LED Infrared LED L1915 series TO-46 type GaAlAs infrared LED L1915 is mounted on a TO-46 metal stem potted with clear epoxy resin. L1915-01 is encapsulated in a TO-46 package sealed with a glass lens window. L1915-02 is also encapsulated in a TO-46 package but sealed with a flat glass window. Features Applications l High radiant output power l Direct modulation possible l High reliability and long life l Auto-focus l Automatic control systems l Optical switches l Mark sensors l Optical remote control ■ 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 Pulse width=10 µs Duty ratio=1 % Value 100 5 Unit mA V 1.5 A -30 to +85 -40 to +100 * °C °C * L1915 is guaranteed to resist temperature cycle test of up to 5 cycles. ■ Electrical and optical characteristics (Ta=25 °C) Parameter Symbol Peak emission wavelength Spectral half width Forward voltage Pulse forward voltage Reverse current Radiant flux Radiant illuminance Rise time Fall time λp ∆λ VF VFP IR φe PE tr tf Condition Min. IF=50 mA 870 IF=50 mA IF=50 mA IF=1.5 A VR=5 V IF=50 mA 8 IF=50 mA IF=50 mA, 10 to 90 % IF=50 mA, 90 to 10 % - L1915 L1915-01 L1915-02 Unit Typ. Max. Min. Typ. Max. Min. Typ. Max. 890 920 870 890 920 870 890 920 nm 80 80 80 nm 1.4 1.5 1.4 1.5 1.4 1.5 V 3.1 3.8 3.1 3.8 3.1 3.8 V 5 5 5 µA 10 3.6 4.5 3.6 4.5 mW 1.0 2.7 1.0 mW/cm2 0.45 0.7 0.45 0.7 0.45 0.7 µs 0.45 0.7 0.45 0.7 0.45 0.7 µs 1 L1915 series Infrared LED ■ Emission spectrum ■ Radiant flux vs. forward current (Typ. Ta=25 ˚C, IF=50 mA) (Typ. Ta=25 ˚C, tw=100 µs, 0.1 %) 1000 80 RADIANT FLUX (mW) RELATIVE RADIANT OUTPUT (%) 100 60 40 L1915 100 10 L1915-01/-02 20 0 700 800 900 1 1000 1 10 WAVELENGTH (nm) 100 1000 10000 FORWARD CURRENT (mA) KLEDB0117EB ■ Forward current vs. forward voltage KLEDB0139EB ■ Directivity (Typ. Ta=25 ˚C) (Typ. Ta=25 ˚C, tw=100 µs, 0.1 %) 10000 20˚ FORWARD CURRENT (mA) 30˚ 10˚ 0˚ 10˚ 20˚ L1915-02 100 % 30˚ L1915 80 % 1000 L1915-01 40˚ 60 % 40˚ 100 50˚ 60˚ 10 60˚ 20 % 70˚ 1 1.0 50˚ 40 % 1.5 2.0 2.5 3.0 70˚ 80˚ 80˚ 90˚ 90˚ 3.5 RELATIVE RADIANT OUTPUT (%) FORWARD VOLTAGE (V) KLEDB0140EB ■ Radiant output vs. ambient temperature RELATIVE ALLOWABLE FORWARD CURRENT (%) RELATIVE RADIANT OUTPUT (dB) (Typ.) +2 +1 0 -1 -2 -3 -4 -20 0 20 40 60 80 100 AMBIENT TEMPERATURE (˚C) 100 80 60 40 20 0 -40 -20 0 20 40 60 80 100 AMBIENT TEMPERATURE (˚C) KLEDB0150EA 2 ■ Allowable forward current vs. ambient temperature (Typ. IF=50 mA) +3 -5 -40 KLEDB0141EA KLEDB0027EB Infrared LED L1915 series ■ Allowable forward current vs. duty ratio (Typ. Ta=25 ˚C) ALLOWABLE FORWARD CURRENT (mA) 10000 PULSE WIDTH=1 µs PULSE WIDTH=10 µs 1000 PULSE WIDTH=100 µs 100 10 0.01 0.1 1 10 100 DUTY RATIO (%) KLEDB0287EA ■ Dimensional outlines (unit: mm) L1915-01 4.7 ± 0.1 13.5 0.45 LEAD 2.54 ± 0.2 6.65 ± 0.2 4.5 ± 0.2 GLASS WINDOW 3.0 ± 0.1 13.5 0.45 LEAD 5.4 ± 0.2 4.65 ± 0.1 13.5 4.2 ± 0.1 1.12 ± 0.1 CLEAR EPOXY RESIN L1915-02 5.4 ± 0.2 2.3 ± 0.3 5.4 ± 0.1 3.6 ± 0.2 L1915 0.45 LEAD 2.54 ± 0.2 2.54 ± 0.2 COMMON TO CASE COMMON TO CASE COMMON TO CASE KLEDA0009ED KLEDA0052EB KLEDA0053EB 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. ©2006 Hamamatsu Photonics K.K. 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, 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.: 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: 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 Cat. No. KLED1013E03 Jun. 2006 DN 3