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Electrical and optical characteristics (Ta=25 °C) Peak emission wavelength λpI F=50 mA 870 890 920 870 890 920 870 890 920 nm Spectral half width ∆λ IF=50 mA -8 0- -8 0- -8 0- nm Reverse current IR VR=5 V - - 5 - - 5 - - 5 μA Radiant fl ux ɸe IF=50 mA 8 10 - 3.6 4.5 - 3.6 4.5 - mW Radiant illuminance PE IF=50 mA - 1.0 - - 2.7 - - 1.0 - mW/cm 2 The L1915 is mounted on a TO-46 metal stem potted with clear epoxy resin. The L1915-01 is encapsulated in a TO-46 package sealed with a glass lens window. The L1915-02 is also encapsulated in a TO-46 package but sealed with a fl at glass window.

Forward current vs. forward voltage Radiant flux vs. forward current Directivity 1 10 100 1000 10000 100 1000 Forward current (mA) Radiant flux (mW) (Typ. Ta=25 °C, tw=100 μs, 0.1%) L1915-01/-02 L1915 KLEDB0117EB KLEDB0139EC 700 800 900 1000 100 Wavelength (nm) Relative radiant output (%) (Typ. Ta=25 °C, IF=50 mA) Relative radiant output (%) (Typ. Ta=25 °C) 80% 40% 60% 20° 10° 0° 10° 20° 90° 80° 50° 40° 30° 70° 60° 90° 80° 50° 40° 30° 70° 60° 100 L1915 L1915-02 L1915-01 KLEDB0140EB KLEDB0141EA 100 10000 1000 Forward voltage (V) Forward current (mA) (Typ. Ta=25 °C, tw=100 μs, 0.1%)

Allowable forward current vs. duty ratio Radiant output vs. ambient temperature Allowable forward current vs. ambient temperature -40 -20 0 20 40 60 80 100 100 Ambient temperature (°C) Relative allowable forward current (%) KLEDB0150EA KLEDB0027EC Ambient temperature (°C) Relative radiant output (dB) (Typ. IF=50 mA) -40 -20 0 20 40 60 80 100 0.01 0.1 1 10 100 100 1000 10000 Duty ratio (%) Allowable forward current (mA) (Ta=25 °C) Pulse width=1 μs Pulse width=100 μs Pulse width=10 μs KLEDB0287EB

Cat. No. KLED1013E04 Nov. 2015 DN 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 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 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. Information described in this material is current as of November, 2015. Dimensional outlines (unit: mm) L1915-01 L1915-02L1915 Related information Precautions ∙ Disclaimer ∙ Metal, ceramic, plastic products www.hamamatsu.com/sp/ssd/doc_en.html ϕ4.65 ± 0.1 4.5 ± 0.2 6.65 ± 0.213.5 ϕ5.4 ± 0.2 ϕ2.54 ± 0.2 Common to case ϕ0.45 lead 1.12 ± 0.1 Clear epoxy resin ϕ5.4 ± 0.1 ϕ4.2 ± 0.1 ϕ0.45 lead ϕ2.54 ± 0.2 2.3 ± 0.313.5 Common to case ɸ5.4 ± 0.2 ɸ4.7 ± 0.1 Glass window ɸ3.0 ± 0.1 3.6 ± 0.213.5 ɸ2.54 ± 0.2 Common to case ɸ0.45 lead KLEDA0009ED KLEDA0052EB KLEDA0053EB