Infrared LED L9338 For optical switches The L9338 is an infrared LED developed for optical switches and is available at a low cost due to the improved manufacturing process. Features Applications High reliability Optical switches Low price Absolute maximum ratings (Ta=25 °C, unless otherwise noted) Parameter Symbol Condition Reverse voltage VR Forward current IF Forward current reduction rate 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 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 *1: Guaranteed to resist temperature cycle test of up to 5 cycles Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the product within the absolute maximum ratings. Electrical and optical characteristics (Ta=25 °C) Parameter Peak emission wavelength Spectral half width Forward voltage Pulse forward voltage Reverse current Radiant flux Cutoff frequency*2 Symbol λp ∆λ VF VFP IR ɸe fc Condition IF=50 mA IF=50 mA IF=50 mA IF=1 A VR=5 V IF=50 mA IF=50 mA ± 4 mAp-p Min. 920 10 0.1 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 *2: Frequency at which the optical output drops by 3 dB from that at 10 kHz www.hamamatsu.com 1 Infrared LED L9338 Emission spectrum Radiant flux vs. forward current (Typ. Ta=25 °C, IF=50 mA) 100 (Typ. Ta=25 °C, tw=100 μs, 1%) 1000 Radiant flux (mW) Relative radiant output (%) 80 60 40 100 10 20 0 880 900 920 940 960 980 1000 1 10 100 Wavelength (nm) 1000 Forward current (mA) KLEDB0255EA Forward current vs. forward voltage KLEDB0256EB Directivity 20° (Typ. Ta=25 °C, tw=100 μs, 1%) 1000 (Typ. Ta=25 °C) 10° 10° 20° 100% 30° 30° Forward current (mA) 80% 40° 60% 40° 100 50° 40% 60° 70° 10 1.0 1.5 2.0 2.5 3.0 3.5 4.0 50° 60° 20% 70° 80° 80° 90° 90° Relative radiant output (%) Forward voltage (V) KLEDB0257EB KLEDB0258EA 2 Infrared LED L9338 Radiant output vs. ambient temperature Allowable forward current vs. ambient temperature (Typ. IF=50 mA) Relative allowable forward current (%) 2 Relative radiant output (dB) 1 0 -1 -2 -3 -40 -20 0 20 40 60 80 100 Ambient temperature (°C) 100 80 60 40 20 0 -40 -20 0 20 40 60 80 100 Ambient temperature (°C) KLEDB0259EA KLEDB0254EB Allowable forward current vs. duty ratio (Ta=25 °C) Allowable forward current (A) 10 Pulse width=1 μs Pulse width=10 μs 1 Pulse width=100 μs 0.1 0.01 0.01 0.1 1 10 100 Duty ratio (%) KLEDB0038EB 3 Infrared LED L9338 Dimensional outline (unit: mm) 1.12 ± 0.1 ϕ0.45 ± 0.05 lead 13.5 ± 1 2.3 ± 0.3 ϕ5.4 ± 0.1 Clear epoxy resin ϕ4.2 ± 0.1 ϕ2.54 ± 0.2 Common to case KLEDA0081EA Related information www.hamamatsu.com/sp/ssd/doc_en.html Precautions ∙ Disclaimer ∙ Metal, ceramic, plastic products Information described in this material is current as of November, 2015. Product specifications are subject to change without prior notice due to improvements or other reasons. This document has been carefully prepared and the information contained is believed to be accurate. In rare cases, however, there may be inaccuracies such as text errors. Before using these products, always contact us for the delivery specification sheet to check the latest specifications. The product warranty is valid for one year after delivery and is limited to product repair or replacement for defects discovered and reported to us within that one year period. However, even if within the warranty period we accept absolutely no liability for any loss caused by natural disasters or improper product use. Copying or reprinting the contents described in this material in whole or in part is prohibited without our prior permission. www.hamamatsu.com 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 U.S.A.: Hamamatsu Corporation: 360 Foothill Road, Bridgewater, N.J. 08807, 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) 8152-375-0, Fax: (49) 8152-265-8 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: Torshamnsgatan 35 16440 Kista, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.r.l.: Strada della Moia, 1 int. 6, 20020 Arese (Milano), Italy, Telephone: (39) 02-93581733, Fax: (39) 02-93581741 China: Hamamatsu Photonics (China) Co., Ltd.: B1201, Jiaming Center, No.27 Dongsanhuan Beilu, Chaoyang District, Beijing 100020, China, Telephone: (86) 10-6586-6006, Fax: (86) 10-6586-2866 Cat. No. KLED1044E03 Nov. 2015 DN 4