELATIVE RADIANT OUTPUT (%) ■ Radiant flux vs. forward current (Typ. Ta=25 ˚C, IF=50 mA) L9338 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 2 Cat. No. KLED1044E01 Nov. 2003 DN