L2791

L2791 HAMAMATSU | Alldatasheet

Document overview

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Technical content

Features

/K6C Small emission spot L2791 : φ400 µm L2791-03: φ160 µm /K6C Uniform emission: L2791/-02 /K6C Narrow directivity: L2791/-02

Applications

/K6C Automatic control systems /K6C Optical switches /K6C Auto-focus LED Infrared LED Small emission spot LED using current confined chip L2791 series L2791 is infrared LED with a microball lens cemented to the current confined chip surface. This combination ensures high directivity and improved emission uniformity. In particular, L2791-02 uses a lens cap that delivers even narrower directivity. As a variant type not usi ng a microball lens, L2791-03 is also available with the LED chip potted with resin, which gives a small emission spot of φ160 µm. I Absolute maximum ratings (Ta=25 °C) Parameter Symbol Condition Value Unit Forward current I F 80 mA Reverse voltage VR 3 V Pulse forward current I FP Pulse width=10 µs Duty ratio=1 % 0.5 A Operating temperature Topr -30 to +85 °C Storage temperature Tstg -40 to +100 * °C * L2791-03 is guaranteed to resist temperature cycle test of up to 5 cycles. I Electrical and optical characteristics (Ta=25 °C) Peak emission wavelength λp IF=50 mA 850 880 910 850 880 910 850 880 910 nm Spectral half width ∆λ IF=50 mA - 60 - - 60 - - 60 - nm Reverse current I R VR= 3 V -- 1 0 -- 1 0 -- 1 0µ A Radiant illuminance P E IF= 5 0 m A - 1 . 3 -- 2 . 0 ---- m W / cm 2

HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com 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.: 8, 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 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. ©2001 Hamamatsu Photonics K.K. Infrared LED L2791 series Cat. No. KLED1021E01 Apr. 2001 DN 1.12 ± 0.1 CLEAR EPOXY RESIN 5.4 ± 0.1 4.2 ± 0.1 0.45 LEAD 2.54 ± 0.2 2.3 ± 0.313.5 COMMON TO CASE 4.65 ± 0.1 4.5 ± 0.2 6.65 ± 0.213.5 5.4 ± 0.2 2.54 ± 0.2 COMMON TO CASE 0.45 LEAD 700 800 900 1000 100 WAVELENGTH (nm) RELATIVE RADIANT OUTPUT (%) (Typ. Ta=25 ˚C, IF=50 mA) 1000 100 FORWARD VOLTAGE (V) FORWARD CURRENT (mA) (Typ. Ta=25 ˚C, tw=100 µs, 1 %) FORWARD CURRENT (mA) (Typ. Ta=25 ˚C, tw=100 µs, 0.1 %) RADIANT FLUX (mW) 101 0.1 100 100 1000 L2791-03 L2791, L2791-02 90˚ 80˚ 70˚ 60˚ 50˚ 40˚ 30˚ 90˚ 80˚ 70˚ 60˚ 50˚ 40˚ 30˚ * L2791-03: Except for reflection ingredient of the base. 020406080100 20 40 60 80 100 RELATIVE RADIANT OUTPUT (%) (Typ. Ta=25 ˚C) L2791 L2791-03 * L2791-02 -40 -20 0 20 40 60 80 100 AMBIENT TEMPERATURE (˚C) RELATIVE RADIANT OUTPUT (dB) (Typ. IF=50 mA) -40 -20 0 20 (Typ.) 40 60 80 100 100 AMBIENT TEMPERATURE (˚C) RELATIVE ALLOWABLE FORWARD CURRENT (%) 5.4 ± 0.2 4.7 ± 0.1 GLASS WINDOW 3.0 ± 0.1 3.6 ± 0.213.5 2.54 ± 0.2 COMMON TO CASE 0.45 LEAD KLEDB0158EA KLEDB0160EA KLEDB0161EA KLEDA0058EA I Emission spectrum I Directivity I Radiant flux vs. forward current I Radiant output vs. ambient temperature I Forward current vs. forward voltage KLEDB0162EA KLEDB0159EA KLEDA0059EA I I I I I Dimensional outlines (unit: mm) I Allowable forward current vs. ambient temperature KLEDB0027EB KLEDA0060EA ➂ L2791-03➁ L2791-02➀ L2791