Infrared LED L12771 series Peak emission wavelength: 1.3 μm The L12771 series is a long wavelength LED using InGaAs material. Peak emission wavelength is 1.3 μm, making the L12771 series suitable as a reference light source for detection of moisture. Features Applications Peak emission wavelength: 1.3 μm Reference light source for moisture meter High radiant output power Light source for detecting photosensitive material Absolute maximum ratings (Ta=25 °C unless otherwise noted) Parameter Reverse voltage Forward current Forward current derating rate Pulse forward current Pulse forward current derating rate Power dissipation Operating temperature Storage temperature Soldering conditions Symbol VR IF IFP P Topr Tstg Condition Value 1 80 1.1 Unit V mA mA/°C 1.0 A 13 mA/°C 150 -30 to +85 -40 to +100 260 °C or less, within 5 s, at least 1 mm away from lead roots mW °C °C Ta > 25 °C Pulse width=10 μs Duty ratio=1% Ta > 25 °C No condensation No condensation - - 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 Radiant flux Forward voltage Pulse forward voltage Reverse current Cutoff frequency*1 Symbol λp ∆λ ϕe VF VFP IR fc Condition IF=50 mA IF=50 mA IF=50 mA IF=50 mA IF=1 A VR=1 V IF=50 mA ± 10 mAp-p Min. 1.25 2.0 10 L12771 Typ. 1.3 90 2.8 1.0 1.9 15 Max. 1.35 140 1.5 2.8 10 - Min. 1.25 2.2 10 L12771-01 Typ. 1.3 90 3.1 1.0 1.9 15 Max. 1.35 140 1.5 2.8 10 - Unit μm nm mW V V μA MHz *1: Frequency at which the light output decreases by 3 dB from the light output at 100 kHz www.hamamatsu.com 1 Infrared LED L12771 series Emission spectrum Radiant flux vs. forward current (Typ. Ta=25 °C, IF=50 mA) 100 (Typ. Ta=25 °C, tw=100 μs, 0.1%) 100 90 70 Radiant flux (mW) Relative light output (%) 80 60 50 40 30 L12771-01 10 L12771 1 20 10 0 1000 1100 1200 1300 1400 0.1 10 1500 100 Wavelength (nm) 1000 Forward current (mA) KLEDB0332EA Pulse forward current vs. pulse forward voltage KLEDB0389EA Directivity (Typ. Ta=25 °C, tw=100 μs, 0.1%) 1000 20° 10° 0° 10° (Typ. Ta=25 °C) 20° 30° 30° 40° Pulse forward current (mA) 40° 50° 50° 60° L12771 60° 70° 70° L12771-01 80° 80° 100 90° 100 80 60 40 20 0 20 40 60 80 90° 100 Relative light output (%) KLEDB0391EA 10 0.5 1.0 1.5 2.0 2.5 Pulse forward voltage (V) KLEDB0390EA 2 Infrared LED L12771 series Light output vs. ambient temperature Allowable forward current vs. ambient temperature (Typ. IF=50 mA) 3 110 Relative forward current (%) Relative light output (dB) 2 1 0 -1 -2 -3 100 90 80 70 60 50 40 30 20 -4 -5 -40 (Typ.) 120 10 -20 0 20 40 60 80 100 Ambient temperature (°C) 0 -40 -20 0 20 40 60 80 100 Ambient temperature (°C) KLEDB0392EA KLEDB0328EA Allowable forward current vs. duty ratio (Typ. 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 (%) KLEDB0225EA 3 Infrared LED L12771 series Dimensional outline (unit: mm) L12771-01 ɸ5.4 ± 0.2 ɸ4.7 ± 0.1 ɸ4.65 ± 0.1 ɸ0.45 ± 0.05 Lead 13.5 ± 1 13.5 ± 1 Glass window ɸ3.0 ± 0.1 4.5 ± 0.2 3.6 ± 0.2 ɸ5.4 ± 0.2 ɸ0.45 ± 0.05 Lead ɸ2.54 ± 0.2 6.65 ± 0.2 L12771 ɸ2.54 ± 0.2 Common to case Common to case Standard packing type: Paper box (200 pieces/box) KLEDA0090EB Standard packing type: Paper box (200 pieces/box) KLEDA0091EB Related information www.hamamatsu.com/sp/ssd/doc_en.html Precautions · Notice · Metal, ceramic, plastic package / Precautions Technical information · LED / Technical information Information described in this material is current as of April, 2014. 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. Type numbers of products listed in the delivery specification sheets or supplied as samples may have a suffix "(X)" which means preliminary specifications or a suffix "(Z)" which means developmental 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, 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) 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: Thorshamnsgatan 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) 02-935-81-733, Fax: (39) 02-935-81-741 China: Hamamatsu Photonics (China) Co., Ltd.: 1201 Tower B, Jiaming Center, No.27 Dongsanhuan Beilu, Chaoyang District, Beijing 100020, China, Telephone: (86) 10-6586-6006, Fax: (86) 10-6586-2866 Cat. No. KLED1068E01 Apr. 2014 DN 4