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| LED Red LED L7868 series Small emission spot, red LED using current confined chip L7868/-02 are red LEDs with a microball lens bonded to the current-confined structure chip surface. L7868-01 uses the same structure LED chip with no microball lens and provides a smaller emission spot of 150 m. L7868-02 uses a glass lens window for even narrower directivity (beam spread). Features L7868: 400 m L7868-01: 150 m l Uniform emission pattern l Narrow directivity: L7868-02 Applications l Small emission spot l Optical switches l Automatic control system s Absolute maximum ratings (Ta=25 C, unless otherwise noted) Parameter Symbol Condition Reverse voltage V4 Forward current I. Forward current Ta > 25 C derating rate Pulse forward Pulse width=10 s I.2 current Duty ratio=1 % Pulse forward Ta > 25 C current derating rate Power dissipation P Operating Topr temperature Storage temperature Tstg Value 3 60 0.8 0.5 7 180 -30 to +85 -40 to +100 Unit V mA mA/C A mA/C mW C C s Electrical and optical characteristics (Ta=25 C) Parameter Peak emission wavelength Spectral half width (FWHM) Radiant flux Radiant illuminance Forward voltage Pulse forward voltage Reverse current Rise time Fall time Symbol lp Dl fe PV. V.2 I4 tr tf Condition I.=20 mA I.=20 mA I.=20 mA I.=20 mA I.=20 mA I.=0.5 A V4=3 V I.=20 mA, 10 % to 90 % I.=20 mA, 90 % to 10 % L7868 Min. 650 0.35 Typ. 670 20 0.45 0.1 1.9 4.3 0.06 0.06 Max. 700 2.2 5.5 10 0.1 0.1 Min. 650 0.15 L7868-01 Typ. 670 20 0.2 1.9 4.3 0.06 0.06 Max. 700 2.2 5.5 10 0.1 0.1 Min. 650 0.35 L7868-02 Typ. 670 20 0.45 0.4 1.9 4.3 0.06 0.06 Max. 700 2.2 5.5 10 0.1 0.1 Unit nm nm mW mW/cm V V A s s 1 Red LED s Emission spectrum 100 L7868 series (Typ.Ta=25 C, tw=100 s, 0.1 %) s Radiant flux vs. forward current 100 s Forward current vs. forward voltage 1000 (Typ. Ta=25 C, IF=20 mA) (Typ. Ta=25 C, tw=100 s, 0.1 %) RELATIVE RADIANT OUTPUT (%) RADIANT FLUX (mW) L7868/-02 10 FORWARD CURRENT (mA) 80 100 60 40 1 L7868-01 10 20 0 600 0.1 650 700 750 800 10 100 1000 1 1 2 3 4 5 WAVELENGTH (m) KLEDB0238EA FORWARD CURRENT (mA) KLEDB0242EA FORWARD VOLTAGE (V) KLEDB0243EA s Directivity (Typ. Ta=25 C) 20 10 100 % 10 20 s Radiant output vs. ambient temperature +3 (Typ. IF=50 mA) s Allowable forward current vs. ambient temperature (Typ.) RELATIVE RADIANT OUTPUT (dB) L7868-02 30 RELATIVE ALLOWABLE FORWARD CURRENT (%) L7868 80 % 30 +2 +1 0 -1 -2 -3 -4 -5 -40 100 80 40 60 % 40 60 50 60 70 80 90 40 % L7868-01 20 % 50 60 70 80 90 40 20 -20 0 20 40 60 80 100 0 -40 -20 0 20 40 60 80 100 RELATIVE RADIANT OUTPUT (%) KLEDB0244EA AMBIENT TEMPERATURE (C) KLEDB0245EA AMBIENT TEMPERATURE (C) KLEDB0027EB s Allowable forward current vs. duty ratio 10 (Typ. Ta=25 C) s Dimensional outlines (unit: mm) L7868/-01 5.4 0.2 4.7 0.1 3.6 0.2 L7868-02 5.4 0.2 4.65 0.1 ALLOWABLE FORWARD CURRENT (A) 1 PULSE WIDTH=1 s PULSE WIDTH=10 s 0.1 PULSE WIDTH=100 s 4.5 0.2 13.5 0.01 0.01 0.45 LEAD 0.1 1 10 100 0.45 LEAD 2.54 0.2 DUTY RATIO (%) KLEDB0246EA 2.54 0.2 COMMON TO CASE COMMON TO CASE KLEDA0075EA 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. (c)2001 Hamamatsu Photonics K.K. 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 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) 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: Smidesvagen 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 13.5 KLEDA0076EA 6.65 0.2 GLASS WINDOW 3.0 0.1 2 Cat. No. KLED1038E01 Dec. 2001 DN |
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