Infrared LED L7558 series High-speed, high-power infrared LED for free space optics The L7558 series LEDs were developed for free space optical communications such as image data signal transmission, and operate at high speeds of 50 MHz. The L7558 delivers a high output of 14 mW and is used in combination with a light projection lens. The L7558-01 is sealed in a metal package capped with a glass lens that produces an angle of view of 7 (full angle at half maximum). Both types employ a metal stem package that gives higher reliability than plastic package devices. Features Applications High-speed response: 50 MHz Typ. (IF=50 mA) FSO (free space optics) High radiant output power L7558 : 14 mW Typ. (IF=50 mA) L7558-01: 7 mW Typ. (IF=50 mA) High reliability 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 100 5 Unit mA V 1.0 A -30 to +85 -40 to +100 * C C Pulse width=10 s Duty ratio=1 % * Guaranteed to resist temperature cycle test of up to 5 cycles. 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 Cut-off frequency Symbol p VF VFP IR e PE fc Condition IF=50 mA IF=50 mA IF=50 mA IF=1 A VR=5 V IF=50 mA IF=50 mA IF=50 mA 1mAp-p Min. 820 11 35 L7558 Typ. 850 50 1.45 3.4 14 1.5 50 www.hamamatsu.com Max. 880 1.60 4.3 10 - Min. 820 5.5 35 L7558-01 Typ. Max. 850 880 50 1.45 1.60 3.4 4.3 10 7.0 4.0 50 - Unit nm nm V V A mW mW/cm2 MHz 1 Infrared LED L7558 series Emission spectrum Radiant flux vs. forward current (Typ. Ta=25 C, IF=50 mA) 100 (Typ. Ta=25 C, tw=100 s, 0.1 %) 1000 Radiant flux (mW) Relative radiant output (%) 80 60 40 100 L7558 10 L7558-01 20 0 700 800 900 1 1000 1 100 10 1000 Forward current (mA) Wavelength (nm) KLEDB0153EA Forward current vs. forward voltage Frequency characteristic (Typ. Ta=25 C, tw=100 s, 1 %) (Typ. Ta=25 C, IF=50 mA 1 mAp-p) 5 Relative output (dB) 1000 Forward current (mA) KLEDB0154EA 100 0 -5 -10 10 1.0 1.5 2.0 2.5 3.0 1 3.5 10 100 1000 Frequency (MHz) Forward voltage (V) KLEDB0155EA Directivity KLEDB0319EA Radiant output vs. ambient temperature (Typ. Ta=25 C) 20 10 0 10 100 % 30 (Typ. IF=50 mA) +2 20 +1 30 80 % 40 L7558-01 40 60 % 50 50 40 % 60 70 60 20 % 70 80 80 90 90 Relative radiant output (dB) L7558 0 -1 -2 -3 -4 -5 -40 -20 0 20 40 60 80 100 Ambient temperature (C) Relative radiant output (%) KLEDB0156EA KLEDB0066EA 2 Infrared LED L7558 series Allowable forward current vs. ambient temperature Allowable forward current vs. duty ratio (Typ. Ta=25 C) 10 100 Allowable forward current (A) Relative allowable forward current (%) (Typ.) 80 60 40 20 -20 0 20 40 60 80 100 10 s 100 s 0.1 0.01 0.01 0 -40 Pulse width=1 s 1 0.1 1 10 100 Duty ratio (%) Ambient temperature (C) KLEDB0027EB KLEDB0157EB Dimensional outlines (unit: mm) L7558 L7558-01 13.5 0.45 Lead 2.54 0.2 6.65 0.2 4.5 0.2 4.65 0.1 13.5 1.12 0.1 4.2 0.1 0.45 Lead 5.4 0.2 2.3 0.3 5.4 0.1 Clear epoxy resin 2.54 0.2 Common to case KLEDA0009ED Common to case KLEDA0052EB 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)2008 Hamamatsu Photonics K.K. 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) 08152-3750, Fax: (49) 08152-2658 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: 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 Cat. No. KLED1009E03 Jul. 2008 DN 3