L1939

LED Infrared LED L1939 series φ300 µm emission spot, no electrode in emission area Features Applications l Small emission spot: φ300 µm l Wide directivity l High reliability, long life l Auto-focus l Optical switches l Mark sensors s Absolute maximum ratings (Ta=25 °C) Parameter Forward current Reverse voltage Symbol IF VR IFP Topr Tstg Condition Pulse forward current Operating temperature Storage temperature Pulse width=10 µs Duty ratio=1 % Value 100 5 1.5 -30 to +85 -40 to +100 * Unit mA V A °C °C * L1939 is guaranteed to resist temperature cycle test of up to 5 cycles. s 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 Rise time Fall time Symbol λp ∆λ VF VFP IR φe PE tr tf Condition IF=50 mA IF=50 mA IF=50 mA IF=1.5 A VR=5 V IF=50 mA IF=50 mA IF=50 mA, 10 to 90 % IF=50 mA, 90 to 10 % Min. 870 8.0 - L1939 Typ. 890 50 1.4 2.7 10.0 0.4 0.45 0.45 Max. 920 1.5 3.4 5 0.7 0.7 Min. 870 2.0 - L1939-04 Typ. 890 50 1.4 2.7 2.8 0.35 0.45 0.45 Max. 920 1.5 3.4 5 0.7 0.7 Unit nm nm V V µA mW mW/cm2 µs µs Infrared LED s Emission spectrum 100 (Typ. Ta=25 ˚C, IF=50 mA) L1939 series (Typ. Ta=25 ˚C, tw=100 µs, 0.1 %) s Radiant flux vs. forward current (Typ. Ta=25 ˚C, tw=100 µs, 0.1 %) 1000 s Forward current vs. forward voltage 10000 RELATIVE RADIANT OUTPUT (%) 80 100 L1939 FORWARD CURRENT (mA) RADIANT FLUX (mW) 1000 60 40 10 L1939-04 100 20 0 700 800 900 1000 1 1 10 100 1000 10000 10 1.0 1.5 2.0 2.5 3.0 WAVELENGTH (nm) KLEDB0201EA FORWARD CURRENT (mA) KLEDB0146EA FORWARD VOLTAGE (V) KLEDB0147EA s Directivity s Radiant output vs. ambient temperature +3 (Typ. IF=50 mA) s Allowable forward current vs. ambient temperature (Typ.) RELATIVE ALLOWABLE FORWARD CURRENT (%) 20˚ 30˚ 40˚ 50˚ 60˚ 70˚ 80˚ 90˚ 100 80 60 40 20˚ 30˚ 40˚ L1939 50˚ 60˚ L1939-04 70˚ 80˚ 20 0 20 40 60 90˚ 80 100 RELATIVE RADIANT OUTPUT (dB) 10˚ 0˚ 10˚ (Typ. Ta=25 ˚C) +2 +1 0 -1 -2 -3 -4 -5 -40 100 80 60 40 20 RELATIVE RADIANT OUTPUT (%) Except for reflection ingredient of the base. 0 -40 -20 0 20 40 60 80 100 -20 0 20 40 60 80 100 AMBIENT TEMPERATURE (˚C) KLEDB0148EA KLEDB0145EA AMBIENT TEMPERATURE (˚C) KLEDB0027EB s Allowable forward current vs. duty ratio 10 (Typ. Ta=25 ˚C) s Dimensional outlines (unit: mm) ➀ L1939 2.3 ± 0.3 ➁ L1939-04 5.4 ± 0.1 5.4 ± 0.2 4.7 ± 0.1 3.6 ± 0.2 13.5 ALLOWABLE FORWARD CURRENT (A) PULSE WIDTH=1 µs 1 PULSE WIDTH=10 µs CLEAR EPOXY RESIN 4.2 ± 0.1 GLASS WINDOW 3.0 ± 0.1 1.12 ± 0.1 PULSE WIDTH=100 µs 0.1 0.45 LEAD 2.54 ± 0.2 13.5 0.01 0.01 0.45 LEAD 2.54 ± 0.2 0.1 1 10 100 DUTY RATIO (%) KLEDB0149EA COMMON TO CASE COMMON TO CASE KLEDA0009ED 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. ©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: 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. KLED1023E01 Apr. 2001 DN