Infrared LED L2388 series TO-46 type GaAs infrared LED Features Applications High radiant output power Optical switches High reliability Automatic control systems Absolute maximum ratings (Ta=25 °C) Parameter Forward current Reverse voltage Symbol IF VR Pulse forward current IFP Operating temperature Storage temperature Topr Tstg Condition Value 80 5 Unit mA V 1.0 A -30 to +85 -40 to +100* °C °C Pulse width=10 μs Duty ratio=1% * The L2388 is 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 Radiant illuminance Rise time Fall time Symbol λp ∆λ VF VFP IR ɸe PE tr tf Condition IF=50 mA IF=50 mA IF=50 mA IF=1.0 A VR=5 V IF=50 mA IF=50 mA IF=50 mA, 10 to 90% IF=50 mA, 90 to 10% Min. 920 4.5 - L2388 Typ. 945 45 1.3 2.3 6.0 0.6 1.2 1.3 www.hamamatsu.com Max. 970 1.4 2.9 5 2.0 2.0 Min. 920 2.6 - L2388-01 Typ. 945 45 1.3 2.3 3.4 1.4 1.2 1.3 Max. 970 1.4 2.9 5 2.0 2.0 Unit nm nm V V μA mW mW/cm2 μs μs 1 Infrared LED L2388 series Emission spectrum (Typ. Ta=25 °C, IF=50 mA) 100 (Typ. Ta=25 °C, tw=100 μs, 0.1%) 1000 80 100 Radiant flux (mW) Relative radiant output (%) Radiant flux vs. forward current 60 40 L2388 10 L2388-01 1 20 0 800 900 1000 1100 0.1 1 10 Wavelength (nm) 100 1000 Forward current (mA) KLEDB0122EA Forward current vs. forward voltage KLEDB0209EB Directivity (Typ. Ta=25 °C) 1000 (Typ. Ta=25 °C, tw=100 μs, 0.1%) 20° 10° 0° 10° 30° Forward current (mA) 20° 100% 30° 80 % L2388 60 % L2388-01 100 40° 50° 40 % 40° 50° 10 60° 70° 1 1.0 1.5 2.0 60° 20 % 70° 80° 80° 90° 90° 2.5 Forward voltage (V) Relative radiant output (%) KLEDB0210EA KLEDB0123EA 2 Infrared LED L2388 series Radiant output vs. ambient temperature Allowable forward current vs. ambient temperature (Typ. IF=50 mA) Relative allowable forward current (%) +3 Relative radiant output (dB) +2 +1 0 -1 -2 -3 -4 -5 -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) KLEDB0211EA KLEDB0027EC 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 L2388 series Dimensional outlines (unit: mm) L2388 L2388-01 13.5 ϕ0.45 lead ϕ2.54 ± 0.2 6.65 ± 0.2 4.5 ± 0.2 ϕ4.65 ± 0.1 13.5 1.12 ± 0.1 Clear epoxy resin ϕ4.2 ± 0.1 ϕ0.45 lead ϕ5.4 ± 0.2 2.3 ± 0.3 ϕ5.4 ± 0.1 ϕ2.54 ± 0.2 Common to case KLEDA0009ED Common to case KLEDA0052EB 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. KLED1012E02 Nov. 2015 DN 4